12d-2c1 basic civil design part 2 - exds 12d model sales...

Edge of Bitumen

Centreline

Edge of Bitumen

Shoulder

Verge

Shoulder

Table Drain 1

Table Drain 2

Cut Interface

2 5 5 2 1 VariesVaries0.5

1

1 in 3

FLAT INVERT 1 in 2

3%4% 5%

1 in 3

CUT

FINAL CUT FIXED FINAL FILL

FILL

1 2 d M o d e l C o u r s e N o t e s

T r a i n i n g Co u r s eT r a i n i n g Co u r s eT r a i n i n g Co u r s eT r a i n i n g Co u r s e

B A S I C C I V I L D E S I GN BA S I C C I V I L D E S I GN BA S I C C I V I L D E S I GN BA S I C C I V I L D E S I GN –––– PART 2 PART 2 PART 2 PART 2

Edge of Bitumen

Centreline

Edge of Bitumen

Shoulder

Verge

Shoulder

Table Drain 1

Table Drain 2

Cut Interface

Fill Interface

2 5 5 2 1 VariesVaries

0.5

1

1 in 3

FLAT INVERT 1 in 2 3%

4% 5%

1 in 3

CUT

FINAL CUT FIXED FINAL FILL

FILL

Basic Civil Design – Part 2

July 2008

12d Model Civil and Surveying Software

Extra Dimension Solutions

1 2 d M o d e l C o u r s e N o t e s

These notes were prepared by Sonia King and may be copied by an individual for

personal use but MAY NOT be distributed by any business or individual other than

Extra Dimension Solution (EXDS) Pty Ltd.

Disclaimer

These notes MAY NOT be used as the basis for a course of formal instruction

without written permission from Extra Dimension Solution (EXDS) Limited.

Extra Dimension Solution (EXDS) ) Pty Ltd is an authorised distributor of ‘12d Model’.

Disclaimer 12d Model is supplied without any express or implied warranties whatsoever.

No warranty of fitness for a particular purpose is offered.

No liability in respect of engineering details and quantities produced by 12d Model

is accepted.

Finally, these notes have benefited from the feedback of others, and so indirectly have

you. If you felt that any part of these notes were difficult to understand, not clear, or

would benefit from more examples, or if you have any other comments at all,

then please let me know. Please email is [email protected]

Sonia King – August 2010

Copyright 2010 © Extra Dimension Solution (EXDS) ) Pty Ltd

All rights reserved


July 2008 Page



T a b l e o f C o n t e n t s

1 Road Design – The Apply Many Function ........................................................................................ 4

1.1 COMPONENTS OF THE ROAD DESIGN .................................................................................................................................... 4

1.2 COURSE AIMS...................................................................................................................................................................... 4

2 Setting up the Project......................................................................................................................... 5

2.1 EXISTING SURFACE SURVEY................................................................................................................................................. 5

2.2 ROAD CENTRELINES AND KERB RETURNS ............................................................................................................................. 6

2.3 TEMPLATES ......................................................................................................................................................................... 7

2.4 CREATE A MANY TEMPLATE FILE .......................................................................................................................................... 7

2.5 DEFINE TEMPLATES IN THE MANY TEMPLATE FILE (MTF) ....................................................................................................... 8

3 Create the ‘Apply Many’ Function................................................................................................... 10

3.1 APPLY MANY FUNCTION FOR TAYLOR ROAD ........................................................................................................................ 10

3.2 EXERCISE – CREATE APPLY MANY FUNCTION FOR HILL ROAD ............................................................................................. 13

3.3 EXERCISE – COMPARE VOLUMES USING SECTIONS VS EXACT METHOD ................................................................................. 13

4 Removing Road Strings at the Intersection ................................................................................... 14

4.1 INSPECT THE INTERSECTION ............................................................................................................................................... 14

4.2 STOPPING AND STARTING THE TEMPLATE AT THE INTERSECTION – LEFT SIDE TAYLOR ROAD................................................. 15

4.3 EXERCISE – STOPPING AND STARTING TEMPLATES.............................................................................................................. 18

5 Template Modifiers – Widening Taylor Road ................................................................................. 20

5.1 START MODE FOR MODIFIERS............................................................................................................................................. 20

5.2 END MODE FOR MODIFIERS ................................................................................................................................................ 21

5.3 WIDTH MODIFIER ............................................................................................................................................................... 22

5.4 EXTRA START / EXTRA END ................................................................................................................................................ 24

5.5 EXERCISE – CREATE TAPERS ............................................................................................................................................. 27

5.6 ADD COMMENTS – DOCUMENT YOUR WORK ....................................................................................................................... 28

5.7 EXERCISE – MORE WIDTH MODIFIERS ................................................................................................................................ 29

5.8 WIDTH TO STRING MODIFIER .............................................................................................................................................. 31

5.9 SPECIAL CHAINAGES .......................................................................................................................................................... 32

6 Modifying the Template.................................................................................................................... 35

7 Superelevation .................................................................................................................................. 36

7.1 SETTING TRANSITION CURVES ............................................................................................................................................ 36

7.2 MEASURE CHAINAGES........................................................................................................................................................ 37

7.3 CREATE A “XFALL” TEMPLATE MODIFIER FOR THE ‘LMK’ LINK .............................................................................................. 38

7.4 EXERCISE – CREATE A XFALL MODIFIER FOR THE ‘LOK’ LINK............................................................................................... 40

7.5 WORKING SMARTER – BETTER WAYS TO CHANGE THE XFALL OF THE ‘LOK’ LINK .................................................................. 41

7.6 CROSSFALL ON THE RIGHT HAND CARRIAGEWAY ................................................................................................................. 43

8 Intersection Design........................................................................................................................... 44

8.1 PLAN LAYOUT .................................................................................................................................................................... 44

8.2 SETTING SUPER ALIGNMENT LABEL STYLE FOR KERB RETURNS ........................................................................................... 47

8.3 VERTICALLY GRADE KERB RETURNS ................................................................................................................................... 48

8.4 STOPPING AND STARTING THE ROAD TEMPLATES ................................................................................................................ 50

8.5 EXERCISE – GRADING THE BACK OF THE ROUNDABOUT ....................................................................................................... 52

9 Complete the Roundabout ............................................................................................................... 53

9.1 THE “TO STRING” MODIFIER FOR THE BACK OF THE ROUNDABOUT ....................................................................................... 53

9.2 APPLY TEMPLATES TO KERB RETURNS................................................................................................................................ 56

9.3 EXERCISE – CREATE A TIN OF THE ROAD DESIGN ............................................................................................................... 58

10 More Template Modifiers.................................................................................................................. 59

10.1 CROSSFALL FROM EXISTING STRINGS............................................................................................................................. 59

10.2 INSERTING A CENTRAL ISLAND TO HILL ROAD – INSERT MODIFIER ................................................................................... 61

10.3 EXERCISE – TAPER AT THE START OF THE CENTRAL ISLAND ........................................................................................... 63


July 2008 Page



11 Stripping ............................................................................................................................................ 64

12 Appendix – Descriptions of Template Modifiers ........................................................................... 66

12.1 SUMMARY .................................................................................................................................................................... 66

12.2 DESCRIPTIONS OF MODIFIER FIELDS ON PANELS ............................................................................................................ 67

12.3 INSERT AND REMOVE MODIFIERS................................................................................................................................... 69

12.4 INSERT TEMPLATE MODIFIERS ....................................................................................................................................... 72

12.5 WIDTH, HEIGHT OR CROSSFALL MODIFIERS ................................................................................................................... 74

12.6 FROM LINK MODIFIERS.................................................................................................................................................. 76

12.7 TO STRING MODIFIERS.................................................................................................................................................. 77

12.8 TO TIN MODIFIERS ........................................................................................................................................................ 79

12.9 TO RL MODIFIERS ........................................................................................................................................................ 82

12.10 TO 2 STRINGS MODIFIERS............................................................................................................................................. 84

12.11 ONLY FIXED MODIFIER .................................................................................................................................................. 85

13 Chains ................................................................................................................................................ 86

13.1 MAIN MENU .................................................................................................................................................................. 86

13.2 EXECUTION COMMANDS ................................................................................................................................................ 87

13.3 ELEMENT COMMANDS ................................................................................................................................................... 91

13.4 FILES COMMAND........................................................................................................................................................... 93

13.5 VIEW COMMANDS ......................................................................................................................................................... 94

13.6 DRAINAGE COMMANDS.................................................................................................................................................. 96

13.7 OTHER COMMANDS ...................................................................................................................................................... 97

13.8 CONDITIONAL COMMANDS ............................................................................................................................................. 98

14 Appendix C – Description of Training Data.................................................................................. 100


12d Model August 2010 Page Civil and Surveying Software Distributed by Extra Dimension Solutions

4


1 Road Design – The Apply Many Function 1.1 Components of the Road Design

1.2 Course Aims

APPLY

MANY

TIN

Control String

(Road CL)

MTF

(Many Templates File)

Cross Sections

Road Strings

PLOTS − Templates

− Template

Modifiers

− Boxing

− Special

Chainages

− String Modifiers

1

2

4

3

5

Detail design of roads in 12d Model is done using the ‘Apply Many’ function. The sketch below shows how the input parts relate to each other, and the order that we will create them.

This course is about Template Modifiers. There is ONE important thing that you must understand at the end of this course:

Template Modifiers modify the values of width, xfall, and height that were first specified in the templates.



5


2 Setting up the Project

2.1 Existing Surface Survey

1

This course is about Template Modifiers, not about importing and triangulating data.

BUT before we can use modifiers to ‘modify’ a road, we need to set up a road.

Setting up this project involves three parts:

- Importing and triangulating the survey of the existing surface.

- Importing and inspecting two road centreline designs.

- Importing and inspecting three road templates.

