course 900 principles of real estate engineering 900.r3.ppt1.2013.09.03.0.0 pp-1 welcome to the...
TRANSCRIPT
COURSE 900
Principles ofReal Estate Engineering
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Welcome to the International Right of Way
Association’s
Objectives
• Use Engineering Scales
• Learn Engineering Terminology
• Interpret Engineering Plans
• Discuss Plan Development
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Schedule
• First Day – Interpreting Engineering Plans• Second Day – Property Descriptions• Expand Upon Fundamental Concepts in
Participant Manual• Exam
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Right of Way Plans used by:
•Appraiser
•Negotiator
•Attorney
•Engineer/Surveyor
Value Property
Explain detailsAcquire Property
Present in CourtLegal Documents
Design & Construct
Engineering Drawings
Graphic ‘Language’Lines
Graphs
Charts
Symbols
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Three View Concept
Each View is Perpendicular to Others
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Top View
Side View
End View
Plan View
Profile View
Cross Section
Gives 3 Dimensional Picture Of Project
Length and Width
Height and Length
Width and Height
Plan View
Top View (“Bird’s-Eye View”)• Horizontal alignment of project• Shape and dimensions of Topography
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Plan View
• Dashed Line Existing
• Solid Line Proposed
• North Arrow Orient Centerline
• Symbols/Legend Pictures
Plan Scale
Relates Plan Distances to Actual Distances
• Measured level
• Enables Reliable Estimated Dimensions
• Determined Based on the Detail to be Shown and the Size of the Plan Sheet
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Engineers Scale
Inches divided into multiples of 10 per inch
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Engineers Scale - Examples
Read the indicated scale like a Thermometer
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Architects Scale
Divides feet into inches and fractions
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Metric Scales
Specifies a ratio (e.g., 1:100)
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Exercise #1 - Scaling
130’
137.5’
190’300’
640’
310’320’
200’
5050’
2000’
3050
’
6500’
1” = 50’
1” = 100’
1” = 1000’
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Metric Conversion Factors
1 meter = 3.2808 feet = 39.37 inches
1 foot = 0.3248 meter
1 Hectare = 10,000 sq. meters = 2.47 acres
1 acre = 0.4047 hectare
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Stations
• Relates all dimensions
• Centerline – Established Control Line
• Dimensioned in 100 foot increments called Stations
• Directions – Back, Ahead, Left, Right
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Stationing
Usually progresses from West to East or South to North
•Numbered (1+00, 2+00, 3+00 …)
•Intermediate points are called “Pluses”(+)
Distances between Stations:
•Numerical difference
•5,280 feet = 1 mile900.R3.PPT1.2013.09.03.0.0 PP-17
Station Equations/Equalities
Used when stationing is not continuous
•Point has two station numbers
Actual distance between stations
•Add individual segment lengths
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Exercise #2 – Station Equations
1. Project Length2,368 feet = 0.45 miles = 143.52
rods2.Ending Station
312+663. A-B= B-C=
A-C= A-C=
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7,116 feet 4,787 feet11,903 feet 2.25 miles
A
94+00
C
225+00165+16 BK177+13 AH
B
4. A-B= B-C= C-D= A-D=
250 feet= 0.34 miles1,780 feet
900 feet630 feet
A 12+00
D 25+00
C 16+00 AH 18+05 BK
11+75 AH B14+50 BK
Exercise #2 – Station Equations
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Station and Offset
Distances Perpendicular to Centerline• Left or Right
Locate any Point by Specifying Station and Offset
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Exercise #3 – Stations & Offsets
74+00 75+00 76+00
Power Pole #1 o
oPower Pole #2
1. Power Pole #1:
2. Power Pole #2:
3. Span:
75+72,
76+44,
29’ Lt
46’ Rt
105’
72’
44’
46’
29’
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Exercise #3 – Stations & Offsets
74+00 75+00 76+00
Power Pole #1 o
oPower Pole #2
57’
90’
60’
65’
4. Plot Trees
5. Distance Between Trees: 126 feet
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Exercise #3 – Stations & Offsets
74+00 75+00 76+00
Power Pole #1 o
oPower Pole #2
25’20’ 80’
60’
6. Plot Fence
X X X X X X X X X
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Highway Curves – Changes in Direction
T - Tangent - Straight Section of Centerline
PI - Point of Intersection
- Delta Angle - Deflection Angle
T
T
PI
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Simple Curve
PC - Point of Curvature
PT - Point of Tangency
L - Length of Curve
R - RadiusR
PTPC
PI
POC - Point on Curve
POT - Point on Tangent
POC
POT
L
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Two Curves, Adjacent, Same Direction
PCC - Point of Compound Curvature
Different Radii
Compound Curve
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Two Curves, Adjacent, Opposite Directions
PRC - Point of Reverse Curvature
Has 2 PIs
Reverse Curve
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1. Top View: Plan
2. Side View:
3. End View:
4. Curve With Constant Radius:
Profile
Cross Section
Simple Curve
Exercise #4 – Highway Curves
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5. Two Curves, Same Direction: Compound Curve
6. Two Curves, Opposite Direction: Reverse Curve
Exercise #4 – Highway Curves
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7. PC:
PT:
Point of Curvature
Point of Tangency
PI:
PRC:
PCC:
L:
Point of Intersection
Point of Reverse Curvature
Point of Compound Curvature
Length of Curve
Exercise #4 – Highway Curves
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7. R:
Rt:
Radius
Right of Centerline
Lt:
POC:
POT:
Left of Centerline
Point on Curve
Point on Tangent
Exercise #4 – Highway Curves
C: Chord
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• Lines of Equal Elevation on Plan View