A 12d ascii file of a topographic survey has been prepared for this course. Use ‘File I/0 =>=>=>=> Data input =>=>=>=> 12da/4da data to read in the ascii file ‘survey.12da’.

Create a triangulation of the survey data, by adding all of the survey models to a view, and

triangulating the view.

The survey data and the resulting tin are show below.

Open a perspective view; take a look at the tin in the perspective.



6


2.2 Road Centrelines and Kerb Returns

HILL ROAD

TAYLOR ROAD

2

Read the remaining two 12d ascii files (‘Road CL Full Design.12da’ and ‘Kerb Returns.12da’) into the project and add the ‘DESIGN CL’, and ‘KERB RETURNS’ Models to the view.

Your view should appear as shown.

Two roads are to be designed, Hill Road, which runs south-notth, and Taylor Road which runs east west.

Take a look at a long section of each of the roads.

You should satisfy yourself that each alignment has

sensible horizontal and vertical geometry.



7


2.3 Templates

2.4 Create a Many Template File

Three templates have been written, & saved in the template library file ‘Rally_Project_Templates.tpl’

Use: Design =>=>=>=> Templates =>=>=>=> Utilities =>=>=>=> Input

to read the ‘Rally_Project_Templates.tpl’ templates into the project.

This file contains ‘Standard Road’, ‘Narrow Road’ and ‘Standard Road with Gabion Walls’ templates.

3

4

Use Design =>=>=>=> Templates =>=>=>=> Create/Edit to look at these templates.

We will be using these templates for our road design, so it is important that you are familiar with the shape of the design, and the names used for the links in the template.

We will use an ‘Apply Many’ function for this road design, so the next step is to create the ‘Many Templates File’ (or MTF).

Use Design =>=>=>=> MTF =>=>=>=> Create to create a MTF for Taylor Road.

Type the name of the new MTF file (type ‘Taylor Road’), then select Taylor Road for the Centreline String, then when you press ‘Create’ the MTF edit panel will open.



8


2.5 Define Templates in the Many Template File (MTF)

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

Start at Ch 0.000 and use

‘Standard Road’ template. Do this until the instruction on the next line.

At Ch 9999, use no template.

There are two ways to specify templates applied along the Centreline in the MTF Panel.

The First is to use the Template Area:

Use the MTF Edit panel to specify which templates are to be used for Taylor Road. Walk Right on ‘Templates’ and choose ‘Left Side’

The ‘Left Side Templates’ panel will open. Fill out the panel as shown, right click to display then choose the ‘standard road’ template.

THEN, repeat these steps for the template on the ‘Right Side’ again using the Standard Road template.



9


The Second way to insert Templates is to use the Modifiers Area:

Use the MTF Edit panel to specify which templates are to be used for Taylor Road. Walk Right on ‘Modifiers’ and choose ‘Left Side’

The ‘Left Side ’Modifiers’ panel will open.

Double click and Insert a Comment on the First Line as shown.

Double click and walk right on the Fixed Area and select the “Insert Full Template” option.

The “Insert Full Template” option will insert the whole template. That is the Fixed, Decisions, Cut, Fill and Final parts of the template along the nominated Reference String.

Additional modifiers to change this template can be placed after the “Insert of the Full Template”.

Select the “Standard Road” Template.

The Start and End Modes

allow you to get 12d to automatically calculate the

start and end of the reference string.

Ensure to remove the Extra Start and Extra End tick boxes



10


3 Create the ‘Apply Many’ Function 3.1 Apply Many Function for Taylor Road

3.1.1 The ‘Main’ Tab

The Apply Many Panel has 9 tabs.

There are only two tabs that we MUST consider:

Main tab is where we input data.

Models tab is where we tell 12d Model where

to store the results

Misc tab has miscellaneous settings.

Tin tab allows us to create a tin of the design.

Sight tab allows analysis of Sight Distances.

Filter tab creates a copy of the design cross sections based on the filtered details, this is

used to reduce the number of plotted cross

sections.

Resume tab calculates the areas of privately

owned land required for the construction.

Plot tab defines what long and cross section

plots that are created.

Tadpoles tab defines the cut/fill marks along the design to display the cut and fill areas.

Type in a new Function name, then hit ‘Enter’ key. Choose the ‘Tin’

Choose the ‘MTF’ file.

Press the

button for ‘Reference’,

then pick the Reference string (the road centreline) from the screen.

The function name can be anything, but as this is

the function that creates Taylor Road, so we will

use that name.

The tin is optional. If you do not choose the tin,

then no cut/fill batters will be created, and no volumes will be reported.

The Reference is the control string (the Super Alignment string).

All chainages are measured to this string. All cross sections are created perpendicular to this string.

To create an Apply Many Function for Taylor Road

Design => Apply => Apply Many



11


3.1.2 The ‘Models’ Tab

3.1.3 The ‘Misc’ Tab

You are creating design cross sections and design strings. This tab allows you to tell 12d

Model where you want the models saved.

If you leave the fields blank the Apply Many will run, but the results will not be saved and

you will not be able to look at the results.

The model names you type here can be

anything, but as these models relate to the design of Taylor Road, we will use Taylor Road Strings & Taylor Road Sections.

Polygons will be created in a new model Taylor Road Polygons and the Road

Boundary will be created in a new model Taylor Road Boundary.

Use Upper Case ‘T’ for Taylor . This will put the design models at the top of the list of models.

DON’T use existing models in this panel. For example, it is possible to create the new design strings and design cross sections in the ‘survey roads’ model. This would be a mistake.

If you type a new model name into these fields, 12d will create the model, and put the relevant strings into that model.

Type in a new model names for the Strings and Sections.

Choose a colour for the cross sections.

Type in a new model name for the ‘polygons’ and for the ‘road boundary’.

Choose ‘super arcs’

Arcs are created on the strings parallel to the Reference.

‘Volume correction for curves’ refers to the use of

Pappus Second Theorem in the calculation of volumes by cross sections. You will get a

different volume if you tick this box. ‘Google’ it.

If ‘Partial interfaces’ is ticked, and then the

interface string can stop and start.

If ‘Copy hinge’ is ticked, then a copy will be made of the hinge string (either the Reference

or the Hinge string). A copy of the hinge will be taken if you create a Tin on the next tab.

The panel also allows you to specify a ‘Map File’ for use in the Apply Many process.

The Map File allows you to take control of the

string that is created by 12d Model. More about this later…



12


3.1.4 Run the ‘Apply Many’ Function

3.1.5 Running the ‘Apply Many’ Function Again

Press the ‘Apply’ button

The first time you press the Apply button, cross sections and strings are created.

The next (and subsequent) times you press

Apply, the sections and strings are deleted, and new ones created.

This means that if any of the three ‘inputs’ change (the Control String, MTF and tin) then

the design will be updated just by pressing the Apply button.

The panel shows a successful Apply where the

‘NS-D’ volumes (Natural Surface vs Design) volumes are shown. ‘c’ is for cut, ‘f’ is for fill and ‘b’ is for balance.

The Apply Function can be run again in four ways:

1. Pressing Apply on the ‘Apply Templates

Function’ as shown above.

2. Pressing ‘Recalc’ on the MTF Editor

3. Using the Recalc off the ‘Recalc’ panel

(Utilities=>Recalc)

4. Pressing ‘Recalc’ on the Recalc panel, then

picking any of the strings or sections created by the Function.

Save the MTF &

Choose ‘Recalc’

Walk right on ‘Recalc’ and

choose the function to recalc the Function.

Or Press ‘Recalc’ then choose

a string or section from the design on the screen.

1

1

2

2 3

3

4

4



13


3.2 Exercise – Create Apply Many Function for Hill Road

3.3 Exercise – Compare Volumes using Sections vs Exact method

Create the MTF and Apply Many Function for Hill Road

1. Create an MTF for Hill Road (Design=>MTF=>Create). Remember to Select ‘Hill Road’ Centreline.

2. In the MTF, specify the templates to be used for Hill Road (use the ‘Narrow Road’ Template for Hill Road)

3. Open the Apply Templates Function panel for Hill Road (Design=> Apply=> Apply Many)

(a) On the ‘Main’ tab choose the three inputs (tin, MTF and control string) for Hill Road.

(b) On the ‘Models’ tab type in the model names where the strings and sections are to be saved

Common mistakes

1. You must have an MTF file for each of the roads. For example, you cannot use the Taylor Road MTF file

for Hill Road.

2. You should put the strings and sections created by the function into separate models,

ONE model for the strings and another different model for the sections.

3. You should put the strings and sections created by the function into new models.

Simply type in the model name, and 12d will create the model, and will put the data into it.

4. To automatically fill out the Apply Many Panel you can Type in the Function Name you require & hit the ENTER key and 12d will fill out the defaults for the panel, eg The MTF name, the Model names, Volume

Report – this means that everything is related making it easier to see what relates to Taylor Road.

Run the ‘Taylor Road’ function again, and take a note of the earthworks volumes

Volumes BY SECTIONS

Cut ________________________________m3

Fill _________________________________m3

Balance_____________________________m3

User the ‘Tin’ tab on the ‘Taylor Road’ function to create a tin of the design.

Use ‘Design=>Volumes=>Exact=>Tin to Tin to calculate earthwork volumes between the existing and design surfaces.

EXACT Volumes

Cut ________________________________m3

Fill _________________________________m3

Balance_____________________________m3

The volumes calculated using the ‘Exact’ (tin to tin) method are ‘correct’. The volumes calculated

during the ‘Apply’ function are calculated by cross sections, and are a close approximation.



14


4 Removing Road Strings at the Intersection 4.1 Inspect the Intersection

Add the model containing the proposed kerb returns to the plan view, and zoom on the intersection of Taylor and Hill Roads.

A new Roundabout is proposed for the intersections of Taylor and Hill Roads.

The strings and sections from the Apply Many

function should stop & start at the roundabout.

This will be done using the ‘Templates’ part of the MTF file.

After the strings and sections are removed, the intersections will be ready for the design of the roundabout.



15


4.2 Stopping and Starting the Template at the Intersection – Left Side Taylor Road

At present the MTF for Taylor Road specifies that the templates will be applied from CH 0.000 to CH 9999.000.

This will cause the template to be applied from the start to the end of the alignment.

We will change this, so that the template will stop at the start of the intersection and start again past the intersection.

Add or remove models from the Plan view so that only the Design CL and the Kerb Return models are on the view.

Open the Left Templates panel, and right click in the chainage field on line 2

right click

Use the “Insert Above”

Button to create a new row.

Use the “Insert Below”

Button to create a new row.



16


Move the mouse onto Plan 1, and pick the end of the Kerb Return

12d Model will measure the chainage on the Reference String opposite the point that you pick.

Pick the start of the Kerb Return as shown.

When you ‘accept’ the point, the chainage will be set in the Templates panel.

Press the ‘Apply’ button on the ‘Left Side Templates’ panel

The chainage measured on the Reference String is 342.6991.

The panel now says:

1. Start a Ch 0.000 and use the Standard Road template.

2. Get to Ch 342.6991 and use no template.



17


Recalculate Taylor Road and add the Strings & Section to Plan 1.

The sections & strings on the left side of Taylor Road now stop at the Kerb Return.

To start the Template again at the other end of the intersection, create another two rows.

Right click on Chainage field in Line 3 of the

Left Side Templates panel, and measure the chainage for the template to start again past

the intersection.

Type 9999 into the chainage field on line 4

The chainage measured on the Reference String is 342.6991.

The panel now says:

1. Start a Ch 0.000 and use the Standard Road template.


3. Get to Ch 467.3243 and use Standard Road template.


The lines in the Left Side Template panel stop the

template before the intersections and start it again after.



18


4.3 Exercise – Stopping and Starting Templates

1. Stop & Start the Taylor Road templates on the Right Side at the intersection.

The required lines in the MTF and the resulting layout at the

intersections are shown.

2. Stop & Start the Taylor Road templates at the farmer “Joe’s” access.

The required lines in the MTF are shown.

It is important to note that the template panels must have the chainages listed in ascending

chainage order along the Reference String.



19


3. Stop & Start the Templates for Hill Road.

The required lines in the MTF are shown for the left and right sides of Hill Road.

Note that there is a cul-de-sac at the

northern end of Hill Road.

The template should be stopped at the cul-de-sac in the same way.



20


5 Template Modifiers – Widening Taylor Road

5.1 Start Mode for Modifiers

5.1.1 Typed

5.1.2 Start of Reference String

5.1.3 Start of Other String

5.1.4 End of Other String

5.1.5 Lowest Dropped Chainage of Other String

5.1.6 Highest Dropped Chainage of Other String

The Start Mode is for defining the start chainage of the Modifier.

There are a number of methods for defining the start and end chainages when setting up left and right side modifiers and these are set in the Start and End Mode areas of the Modifiers.

Selecting Typed gives you the option of typing in or measuring the start chainage required for the modifier.

Selecting Start of Reference String will use the start chainage of the reference string as the start point for the modifier.

Selecting Start of Other String will drop the start point of the

selected string onto the reference string and the chainage from the

reference string is used as the start chainage required for the modifier.

Selecting End of Other String will drop the end point of the selected string onto the reference string and the chainage from the

reference string is used as the start chainage required for the modifier.

Selecting Lowest Dropped Chainage of Other String will look at both the start and end of the other string and select the lower of the

two dropped chainages from the reference string as the start chainage required for the modifier.

Selecting Highest Dropped Chainage of Other String will look at both the start and end of the other string and select the higher of the

two dropped chainages from the reference string as the start chainage required for the modifier.



21


5.2 End Mode for Modifiers

5.2.1 Typed

5.2.2 End of Reference String

5.2.3 Start of Other String

5.2.4 End of Other String

5.2.5 Lowest Dropped Chainage of Other String

5.2.6 Highest Dropped Chainage of Other String

The End Mode is for defining the end chainage of the Modifier.

Selecting Typed gives you the option of typing in or measuring the end chainage required for the modifier.

Selecting End of Reference String will use the end chainage of the reference string required for the modifier.

Selecting Start of Other String will drop the start point of the selected string onto the reference string and the chainage from the

reference string is used as the end chainage required for the modifier.

Selecting End of Other String will drop the end point of the selected string onto the reference string and the chainage from the

reference string is used as the end chainage required for the modifier.

Selecting Lowest Dropped Chainage of Other String will look at

both the start and end of the other string and select the lower of the two dropped chainages from the reference string as the end chainage required for the modifier.

Selecting Highest Dropped Chainage of Other String will look at both the start and end of the other string and select the higher of the

two dropped chainages from the reference string as the end chainage required for the modifier.



22


5.3 Width Modifier

We wish to widen the left side of Taylor Road from 8m wide to 12m wide.

The widening will start at Ch 164.000 and finish at Ch 286.000

If the widening was required for the whole road,

we could create and use a new template.

The widening is required for part of the road only, so we will use a left side template modifier.

Open the Modifiers=>Left side

panel from the MTF Editor.

Double click in the blank box on line 1 and walk right on ‘Fixed’.

Choose Width from the list of available modifiers.



23


Fill out the Fixed Width panel as shown and press Apply

If the widening was required for the whole road, we would modify the template.

The widening is required for part of the road only, and we will

use a template modifier.

Over a given range of chainages, a Template Modifier changes (modifies) the values given in the template.

Ensure that Extra Start and Extra End are UNTICKED

Press Apply on the Left Template Modifiers panel, then hit the Save and Recalc buttons on the MTF Editor to recalc the design.

The results of the ‘Width’ Modifier are shown.

Take careful note of the width of the road at Ch 144.000 and at Ch 286.000



24


5.4 Extra Start / Extra End

5.4.1 Extra Start Tick Box - UNTICKED

How the Road is created:

When the Apply function is run these things happen:

1. The strings and sections from the previous design are deleted.

2. New cross sections are created based on the template and any template modifiers

3. Strings are created by ‘joining the dots’.

The tapers for the widening have been

created based on the cross sections.

The Cross Sections have been created at regular intervals, tangents points and any modifier chainages.

Extra Start Tick Box - UNTICKED

At the start of the widening modifier, CH 144.000 the Cross Section has been created with 12m as stated. So what happens when the strings are joined together at the start of the modifier? There is a

linear taper from the previously cut Cross Section that is at CH 140.000 (based on the regular 10m sections) to the start of the widening modifier at CH 144.000.

The Taper for the

lane widening occurs over 4m.



25


5.4.2 Extra Start Tick Box - UNTICKED

Join the Dots

Check carefully the width of the cross sections at Ch 144.000 & at Ch 286.000 (the chainages

specified in the width modifier).

Use ‘String Inquire’ to check the

width. The name of the string is

the chainage, and the width of the segment is shown at the bottom of the information panel.

Extra End Tick Box - UNTICKED

At the end of the widening modifier, at CH 286.000 the Cross Section has been created with an 8m

cross section, which is not what was set in the modifier (check on page 23), the 12m widening finished at the previous cross section CH 280.000?

12d Model looks at the next cross section when deciding what to do

and as CH 290.000 is back at 8m wide CH 286.000 is created the same.

The Taper for the lane widening occurs over 6m.



26


5.4.3 Extra Start & Extra End - TICKED

Why Extra Start / Extra End is a good idea ______________________________________________________ _________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

Why Extra Start / Extra End is a bad idea _______________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

Open the ‘Fixed Width’ modifier panel from the Left Side Modifiers, and Tick the ‘Extra start & Extra end boxes.

Recalculate the Design

When ‘Extra Start’ is ticked, an extra cross section will be created 0.1mm before the Start Chainage shown in the panel

In this case the Start Chainage is 144 and cross sections will be created at Ch 143.9999 and at Ch 144.0000.

When ‘Extra End’ is ticked, an extra cross section will be created 0.1mm before the End Chainage shown in the panel

In this case the End Chainage is 286 and cross sections will be created at Ch285.9999 and at Ch286.0000.

Tick ‘Extra Start’ and ‘Extra End’ and Recalc “Taylor Road’ and have a look at the cross sections and strings created.



27


5.5 Exercise – Create Tapers

At present the widening of Taylor Road starts abruptly at Ch144.000 and ends abruptly at Ch286.000

We wish to create a 1:8 taper at the start & end of the widening.

The widening is 4m, so the tapers will be 32m long.

The entry taper will start at Ch 144 - 32 = Ch112.000 and will end at Ch144.000

The exit taper will start at Ch286.000 and will end at Ch 286+32 = Ch318.000

To achieve this we will create two more width modifiers:

The first modifier will change the width of the lok string. It will start at Ch112.000 and end at

Ch 144.000. The width at the start Ch112.000 will be 8m (to match the carriageway of Taylor Road). The width at the end Ch 144.000 will be 12m.

Extra Start and Extra End are NOT required.

Tip:

1. Right Click on the line number to add new lines to the Template Modifiers panel, or use the new “Inert Above” and “Insert Below” Buttons on the right of the Panel.

2. Double on the ‘type’ field of a line to open a panel to edit that line

The completed Left Template Modifiers panel is shown above, and the result of the modifiers can be seen to the right.



28


5.6 Add Comments – Document Your Work

Right click on the number for line 1 and choose ‘Insert Above

Double click on the blank line, and choose ‘Comment’

Type a relevant comment into the line.

Adding a comment takes only a few

seconds, and will

probably save you (or someone else) a

lot of time when the design needs

to be modified in the future.

To Insert a new Row into the Modifiers

panel, select as

above or use the ‘insert above’ or

‘insert below’ buttons on the right hand side of the panel



29


5.7 Exercise – More Width Modifiers

We will add a bus bay at the western end of Taylor Road.

A string has been created to give the shape of the bus bay.