• Shows Shape and Slope of Land
Close Lines = Steep Slope
Contours Point Up Stream
• Elevations Labeled Each 5th Line
• Contour Interval Vertical Distance Between Contours
Contours
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1. “A”= “B”=1245’ 1230’
“C” = 1230’
2. “A-B”=
“B-C”=
“A-C”=15’ 15’
0’
3. Hill Elevation: 1282’
4. “C” is: Flatter - Contour Spacing
5. Stream Flows:Northeast
N
Exercise #5 – Contours
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Pipeline Plan View
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Overhead Electric Plan View
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Highway Plan View
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Plan View Summary
• Aerial (Birds Eye) View
• Alignment
• Details Right (Rt) and Left (Lt) of Centerline
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Profile View
• Side View
• Elevations On Centerline Only
Existing and Proposed
• Length and Height (Elevations)
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Profile View
• Horizontal Scale: Shows Distance Same Scale as Plan View
• Vertical Scale: Shows Elevations Exaggerated For Clarity
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Datum
• Basis for all Plan Elevations
Bench Mark
• Point of Known Elevation
• Example: Mean Sea Level
• Used for Vertical Control of Project
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Profile Grade Line
• Proposed Final Centerline Elevations
• Percent Grade
%Grade = (V/H) x 100
Rate (%) of Elevation Change
Rise (+) or Fall (-)
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Vertical Highway Curves
• Curved Portion of Profile
• Smooth Transition Between Tangents
• Parabolic Curves
Through Dip – Sag
Over Top of Hill – Crest
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Vertical Highway Curves
• Terminology
PVC – Point of Vertical Curve
PVI – Point of Vertical Intersection
PVT – Point of Vertical Tangency
L – Length Of Curve
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Plan-Profile Sheet
• Contains Both Plan and Profile Views
Plan View – On Top Half Sheet
Profile View – On Bottom Half Sheet
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Underground Example
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Overhead Electric Example
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Highway Example
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Cross-Section View: End View
• Perpendicular to Centerline
• In Ahead Direction
• Existing and Proposed Elevationsat Specific Stations
• Left and Right of Centerline
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Cross-Section View
• Shows Cut and Fill
• Construction Limits
• Ditch Elevations
• Shows Effect on Adjacent Property
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• Superelevation
• Cross-Section Sheet
Cross-Section View
Looking Ahead, Up the Sheet
Always Verify Scale
Sloping Pavement Counters Centrifugal Force
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Exercise #6 – Cross-Section
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Exercise #6 – Cross-Section
1. Fill
2. Cut, Ditch Lt.
3. Pavement Width
4. Dist To C. Limits
5. Shoulder Width
0 Feet
21 Feet
24 Feet
55’ Lt, 52’ Rt
10’ Lt, 12’ Rt
6. To Guardrail
7. Length Of Pipe
8. Road Curving
9 Feet
80 Feet
Left
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Pipeline Typical Cross-Section
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Overhead Cross-Section
• Height and Width• Wire Spacing• Bracing Detail• Clearance• Foundation Detail
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Highway Cross-Sections
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Overhead Utility Plans
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Pipeline Utility Plans
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Highway Construction Plans
• Photographic Reproduction
Scale Errors
Always Verify Scale
Half Size Plans = Double Scale
• Bar Graph Preferable
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Highway Construction Plans Title Sheet
• Agency Name
• Project Type And Length
• Project Identification
• Sheet Index
• Scales Used
• Utilities Encountered
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• Overall Detailed Scope of Project
Highway Construction PlansSchematic Plan
• Roads, Railroads, Towns, Survey Data, Bridge Locations, Project Terminus
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• End View - Completed Shape and Dimensions
Highway Construction PlansTypical Sections
• Design Features
Pavement Thickness and Type
Berm and Pavement Width and Slope
Superelevation Details
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• Clarify Construction Details
Highway Construction PlansGeneral Summary
• Provides Information not Presentablein Graphic Form
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• Total Construction Pay Item Quantities
Highway Construction PlansGeneral Summary
• Used to Prepare Cost Estimate andBid Submission
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Exercise #7 – Construction Plans
1. Overall Scope
2. End View
3. North Arrow
4. Exaggerated Scale5. Quantities/Items
Schematic Plan
Cross-Section
Plan Profile
Gen’l Summary
6. Ditch Elevations
7. Cut/Fill 8. Location/Type/Name
Cross-Sections Profile & X-SectsTitle
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Exercise #7 – Construction Plans
9. Details
10. Correct Scales:
1”= 20’ 1” =
1”= 5’ 1” =
General Notes
40’ 10’
1”= 50’ 1” =
1”= 10 1” =
100’
20’
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Plan–Profile Sheet
• Plan View (Top of Page)
North Arrow - Orient Plan
Centerline and Stations
Detailed Information
Contour Lines
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Plan–Profile Sheet
• Profile View
Centerline Elevations
Horizontal Scale Same as Plan View
Exaggerated Vertical Scale
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Exercise #8 – Plan Profile Sheet
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Exercise #8 – Plan Profile Sheet1. Distance