The string has been saved in a 12d ascii file; that is the format to use when exchanging data between

people who use 12d Model Software.

Use File I/O=>Data Input=>12da/4da data to read in ‘busbay control.12da’ and use a Prefix of ‘Design ‘.

Add the new model ‘Design bus bay control’ to the plan view and zoom in on the new string at the eastern end of Taylor Road.

We will use a series of ‘Width’ modifiers to make the lok string sit on top of the ‘bus bay control’ string.

Add new lines to the MTF file to create the widening shown.



30


_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

_________________________________________________________________________________________

There would need to be seven new lines in total.

The panel for the first of these is

shown below and the MTF is on the next page.

Note: That a Comment has been included.

The Lip of Kerb String ‘lok’ is to be widened to match the new Bus Bay Layout



31


5.8 Width to String Modifier

An alternative to creating seven modifiers for the Bus Bay is to use a ‘Width to String’ modifier.

Width to String achieves a similar result as the seven modifiers created in the exercise, but with only

one modifier. If the shape of the Bus Bay string changes, all that is required is a ‘Recalc’ to change the lok.

Create a new ‘Width to String’ modifier.

Set the seven modifiers created in the Exercise above to be inactive.

The width to string modifier will adjust the width of the lok link so that the lok string sits on top of the bus bay control string.

“lok” is the link that will be changed

Start and End chainages are measured on the start &

end modes – Refer to sections 5.1 & 5.2

Cross sections will be created at 2m interval between the start and end chainages for this Modifier.

‘Design bus bay control’ is the control string

No Tick = Inactive



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5.9 Special Chainages

The result of the Modifier is shown below.

At first glance it seems that the result is perfect, but closer inspection shows that this is not the case.

12d Model works by creating cross sections at regular intervals, then joining the points on the sections for create

the strings. The road design will be correct at each cross section, but between sections, the string is a simple chord.

Cross Sections are created every 2m between the start & end chainages for the modifier.

‘Design bus bay control’ string

shows the correct position of where the ‘lok’ string needs to be.

The ‘lok’ string has been created between the cross sections.

The special chainage file is simply a list of the chainages where extra sections are required.

To make the design strings match the ‘Bus bay control’ string we need to create extra cross sections

to match the ‘corners’ of the bus bay control.

This is done by creating a list of the chainages within the MTF file where the sections are required, and

either adding a value or putting this list of chainages into a ‘Special Chainage File’.

Close but not close enough!!

Small adjustment needed.



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5.9.1 To Create a Special Chainage File

To create the special chainage file use Design=>Roads=>More=>Special Chainage File.

Type in a File Name

‘Special Chainages’ are extra chainages at a regular interval for the length of a control string (such as the bus bay control).

‘Points’ allows you to pick points, and a list is created of the centreline chainages

opposite those points.

‘String’ will find all of the points on an adjacent string, and create a list of the centreline chainages opposite those points.

‘Align str/curve’ creates a list of chainages at different intervals on the straight and

curved parts of the Centreline.

Once the centreline has been picked, you have a choice of methods for creating the special chainages.

All Road Chainages refer to

the road centreline, and you must pick this FIRST.



34


Use ‘String’ to identify the points on the ‘Design bus bay control’ string where cross sections are required to match the design, and write a special chainage file named ‘Taylor Road.spc’

Once the ‘Design bus bay control’ string

has been picked 12d Model will highlight where the string vertices are located perpendicular to the Reference String.

The Special Chainage file is used in the MTF.

Use Specials=>Files to specify the busbay special chainage file in the MTF.



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6 Modifying the Template

Before moving on to using template modifiers to change the crossfall of the road, we will make a change to the TEMPLATE for Taylor Road. This MODIFICATION of the TEMPLATE will apply to all of the cross sections on Taylor Road.

Use Design=>Templates=>Create/Edit to open the Template Edit panel for standard road. We will edit the FIXED part of the standard road template.

Right click on the character ‘1’ and

choose ‘Insert above. Or use the “Insert below” button on the right side of the panel.

We have Modified the Template. These modifications will apply to the entire road.

Insert details of a new link

(lmk = linemarking) and edit the width of the lok link so that the total road width is 8m as before.

Recalc Taylor Road and the ‘lmk’ string is now shown



36


7 Superelevation 7.1 Setting Transition Curves

Open an Editor for the Taylor

Road Super Alignment. Go to the HIP Editor and set

IP6 as a Curve Spiral with Leading & Trailing 60m Spirals.

Once the Curve Spiral has been set, the Spirals will be displayed as shown here.

Turn on the existing Taylor Road Strings

& Sections and see what shift the spirals

have made to the

centreline. Then Recalc Taylor Road.



37


7.2 Measure Chainages

Superelevation & Widening are to be added to the curve east of the Taylor / Hill intersection.

Superelevation of 7% will be applied to the curve, and this will be applied over a distance of 80m. The spiral lengths are 60m, so the superelevation will start 20m before the start of the transition.

Use the Measure Button to measure the chainages of the Spirals

Remember you can use these fields as calculators – so you can get 12d Model to automatically calculate the 20m value before the TS chainage value.

Left Side Modifier 1 – Xfall -3% to +7%

Left Side Modifier 2 – Xfall +7% to +7%

Left Side Modifier 3 – Xfall +7% to -3%

Right Side Modifier 1 – Xfall -3% to -7%

Right Side Modifier 2 – Xfall -7% to -7% Right Side

Modifier 3 – Xfall -7% to -3%



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7.3 Create a “XFALL” Template Modifier for the ‘lmk’ link

Superelevation will be provided by changing the crossfall of the ‘lmk’ link and also the ‘lok’ link. This is done with a ‘Template Modifier’.

The first modifier will change the crossfall of the lmk link (that is the crossfall to the ‘lmk’ string). This crossfall was originally set in the template at -3%.

Walk right on Modifiers and choose Left side

Double click on the start of the blank line…..

Remember to add a Comment Line to the Modifiers



39


Walk right on Fixed and choose Xfall. It is crossfall that will be modified.

The Crossfall of lmk was originally specified in the ‘Fixed’ part of the

template, so the Fixed part of the template needs to be modified.

Fill out the Fixed Xfall panel as shown.

The Crossfall of the lmk link will be changed linearly over a distance of 80m:

from –3% at Ch 523.815

to +7% at Ch 603.815.

At the next regular chainage (Ch620) the crossfall of lmk will be unmodified, and will be –3%.

To complete the superelevation, two more template modifiers are required;

The second modifier will change the left side crossfall to +7% around the length of the circular curve.

The third modifier will change the crossfall from +7% back to -3% to tie into the straight part of the road.



40


7.4 Exercise – Create a XFALL Modifier for the ‘lok’ link

The three lines in the MTF have changed the crossfall of the lmk link (between the

CL & lmk), but there has been no change to the lok link (between lmk & lok links). The section at Ch600 is shown below.

The three lines in the MTF file are shown below. Note that the Start Chainage on line 8 is equal to the End Chainage on line 7. Note also that there are NO extra start or extra end.

Create three new XFALL modifiers to change the crossfall of the lok link.

‘lmk’

The cross fall of the lmk link has been modified

The cross fall of the lok link is unchanged

‘CL’



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7.5 Working Smarter – Better ways to change the XFALL of the ‘lok’ Link

Notes:__________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

There are two better ways to make the crossfall of the ‘lok’ link the same as the crossfall of the ‘lmk’ link.

The first is to add (or modify) both the lmk and the lok in the same modifier. Line 7 from the MTF is shown below firstly with just the lmk link modified,

and secondly with both lmk and lok modified. Again make sure there is a space between the two link names, and if required place “lmk” around the links.

In the second panel, both lmk and lok have been entered in the ‘Link

name’ field, separated by a

space.

The crossfall modifier will change the crossfall of both of these links.

NOTE: There is a trap here….

If you have used the template to create a string named lip of kerb, 12d Model will try to modify 3

strings, one named lip, and another named of and a third named kerb.

The answer is to enclose the string name in quote marks “lip of kerb”.



42


Notes:- In parts of the road where there is no modifier, the values in the original template will be used

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

_______________________________________________________________________________________

The second is to use a Xfall from link modifier.

Xfall from link modifier will find the Crossfall on one part of the cross section, and apply that crossfall to the link you wish to change.

Delete the three Xfall modifiers created in the Exercise below.

Create a Xfall from link modifier.

The new modifier will modify the lok link to make it the same as the lmk link.

The link to be modified is lok.

Start & End Chainages are for the entire curve.

This is a “Same As” Modifier.

No Extra Start / Extra End required.

The crossfall is measured from the

lmk link and the lmk link is found in the fixed part of the template

(not the ‘cut’, ‘fill’, or ‘final).

The crossfall found on the lmk

link will be applied to the lok



43


7.6 Crossfall on the Right Hand Carriageway

So far all of the work that we have done has been on the left hand carriageway. We need to repeat the steps shown above to make the crossfall of the right hand carriageway change from –3% to –7% around the curve.

Use ‘Save & Finish’ to close the MTF Editor panel

Use Design=>MTF=>Edit file to open the MTF in a text file.

Copy the three Xfall Modifiers from the Left side to the Right side to change the crossfall of the right hand carriageway at IP 6 from –3% to –7%.



44


8 Intersection Design 8.1 Plan Layout

8.1.1 Remove Option 1 Layout for the Intersection

The layout of the intersection of Taylor Road and Hill Road has been provided. We will delete the two existing kerb returns, and use the ‘fillet’ command to create new Kerb Returns.

Use Strings=>Delete to delete the existing Kerb Return Strings

Edit the “Templates” menu within the MTF files for both Taylor Road & Hill Road so

that road strings are recreated at the intersection.

The left side template panel is shown for Taylor Road.



45


8.1.2 Create New Plan Layout for the Intersection

Use the ‘Same as’ button off the CAD Control Bar, then choose the back of the roundabout.

The Cad Control Bar will be filled out, then change the string name

to KR2

Use the Fillet button off the Drafting Toolbar to draft

a fillet between the lok strings at the intersection.

Fillet Radius is 25m.

KR2 should be created like this

Using the lok strings...



46


8.1.3 Convert the Kerb Returns to Super Alignments

Repeat the Fillet operation for the second kerb return.

It is important that the fillet runs between the lip of kerb strings and that the direction of the fillet is the same as the direction of traffic – that is if you were driving around a left turn.

Remember that an anticlockwise fillet has a ‘–ve’ (negative) radius.

You should name the second kerb return KR1. If you forget to do so, use Strings=>Strings Edit=>Change to change the name of the string.

Use Strings=>Convert to convert the arcs into a Super Alignments.

You have the opportunity to place the new Super Alignment string into new model, and to give a new

name and colour.

The same technique is used if you draft the arcs in a CAD package and import them into 12D Model.



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8.2 Setting Super Alignment Label Style for Kerb Returns

Or if you have a Model of Kerb Returns (or Centrelines) that you want to change all of their Label Styles to the same Style then use the “Change Style” option from the Super Alignment Toolbar, or…

Strings => Create => Super Alignments => Change Style



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8.3 Vertically Grade Kerb Returns

The Quarter Point Method

This method of grading kerb returns

involves dividing the length of the string into equal quarters. Making the grades at

the start & end quarters match the road grades, and putting a simple grade across the middle length of the string.

Vertical curves can be used to smooth the ride. The curves are of equal length.

The middle of the kerb return simply joins the first and last quarters together.

The last quarter ties into the road strings

The first quarter ties into the road strings



49


Notes: When ‘Clear Vertical Geometry’ is ticked, all existing geometry on the kerb return is removed, and 12d Model creates it from scratch. You should tick the Clear VG box the first time you run the function. ____ _______________________________________________________________________________________ _______________________________________________________________________________________

12d Model will automatically grade the kerb returns, using quarter point grading.

Use Design=>Apply=>Kerb Return Choose the strings that the kerb return must tie into.

The start & end grade strings can be measured on either the lip line or on the centerline of the road.

In this case the TAYLOR ROAD Super Alignment for Taylor Road has been selected as the start grade string.

12d Model will measure the grade on this string, and this will be the grade at the start of the kerb return.

Exercise: Create the vertical geometry for KR1 using the same method as above

The start & end height strings are to be measured on the lip line of the road.

Then pick the Kerb Return string and hit the Apply Button to calculate the Vertical Design.



50


8.4 Stopping and Starting the Road Templates

8.4.1 Using the Templates Area

8.4.2 Using the MTF Modifiers Area

There are two ways to Stop and Start Templates in 12d Model. The first is to use the Templates part of the MTF. The Taylor Road strings and the Hill Road strings need to be stopped so that they match

the new kerb returns. Edit the Templates part of the MTF for Taylor Road so that the road strings and sections stop & start at the intersection.

This procedure is described in Section 4.2

The second is to use the Modifiers part of the MTF.

Go back to the Templates area of the MTF and remove the chainages from the Left and Right side of both Taylor Road and Hill Road, which were set in the Exercise above.

This puts the Taylor Road Strings and Sections back through the intersection.

Open the left side modifiers panel. Between the Fixed Width modifiers for the Lane Widening at Farmer Joe’s

Access way and the Fixed Xfall modifiers for the Superelevation at Curve 6, insert two (2) new rows, add a comment to the first line.



51


Select the Fixed modifiers and the Only Fixed option.

The Start and End Modes need to be defined – refer to sections 5.1 & 5.2 for details.

NOTE: This means that the start and end of the modifier can be linked to the Proposed Kerb

Returns, meaning that if they change in location the design will automatically be adjusted to the new locations when the Road Design is recalculated.

The No. links to remove refers to the number of fixed links

to remove from the template. All the Cut, Fill and Final Cut/Fill links in the template (so the

rest of the template past the fixed area) will automatically be removed as well as the nominated number of fixed links.

NOTE: So if you would like to maintain the carriageway strings through the intersection, this would be the modifier to use.



52


8.5 Exercise – Grading the Back of the Roundabout

Use the Kerb Return Grading Function to create quarter point grading for the back of the roundabout.

Use Utilities=>Measure=>Xfall by Strings to measure the crossfall between the centreline and the back of the roundabout.

This Crossfall is too low…..



53


9 Complete the Roundabout 9.1 The “To String” Modifier for the Back of the Roundabout

There is a modifier that allows a link to be changed both by width and height or xfall, depending on which is specified in the template.

Before the lip of kerb string through the roundabout can be modified, the ‘lok’ string must exist!

Use the Right Side Template part of the Taylor Road MTF file to remove the lines that stop and start the template.

Line 4 stops the template at CH 355.4184.

Simply removing this line will create road

strings through the intersection on the right side, but we will remove both lines 4 and 5.

Save the changes and Recalc Taylor Road and the results can be seen below:



54


Open the Right Side modifiers and insert 2 new rows above the Superelevation Xfall modifiers.

First Row - Create a comment line.

Second Row – Create a Fixed To String Modifier

Modify the lok link to the KR3 string from the start to the end of the KR3 String. Use an interval of 1m to match the curved Kerb Return.

The Cross Section shows the lmk link has not been modified and

remains at –3% Xfall

The lok link has been modified as shown to match the width and xfall of the graded KR3 string.

lmk lok



55


The crossfall has been determined to be too flat, so the crossfall is to remain at –3% for the

entire width of the Roundabout.

Make the Fixed to String Modifier Inactive, and create a Fixed Width to String Modifier

The new Width to String Modifier will only change the width of the lok string, maintaining the crossfall from the

template.

Apply the new modifier and Recalc Taylor Road.

Results are shown below in the section view

lmk lok



56


9.2 Apply Templates to Kerb Returns

Notes:___________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

The final part of the intersection is the kerb & gutter & footpath at the kerb returns.

We will copy the standard road template, then edit it

so that it is suitable to apply to the kerb return, using the graded KR string as the control line.

Use Design=>Templates=>Copy to create a copy of the standard road template

Use Design=>Templates=>Create/Edit to edit the new ‘Kerb and Gutter’ template.

Delete the two lines that would create the road carriageway, and Apply & Draw the new template configuration.

To create a template for the kerb return, starting at the lip of kerb – lok string



57


Use Design => Apply => Many Apply to Create Strings & Sections for the Kerb Returns, KR1 & KR2



58


9.3 Exercise – Create a TIN of the Road Design

Use Tins=>Create=>Triangulate Data to Create a Tin of the Strings & Sections.



59


10 More Template Modifiers 10.1 Crossfall from existing strings

The design of Hill Road requires widening and overlay for much of its length. We will use the crossfall between the existing strings to define the crossfall of the new road on the left side, between Ch 170.000 and Ch 300.000.

In the Plan View, zoom in on the section of Hill Road between Ch 170.000 and Ch 300.000.

Open the MTF Editor for Hill Road, and walk right on Modifiers => Left Side

Profile one of the Cross Sections of Hill Road, then add the

survey ROADS and tin survey

Models to the Section View.

NOTE: This is a very easy way to

select the correct strings for the modifier panel.

ER CR ER SH SH



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Open the Left Side modifiers and insert 2 new rows below the Removing links modifier.

First Row - Create a comment line.

Second Row – Create a Fixed Xfall to 2 Strings Modifier

Select the lok link

Insert the Chainage range for the modifier.

Select the CR string for string 1

Select the ER string for string 2

NOTE: 12d Model will calculate the xfall at each cross

section between the 2 selected strings and apply the xfall to the lok link between then set chainages.

This is a Linear Measure between the two selected strings.

12d Model will search both sides of the Reference String

for the same survey CR string; this is if the Design CL crosses either side of the existing road centreline, whereas we only wish to search on the left side for the ER string, as

there are 2 ER strings, one on each side of the existing road.

The existing xfall has been applied to the left

side of Hill Road as shown here.



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10.2 Inserting a Central Island to Hill Road – Insert Modifier

The Insert template modifier is used for inserting strings parallel to the control line for part of its

length. A typical example would be the strings to create a central reserve or island in the road.

The techniques described here can also be used to define splitter islands, though these are probably better constructed and draped once the basic surface of the road design has been defined.

The Insert command is a template modifier. We are still on Hill Road. Use the MTF Edit panel to open the Right Side modifiers panel, and choose Fixed=>Insert.

This is the first of the new links for the central median island. It is created by the “Fixed Insert” Modifier.

In this case the mk1 link (median kerb 1) is 0m to the right of, and 0m above the previous string.

The new mk1 link will be before the lok link in the cross section.

This panel creates the first of the Insert lines in the MTF file.

The remaining three lines creates the two top and bottom links/strings of the central median island.

The effect on the Hill Road Strings and sections by the insertion of the central

median island are shown.

Clearly some modification is required at the start and end of the central median Island.



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The width of the ‘lok’ string and all subsequent strings is a set distance from the previous string, so that the line of the lip of kerb ‘jag’s.

To smooth this line (and the remaining links in the template) we will simply modify the width of the

lok line from the width without the island (7.0m) to the width within the island (8.4m). Rather than make these ‘absolute’ width, we will vary the width relative to it’s previous position i.e. the modifier

will vary the width of the link from 0m to 1.4m.

This will be done over 40m from Ch 80 to Ch 120.

Reading from the top, these lines will: - Change the width of ‘mk1’ from 0m to 2m starting (at 0m) at Ch130,

and ending (at 2m) at Ch 190

- Change the width of ‘mk2top’ from 1.1 to 0.3 over the same chainages. - Change the width of ‘mk1’ from 2m at Ch 190 to 2m at Ch 260

- Change the width of ‘mk2top’ from 0.3m at Ch 190 to 0.3m at Ch 260 - Change the width of ‘mk1’ from 2m at Ch 260 to 0m at Ch 320

- Change the width of ‘mk2top’ from 0.3m at Ch 260 to 1.1m at Ch 320.