2. Plan Scale: 1” =
3. Length/Dia.
4. Minimum Cover
2590 Feet
660 Feet
100’, 20”
4 Feet
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Exercise #8 – Plan Profile Sheet5. Depth of Cover
6. Work Area Width
7. Datum
5 Feet
100 Feet
100.00 - ElevationSpike in 14” Oak
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Exercise #8 – Plan Profile Sheet8. Crosses Highway
N12°-42’E Line 3 Times
9. Spans
10. Lengths 481’ & 488’
2
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Exercise #8 – Plan Profile Sheet
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11. Plan Scale: 1”=
12. Width of R/W
13. Max. New R/W 50’
25’ (s)
22+35.33 (PT),120’
20’ 14. Channel Change R/W
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Exercise #8 – Plan Profile Sheet
Delta Angle
17. PVIs
18 degrees Left
16. Property Owners Smith & Wilson
15. Curve Length 300’
21+50 & 25+50
Cross-Sections
• Original Ground & CompletedPavement Elevations
• Usually 50’ or 100’ Intervals
• Ditches, Embankment and Excavation
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Cross-Sections
• Looking Ahead, Up Sheet
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Construction Plan Summary
• All Three Views (Plan, Profile,Cross-Sections) Used Together
• Provides Complete 3D Picture of Project
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Right of Way Plans
Purpose:
• Property Boundaries and Dimensions
• Areas and Rights to be Acquired
• Information Required for Property Descriptions
• Establish Right of Way Limits
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Right of Way Plans –Title Sheet
Similar or Same as Construction Plans
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Right of Way Plans Centerline Plat
• Major Geographic Features
• Filed for Record900.R3.PPT1.2013.09.03.0.0 PP-80
Property Maps
• Overview of all properties• Similar to Photograph or Tax Map
• Land Hook ( ) Indicates Same Ownership900.R3.PPT1.2013.09.03.0.0 PP-81
Summary Sheet
• Parcel Tabulation / Ownership Index
Name and Parcel Number List
Recording Information(Deed Book and Page Number)
Areas – Existing, Taken, and Remaining
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Detail Sheet
• Plat of Subject Parcel (Property Plat)
• Shows Acquisition Detail
• Used to: Prepare Property Appraisals
Calculate Area of Parcel
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Exercise #9 – Right of Way Plans
1. Project goes
2. Properties
3. a. 26D
b. 27R
c. 29
West to East
4 or 5
Drainage - Gum
R/W - Gray
CA/RW - Smith
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Exercise #9 – Right of Way Plans
d. Lanham 23.3 Ac
4. a. Gum
c. Smith
7.4 Ac
3.0 Ac
b. Gray 10.7 Ac
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Exercise #9 – Right of Way Plans
c. Taken?
6. Trees?
No
6
5. a. Pool Taken?
b. Interesting?
No
Not on Property
7. Station / Offset of Corners
164’ Lt340+74
151’ Lt348+29
122’ Rt347+30
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Summary: Interpreting Engineering Plans
• Basic Skill Learned Read and Interpret Engineering Plans
• Engineering Plans Lines, Symbols, Dimensions
• Three View Concept Plan, Profile & Cross-Sections Scale Depends on Detail and Paper Size
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Summary: Interpreting Engineering Plans
• Centerlines, Stations and Offsets Locate Details and Points
• Horizontal Highway Curves Simple, Reverse, Compound
• Curve Nomenclature
• Vertical Highway Curves Sag, Crest
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Summary: Interpreting Engineering Plans
• Right of Way Plans Information to Acquire Property
to Construct Project
• Construction Plans Details for Construction Project
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Compass Bearings
• Line Direction in Degrees, Minutes& Seconds from N/S Line
• Four Cardinal (Main) Directions
Due North Lines are Labeled “N” Due East Lines are Labeled “E” Due South Lines are Labeled “S” Due West Lines are Labeled “W ”
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Compass Bearings
1 Degree (°) = 60 Minutes
1 Minute = 60 Seconds
4 Quadrants: NE, SE, SW, NW
Each Contains 90°
S 15° E Same as N 15° W
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Exercise #10 – Bearings
N36
°30’
E
N43°3
0’E
N57°00’W
1.a.
d. c.
b.
S36
°30’
W
S43°3
0’W
N71°00’W
S57°00’E
S71°00’E
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Exercise #10 – Bearings
N68°00’E S48°45’W
N28°00’W
1.a.
d. c.
b.
S25°00’E
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Assignment
• Complete Exercises 1 - 10
• Answer Self-Study Questions
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