Note that: - The lines 3 and 4 simply maintain the island widths from Ch 190 to Ch 260.

- The starting and stopping points of the modifiers to mk1 and mk2top are the same, but this is not necessary. Remember that when the ‘absolute’ box is ticked, the widths are measured from the previous link, not from the control line. If the absolute box is not ticked, the width of the link is set from the previous position of the link.

The ‘Insert’ modifier creates new strings parallel to the control line. These strings can then be ‘modified’.

We will move the left side of the island (nearest the centre line)

to the right by 2m, and reduce the width of the island from 1.4m to 0.6m.

Use the ‘width’ modifiers to make these changes as shown on in the MTF file below:



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10.3 Exercise – Taper at the Start of the Central Island

mk strings created by the insert modifiers.

lok string

The effects of these modifiers are shown below:

1. At present the island starts 1.4m wide at Ch 120. Change the ‘Insert’ modifiers so that the island starts at Ch 90, and then modify the ‘mk2top’ string so that the start width at Ch 90 is 0.3m and increases to 1.1m

by Ch 120.

2. The ‘lok’ on the right side of Hill Road is now jumping all over the place, so what

we need to do is change the Fixed Width Modifier we had in for changing the lok between Ch 80 and Ch 120. So change it to Ch 70 to Ch 90 changing the width

from 7m to 7.6m (The 0.6m being the width of the central island).

3. Modify the width of ‘lok’ at the end of the island (Ch 300) so that the width varies from +1.4m (8.4m) to +0m (7.0m) over 30m.



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11 Stripping

Stripping effects the project in two ways:

In areas of cut, the volume of material stripped in that area reduces the volume of cut.

In areas of fill, the volume of material stripped in that area increases the volume of fill.

12d Model will adjust the volume calculations made as part of the apply function if a depth of strip is specified. We will be assuming that the following:

- The section of Taylor Road west of the intersection will have the top 200mm of the existing surface

removed (stripped). - The section of Taylor Road east of the intersection will have the top 350mm of the existing surface

removed (stripped).

Stripping is defined in the MTF file. From the MTF Edit panel for Taylor Road, click Stripping.

NOTE: The Stripping Changes panel will pop up. Unlike the Template panel, the stripping panel requires you to fill out the ‘zero’ when the stripping ends:

Start at CH 0 and apply stripping of 0.2m to CH….

CH 414.3, where stripping

increase to 0.35m. Apply this stripping till…..

CH 9999, where stripping becomes 0.0m

Run the Apply Many function again for Taylor Road, and note the difference in the volume of earthworks calculated when striping is used.

Open the Apply Many panel for Taylor Road, and run the apply many with the use stripping box unticked. NOTE: the volume calculated.

Now tick the box, fill out the report panel and run the template again. NOTE: that the volume changes as a result of the stripping.

Stripping is the removal of topsoil, vegetation and organic materials from the construction area. This material is not suitable to be used in the project as fill because the material will breakdown and not

provide correct the CBR results required in the future. In most cases a Geotechnical Investigator will have assessed and identified the depth of topsoil on the construction site.



65


Notes:___________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

The amount of stripping calculated by 12d Model is also displayed in the report file.

Open the report (use Reports => Edit).

An extract from the end of the ‘Taylor Road Vol.rpt’ report file is shown below.

NOTE: That while stripping is used in the calculation of volumes, the stripped surface is not generated, and cannot be viewed. The sections and strings created by 12d Model will interface to the tin specified in the apply function, not to the striped surface.

The Tick Boxes on the Apply Many panel are as follows :-

“Partial Interfaces” allows the interface string to stop and start. Tick this box if you have part of the

road where an interface to the ground will not be required (say at a bridge).

“Sections as 4d” will create the sections as 4d strings, with the string name added at each vertex. Tick this box if you want the annotation.

The text can be made visible by:_____________________________________________________

“Copy Hinge” will add a copy of the hinge string (usually the CL) into the ‘strings’ model.

“Volume correction for curves” will apply a volume correction to the volume calculated by the apply,

based on the difference in distance between the centroids of each cross section and the distance along the centreline (Pappas’s 2nd theorem). This can make a noticeable difference

when a road has tight horizontal curves. Google it.



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12 Appendix – Descriptions of Template Modifiers 12.1 Summary

When the template is created there are four parts that are usually used.

These are:- - Fixed

- Cut

- Fill - Final

As you can see, there are ten ‘families’ of modifiers.

1. Insert or Remove Strings (links) from the cross section 2. Insert part or a Full Template

3. Modify the Width, Height or Xfall/Slope values that you specify in the template. 4. Modify the Width, Height or Xfall/Slope to equal the values provided within some other part (from

link) of your template (cross section).

5. Modify the Width, Height or Xfall/Slope to a string, so that the string (link) matches either the horizontal or vertical “answers” from an independent string.

6. Modify the Width, Height or Xfall/Slope To a String, this will modify both the horizontal and vertical position of the string (link) to match an (independent) string.

7. Modify the Width, Height or Xfall/Slope so that the string (link) matches to a specified tin. 8. Modify the Width, Height or Xfall/Slope so that the string (link) matches to a specified RL.

9. Modify the Width, Height or Xfall/Slope so that the string (link) is equal to the values measured

between two (to 2) independent strings. 10. Only Fixed – allows multiple fixed strings to be removed from the template. All subsequent Cut,

Fill and Final links will also be removed from the template.

1.

2.

3.

4.

5.

6.

8.

7.

9.

10.

NOTE: The ‘Decisions’ option is not listed above,

because Strings (Links) created using a Decisional Template cannot be modified using these template

modifiers.



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12.2 Descriptions of Modifier Fields on Panels

Descriptions of general fields on Modifiers Panels:

LINK: Select the Link to change.

START MODE: Select the Start Mode required.

(See Section 5.1)

END MODE: Select the End Mode required.

(See Section 5.2)

INTERVAL: By adding an interval distance, cross sections will be created at that interval for length of the modifier.

EXTRA START: If ticked (default) an extra cross section is created

0.1mm before the start chainage of the modifier

Result of widening Road Carriageway from Result of widening Road Carriageway from 8m to 12d with Extra Start TICKED 8m to 12d with Extra Start UNTICKED (No taper between cross sections) (Taper between the last 2 cut cross sections)



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EXTRA END: If ticked (default) an extra cross section is created 0.1mm before the end chainage of the modifier

Result of widening Road Carriageway from Result of widening Road Carriageway from

8m to 12d with Extra Start TICKED 8m to 12d with Extra Start UNTICKED (No taper between cross sections) (Taper between the last 2 cut cross sections)

ABSOLUTE:

If ticked (default) the values specified in the Width/Height/Xfall Fields will

change the Width/Height/Xfall to that value, so if you type a width of 12m, then the link will change from what was set in the template so the link is 12d wide.

If unticked, the value specified in the Width/Height/Xfall Fields will be added to the original value from the template, so if 12m is specified, the 12m will be added to

the 8m already specified in the template, meaning the link will change to 20m wide.

CUBIC (Width and Height):

If unticked (default) the values specified in the Width and Height Fields

are varied linearly between the start and end chainages.

If ticked the values specified in the Width and Height Fields are varied as reverse cubic curves between the start and end chainages.

CUBIC and ROTATE (Xfall): Note: Only one of these options can be selected for the Modifier

If both are unticked (default) the values specified in the Xfall Fields

indicates that the Crossfall is varied linearly with respect to the specified Crossfall between the start and end chainages.

If CUBIC is ticked the values specified in the Xfall Fields are varied as reverse cubic curves between the start and end chainages.

If ROTATE is ticked the values specified in the Xfall Fields are varied linearly with respect to the angle between the start and end chainages.

COMMENT: This is where you can document details about the Modifier

ACTIVE:

If ticked the Modifier will be used when the MTF panel is recalculated

If unticked the Modifier won’t be used when the MTF panel is recalculated



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12.3 Insert and Remove Modifiers

12.3.1 Insert Link

Notes:___________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

To insert a new link for the entire road, use the Template Editor to INSERT a new link into the Template.

NOTE: The new link is insert before the lok.

Save the Template, from here to see the changes to the template you will have to recalculate the Hill Road Apply Many to see the updated design.



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The same information is required for the modifier, as you would have to include for the amendment to the template.

In this case we have inserted an extra lane before the lok.

This then moves the template by the details of the newly inserted link.

The Insert Modifier is used to add links to the existing template but only for a portion of the design.

Select the Link Name for the New String

Select the Colour for the Link

Select the 2 values for either Width/Height/Xfall

(as you would when creating the Template)

Before, this allows you to insert the link before an existing link,

if left blank the link is appended to the end of the fixed part of the template.

Select the Start and End Modes

Interval allows for extra cross sections to be cut along the length of the modifier.

Select Extra Start and Extra End if required.

Place a Comment to describe what the modifier is undertaking.

Active is set to calculate the modifier, untick if not required

The Insert Modifier is also described in Section 10.2

Recalc Hill Road to see the results



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12.3.2 Delete Link

To Remove part of the template for the entire road, simply delete the relevant link (row) from

the template, save the changes to the

template and Recalc the design to see the results.

Simply Highlight the row and use the delete button on the right side of the panel.

To delete a link for part of the road, use a Remove Modifier.

In this case the inv link has been removed.

For the part of the road from CH 320.000 to the start of the kerb return the inv link does not exist.

The location of the tok link is different as a result.

In most cases if you remove a link, you will need to use other modifiers (Width/Height/Xfall) to adjust the position of the remaining links.

The Remove Modifier is used to delete links to the existing template but only for a portion of the design.

Select the Link Name to be removed from the design.

Select the Start and End Modes.

Interval allows for extra cross sections to be cut along the

length of the modifier.



Active is set to calculate the modifier, untick if not required.



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12.4 Insert Template Modifiers

12.4.1 Insert Fixed Links from a Template

To insert multiple links, you can insert a template into the Modifiers.

An example could be a median island as shown.

This Template Fixed Insert Modifier will insert the nominated Template before a link,

or if left blank will be inserted after the last

fixed link of the original template.

Here the template is inserted before the

lmk, at the Super Alignment.

NOTE: This modifier will only insert the fixed

links from the nominated template into the

design, no Decisions, Cut, Fill or Final Cut/Fill will be inserted with this modifier.

NOTE: This is the same for inserting a Cut Template or a Fill Template; only these sections will be inserted.



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12.4.2 Insert Full Template Modifier

To insert a full template use the Insert Full Template Modifier.

The Insert Full Template inserts all the fixed links from a selected template after the existing fixed

links that have already been set and also replaces the decision, cut, fill and final cut/fill links of the existing template with those from the newly selected template.

NOTE: The Original Template’s Decisions, Cut, Fill and Final Cut/Fill will not be used once the Insert Full Template has been employed.

In this case the Cycleway with Gabion Walls template has been inserted on the left side of Taylor Road between Ch 500.000 to Ch 900.

This has meant only 1 modifier for all of these additional links, a time saver!!



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12.5 Width, Height or Crossfall Modifiers

12.5.1 Change Width Modifier

12.5.2 Change Height Modifier

The Width Modifier is also described in Section 5.3

The Width Modifier is used to change the width of a link from the template.

Select the Link Name to change.




Type in the Start Width value for the Modifier.

Type in the End Width value for the Modifier.


Unselect Absolute if required.

Select Cubic if required.

Place a Comment to describe what the modifier is

undertaking.


The Height Modifier is used to change the Height of a link from the template.





Type in the Start Height value for the Modifier.

Type in the End Height value for the Modifier.



Select Cubic if required.


undertaking.


The Height Modifier is used for changing a height value that has been originally specified in the Template.



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12.5.3 Change Xfall Modifier

12.5.4 Change Xfall CRC Modifier

The Xfall Modifier is used to change the xfall of a link from the template.





Type in the Start Xfall value for the Modifier.

Type in the End Xfall value for the Modifier.



Select Cubic or Rotate if required.


undertaking.


The Xfall CRC Modifier is used to change the xfall of a link from the template and uses the

Circular Reverse Curve formula to modify the

cross fall.



Interval allows for extra cross sections to be cut

along the length of the modifier.

Type in the Start Xfall value for the Modifier.

Type in the End Xfall value for the Modifier.

Type in the Start Length value for the circular arcs for the Modifier.

Type in the End Length value for the circular arcs for the Modifier.






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12.6 From Link Modifiers

12.6.1 Width from Link Modifier

12.6.2 Height From Link Modifier

12.6.3 Xfall from Link Modifier

The Width from Link Modifier is used to copy a width of a link from the one of the other links in the template.





Type in the From Link Name for the Modifier.

From Zone is the template zone/area to take the link from.



undertaking.


The Height from Link Modifier is used to copy a height of a link from the one of the other links in the template.







The Xfall from Link Modifier is used to copy a xfall of a

link from the one of the other links in the template.








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12.7 To String Modifiers

12.7.1 Width to String Modifier

12.7.2 Height to String Modifier

The Width to String Modifier is used to widen a link to a

selected string.




Select the String for the link to be widened to.

Side to Search specifies where to find the selected string.




The Width to String Modifier is also described in Section 5.8

The Height to String Modifier is used to change the

height of a link to a selected string.





Select the String for the link to change the height to.




undertaking.




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12.7.3 Xfall to String Modifier

12.7.4 To String Modifier

The Xfall to String Modifier is used to change the xfall of a link to a selected string.





Select the String for the link to change the xfall to.




undertaking.


The Fixed to String Modifier is used to change the link so it is the same as the selected string.





Select the String for the link to calculate the width, height

or xfall to match the selected string.







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12.8 To Tin Modifiers

12.8.1 Width to Tin Modifier

The Width to Tin Modifier is used to change the width of

a link, while maintaining the xfall /height to a selected tin.




Select the Tin for the link to change the width to.




The Width to Tin Modifier with Width and Height values Specified

The Width to Tin Modifier with Width and Xfall Values Specified



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12.8.2 Height to Tin Modifier

The Height to Tin Modifier is used to change the height

of a link, while maintaining the width/xfall to a selected tin.





Select the Tin for the link to change the height to.




The Height to Tin Modifier with Width and Height values Specified

The Height to Tin Modifier with Height and Xfall Values Specified



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12.8.3 Xfall to Tin Modifier

The Xfall to Tin Modifier is used to change the xfall of a

link, while maintaining the width/height to a selected tin.




Select the Tin for the link to change the height to.



undertaking.


The Xfall to Tin Modifier with Xfall and Height values Specified

The Xfall to Tin Modifier with Xfall and Width values Specified



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12.9 To RL Modifiers

12.9.1 Width to RL Modifier

12.9.2 Height to RL Modifier

The Width to RL Modifier is used to change the width of a link, while maintaining the xfall /height to a selected RL.





Select the RL/Elevation for the link to change the width to.




The Width to RL Modifier with Width and Xfall values Specified

The Height to RL Modifier is used to change the height of a link, while maintaining the xfall /width to a selected RL.





Select the RL/Elevation for the link to change the height to.






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Height to RL Modifier continued.

12.9.3 Xfall to RL Modifier

The Height to RL Modifier with Width and Height values Specified

The Height to RL Modifier with Height and Xfall values Specified

The Xfall to RL Modifier is used to change the xfall of a link, while maintaining the width/height to a selected RL.





Select the RL/Elevation for the link to change the xfall to.






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12.10 To 2 Strings Modifiers

12.10.1 Width to 2 Strings Modifier

The Xfall to RL Modifier with Width and Xfall values Specified

The Width to 2 Strings Modifier is used to change the width of a link, by measuring the width between 2 existing

strings.




Select String 1 as the first string to measure between.

Select String 2 as the second string to measure between.

Side 1 to Search specifies where to find the selected string 1.







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12.10.2 Height to 2 Strings Modifier

12.10.3 Xfall to 2 Strings Modifier

12.11 Only Fixed Modifier

The Xfall to 2 Strings Modifier is used to change the xfall of a link, by measuring the xfall between 2 existing strings.











undertaking.


The Height to 2 Strings Modifier is used to change the height of a link, by measuring the height between 2 existing

strings.











The Only Fixed Modifier is used to remove the Variable Cut, Fill and Final Cut/Fill links from the template, and also any fixed links starting form the outer most fix link of the template.

Refer to Section 8.4 for more details.



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13 Chains

13.1 Main Menu

1

3 4

5 6

7

Main menu:

1. Name of the Chain File containing the Commands.

2. Insert a New Command.

3. Delete a Command

4. Copy a Command

5. Move a Command up

the chain.

6. Move a Command

down the chain.

7. Record a Command as

you fill out the panel and then stop the recording.

8. Read in an existing

Chain File.

9. Write / Save a Chain

File and each Command

line.

10. Run the Chain File of

Commands.

11. Finish the Chain File

without saving

8 9 10 11

2

Chains are one of the most powerful tools within 12d Model Software.

They allow users to LINK the usual logical, Survey/Design processes one after the other to form a

chain of commands, which can be run and re-run at any time. Allowing for faster changes, and output

of information.

The Chains menu is found under; Utilities => Chains

The Chain file is a *.rcn file which will be saved into your working directory (above your

*.project directory).

Chains can also be copied into the User_Lib and used on all future projects if a process is deemed to be a set standard and required on all projects.



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13.2 Execution Commands

13.2.1 Option

Pause Recording Stop Recording

Cancel

After giving the Chain file a name, users insert a single Command to be processed.

There are numerous commands that can be used within a Chain; this section will explain the various

Types of commands.

NOTE: after completing each Command, you must Write the file for the change to be saved.

2

The Option command allows users to record any number of

operations (12d panels) carried

out in the program and saves this recording into the Chain.

It is similar to selecting point earlier described and 12d creates the recording panel below; 7

Once you have stopped recording, users are able to

Preview the results of the panel, as completed and check the entry.

NOTE: At a future point, the User may wish to update/change the data originally recorded within

a 12d panel. This is possible by first selecting the Preview button to view the panel, and then selecting the Record button. The user can then make the necessary changes to the 12d panel and stop the recording. The command will now be saved with the modified data.



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13.2.2 Screen Layout file (SLF)

Screen Layout files are easy to create and help save users time in repeatedly the filling out of panels with the same data.

An example would be the:

Design => Volumes => Exact => Tin to Tin panel.

Shown here can be filled out with the correct information and

saved as a SLF file for future reference. When design changes take place the panel can be opened and re-run.

To save the panel simply move your curse to the blue windows bar at the top and middle mouse button click or

click on the White Box

A Menu/Panel Dump panel will appear with the file name being the original panels name. You are able to rename the

SLF file to a more meaningful name and Dump the information on the panel.

When you have finished the panel, you are able to re-read the Dumped SLF via the File => Layout input menu.

White Box

Users are able to save multiple panels to a single

SLF file, save them to the User_Lib and use them on all projects for enhanced productivity.

Users are able to copy panels, ie Duplicate Panels; this saves the User having to fill out the

same options on the same panels, which enhances productivity.

To Save the panel hit the Dump Button

NOTE: From Users experience and feedback. It

is much easier to view a recorded (Option) panel within a Chain rather than opening a SLF file to look at the contents of a saved panel.



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13.2.3 Functions

13.2.4 Chains

13.2.5 Macro

To load a function select the

Icon and select the

function name

Chains can also be selected from the User_Lib directory, so short standard Chains can be applied into all projects.

Any functions created during the Survey / Design process can be “recalculated” as part of the Chain.

NOTE: Remember to Write each Command, before inserting a new “Command”

Chains can be run within other Chains.

This allows users to create smaller chains of processes and then run those small Chains into a larger Chain that

just may control an entire project.

In training we create a 000_Master.rcn

file that contains all our smaller chains to be processed

Some 12d Macro’s can be processed within a Chain.

Macro’s selected for Chains must run through

without any need for User entry. Currently chains are not able to stop for input and then continue to

run through.

“Normal” macros may need to be converted to run with no panel. Make a SLF or Record the macro.



90


13.2.6 Plot

13.2.7 Shell Command

Notes:___________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________ ________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

Chains are able to process Plot Parameter files (ppf’s) that have

been created for our project.

We are now able to create a Plotting Chain which when run,

outputs all the projects Long Sections, Cross Sections and Kerb

Profiles with the click of a single button.

The Shell option within Chains allows users to Shell out to DOS to undertake standard DOS commands.

Users may want to run DOS Batch files, move drawing files or delete files using DOS.



91


13.3 Element Commands

13.3.1 Resolve SA (Super Alignments)

13.3.2 Delete String

13.3.3 Clean Model

As users are able to link (computate) Super Alignments strings together both Horizontally and

Vertically to create complex geometric options.

The Resolve SA allows the Super Alignment strings to be re-calculated, individually as per the sequence of commands within the Chain.

You can now Delete a String, so it can be removed before another operation is done in the Chain File.

Similar to the Models => Clean command on the main menu, the model information will be deleted, but the model name will remain.



92


13.3.4 Create model

13.3.5 Delete tin

13.3.6 Delete model

13.3.7 Delete all tins

13.3.8 Delete all models

Similar to the

Models => Delete => Delete all Models

command on the main menu, all models will be deleted from the project.

Create a model now allows you the option of creating a model in the process of a Chain File

Similar to the Tins => Delete => Delete a Tin

command on the main menu, the Tin information will be deleted, but the Tin model name will remain.

Similar to the

Models => Delete => Delete a Model command on the main menu, the model will be deleted from the project.

Similar to the

Tins => Delete => Delete all Tins command on the main menu, all Tins will be deleted from the project.



93


13.3.9 Delete all templates

13.3.10 Delete all empty models

13.4 Files Command

13.4.1 Delete Files

13.4.2 Compare

Similar to the Models => Delete => Delete Empty Models

command on the main menu, all empty models will be deleted from the project.

Similar to the Design => Templates => Delete =>

Delete all Templates

command on the main menu, all Templates will be deleted from the project.

This option will compare two files, line by line to check they are the same. A report can be written

showing any changes between the files. If the

Compare command is run again, users are give the option to Overwrite or Append the results from the first pass.

This option is similar to deleting a file using Windows Explorer. Users are given access directly

to the files for their project and is set to view all files (*.*) ready for selection and deleting. This

would be used prior to creating a new file with the same name.



94


13.5 View Commands

13.5.1 Redraw all views

13.5.2 Fit view

13.5.3 Create view

13.5.4 Delete view

This command simply refreshes all open views.

This command will simply fit (zoom extents) the data that is currently turned onto the view.

The same as using the view fit button on the plan view itself .

Similar to the View => Create=>

command on the main menu, the new View will be created and Named according to the command.

Similar to the View => Delete command on the main menu, the nominated View will be deleted from the project.



95


13.5.5 Add model to view

13.5.6 Remove model from view

13.5.7 Remove all from view

Notes:___________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

The Selected Model will be added to the specified view with this command.

The Selected Model will be removed from the specified view with this command.

All the Models will be removed from the specified view with this command.



96


13.6 Drainage Commands

13.6.1 Drainage analysis

13.6.2 Drainage analysis – dynamic

13.6.3 Set pit details

13.6.4 Regrade pipes

The Drainage Analysis option within Chains allows users to rerun the Drainage Analysis on the specified Drainage model.

The Drainage Analysis - Dynamic option within Chains allows users to rerun the Drainage

Analysis – Dynamic on the specified Drainage model.

The Set Pit Details option within Chains allows users to Set Pit Details on the specified Drainage model.

The Regrade Pipes option within Chains allows users to Regrade Pipes on the specified Drainage model.



97


13.7 Other Commands

13.7.1 Comment

13.7.2 Halt

Notes:___________________________________________________________________________________

________________________________________________________________________________________ ________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

Users are encouraged to place comments into a chain to help break the commands being run into

smaller and easily understandable areas. A separate icon displays comments within the Chain.

The Halt option within Chains allows users to Halt/Stop the Chain at this command.

A Comment Line can also display where a change in the

chain has occurred, making it

easy to see when compiling/ setting up a chain.



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13.8 Conditional Commands

Chains are often thought of as a linear set of command, which solve

in the defined sequence.

With the use of Conditional

commands within a Chain the user is now able to perform different

computations or actions depending

on whether a condition evaluates to be true or false.

13.8.1 Label

13.8.2 Goto

13.8.3 If Model Is Empty

The Label option within Chains allows users to create a Labelled Line in the chain file.

The Goto option within Chains allows users to

move to an already specified Labelled in the chain file.

Basically “jump to” a Labelled Line.

The “If Model Is Empty” option within Chains

allows users to test if a model is empty in the project.

Basically asking the question and give the User the

ability to change the processing of the Chain based on the answer.



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13.8.4 If Model Exists

13.8.5 If Tin Exists

13.8.6 If File Exists

13.8.7 If View Exists

13.8.8 If Parameter Equals

The “If Model Exists” option within Chains allows users to test if a model exists in the project.



The “If Tin Exists” option within Chains allows users to test if a tin exists in the project.



The “If File Exists” option within Chains allows users to test if a file exists in the project.



The “If View Exists” option within Chains allows users to test if a view exists in the project.



The “If Parameter Equals” option within Chains allows users to test if a parameter equals a

specified value in the chain file.

Basically asking the question and give the User the ability to change the processing of the Chain based on the answer.



100


14 Appendix C – Description of Training Data

Open the “Rally” Project

• Open “rally’ Project, the Survey Data already exists and is triangulated and contours created.

• The Design CL has already been created for Taylor and Hill Roads, Horizontally and Vertically.

• Read in “Rally project templates.tpl” file, open and take a look at the Standard Road template.

• Create the Apply Many for Taylor Road, using the “survey” tin, Taylor Road Super Alignment.

• Create the MTF for Taylor Road using the Standard Road Template on both Left and Right sides.

• Create the Apply Many for Hill Road, using the “survey” tin, Hill Road Super Alignment.

• Create the MTF for Hill Road using the Narrow Road Template on both Left and Right sides using

the new Insert Full Template Modifier.

• Turn on the Model KERB RETURNS & either use these or delete & create new simple kerb returns.

• Stop and Start the Templates at the intersection of Taylor Road using the MTF.

• Go through the Start and End Modes for the Modifiers.

• Start the Hill Road Strings at the end of the Kerb Returns; also stop the Template at the Cul-de-sac.

• Use the Only Fixed Modifier to remove the Road strings through the Accessway on Taylor Road.

• Use the Fixed Width Modifier to widen the “lok” to 12m wide opposite the Accessway. Create 3

modifiers to include Tapers at the Start and End of the widening.

• Adding Super Elevation to the Curve at IP 6 on Taylor Road, we will add a Spiral/Transition to this

curve with leading & trailing lengths of 80m each, then Recalc Taylor Road function, to updated. • Use Fixed Xfall Modifiers to change the xfall of the Road Pavement “lok” string so the xfall on the

outside of the curve is +7% and –7% xfall on the inside of the curve.

• ???? Recalc Taylor Road and view the cross sections to see the results of the xfall modifier.

• Bus Bay Design – Import the “Bus Bay Control.12da” File into the project & Turn on the model.

• Use the Fixed Width to String Modifier to widening the “lok” string to match the new Bus Bay.

• Extra cross sections are required to fit the design to the Bus Bay String, so we need special values

to be set in the MTF file or a Special Chainage File that can then be used for plotting etc. • Use the Insert Modifiers to create a Dish Drain at 8m from the design centreline, to match with

the proposed kerb & gutter.

• Hill Road uses the Narrow Road Template, open the editor & change the one 7m “lok” link to

have two 3.5m links with two names “lmk” and ‘lok”, then Recalc Hill Road Apply Many.

• Profile Hill Road section at CH 220, turn the “survey ROAD” model to see the existing road strings.

• Use the Fixed Xfall to 2 Strings Modifier to calculate the existing road xfall between the CR string

and the ER string and apply it to the design link “lmk” and Recalc Hill Road to update the design. • Copy this calculated xfall from the “lmk” link to the “lok” link using Fixed Xfall from Link Modifier.

• Use the Fixed Xfall to Tin Modifier to change the xfall of the “bdy” string on the left side of

Hill Road between CH 320 and CH 400 so that it matches the survey tin at that location.

• Use the Final Cut Slope & Final Fill Slope Modifiers between CH 300 & CH 400 to change the

existing batter slopes of 1:2 to replicate a Retaining Wall, so a slope of 1:0.001 • Use the Cut Remove Modifier to remove the Table drain strings at the new Retaining wall location.

• Use the Fixed Width to Tin Modifier for the “bdy” string on the left side of Hill Road between

CH 90 to CH 170; this will extend the link at 2% xfall until it intersects with the selected tin.

• Create Vertical Design for all Kerb Returns using the Design=>Apply=>Kerb Return Function.

• Create Strings & Sections for all Kerb Returns using the Design=>Apply=>Apply Many Function

• Create a Triangulation of the Road Design and then create Contours too.

• Create a Chain File, which list all the commands to recalculate the Road Design.

• Change the vertical design of Taylor Road, & then re-run the Chain File to see the design updated.

12d-2c1 basic civil design part 2 - exds 12d model sales...

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