pai implementation for utilities based on...

Pete Ashmore Mike Beswick

PAI Implementation for Utilities

based on StruMap

Mike Beswick, Northgate Information Solutions +44 1905 758 106

http://www.northgate-is.com

http://www.strumap.co.uk

Pete Ashmore, Thames Water


Northgate Information Solutions

• Formed 1969

• Branded Northgate in 2000

• €500M Revenue

• 3,300 employees

• 25 UK offices + 6 International

• 4th largest software company in UK

• 3 Divisions ~ Outsourcing~ Software/Services~ HRS


Northgate StruMap Utility Industry Clients

StruMapClients Worldwide

(supported contracts)

9 of 12 Water & Sewerage Operators

5 Water Supply Only Companies

2 Electricity Operator

•Thames Pam Jaya – Jakarta, Indonesia

• PBAPP – Malaysia

• Teranganu – Malaysia

• LAP – Malaysia

• Jurukur Berjasa (StruMap Agent) - Malaysia


• Linked multiple windows for viewing data

• QA grids to track areas that have been completed

• Shift Reporting Tools

•Shift Report

•Shift Error Report

•Shift Gradient

•Shift Vectors (OS Links & Software Links)

StruMap Tools For The PAI Process


1.0M

1.5M

1.8M

Report gives Maximum shift

of span

Shift Report


Shift Theme


OS Link Vector

System Generated Link Vector

The difference in

magnitude of OS

link vectors and

System link vectors

for a given point if

the OS link is

discarded

Shift Error Report


a

b

c

Shift Gradient for a span = (a-b) / c x 100

Shift Gradient Report


Theme – Shift Error


Navigate by Shift Gradient


Display OS Link Vectors


OS Link Vectors & System Shift Vectors


Shift Gradient + OS Link Vectors


StruMap Manual Fix-up Tools

• Move node

• Move node with connected links

• Move area maintaining connectivity

• Add vertex

• Delete vertex

• Fix complex geometries


StruMap PAI Implementations

• One U.K. Water only utility

• One independent data capture specialist in India

• Two U.K. Water and Waste Water utilities

Including…

Thames Water


Ordnance Survey move the bathroom so

Thames Water move the plumbingInsertion

Open Cut

Directional Drilling


• Thames Water – Overview

• Ordnance Survey – Data Supply to Thames

• Positional Accuracy Improvement Data Supply

• How does PAI affect Thames Water

• Finding and Evaluating a solution to PAI

• Implementation of the solution

• Matching the OS programme to Thames Water

INTRODUCTION


THE THAMES WATER AREA


• 98 Water Treatment Works

• 359 Sewage Treatment Works

• 31,280 Km of Clean Water Mains

• 77,626 Km of Sewers

• 11.8 million customers

• 200,000 Excavations each year

Facts about Thames Water


Large Scale Mapping Available in Thames is ORDNANCE SURVEY LAND-LINE

• First purchased by Thames in 1990

• Landline is supplied at 1:1250 and 1:2500 scale to cover most of the Thames Operational Area

• Landline is subject to a quarterly maintenance agreement

• Thames holds 24,000 Landline Map Tiles

• MasterMap – Dual running with Landline 2004

Ordnance Survey Map


OS LANDLINE HOLDINGS


Ordnance Surveys

PAI Programme

Web Extract

March 2004


Ordnance Survey – PAIP The Thames Area

March 2004


Ordnance Surveys

PAI

Programme

Web Extract

Sept 2004


Ordnance Survey – PAIP The Thames Area

Sept 2004


Ordnance

Surveys

PAI

Programme

Web Extract

May 2005


Delivery of PAIP Maps to ThamesDate No Map sheets ANNUAL TOTAL TOTAL

02/10/2000 84

84 84

04/12/2001 41

41 125

15/10/2002 502

16/12/2002 932

1434 1559

17/02/2003 1

20/03/2003 7

24/04/2003 16

01/07/2003 1

25/07/2003 193

22/09/2003 233

04/12/2003 1

452 2011

06/02/2004 15

29/03/2004 356

28/04/2004 245

28/05/2004 241

28/06/2004 241

28/07/2004 701

24/08/2004 25

27/09/2004 386

14/10/2004 750

29/11/2004 152

21/12/2004 130

3242 5253

19/01/2005 1326

22/02/2005 991

29/04/2005 1356

26/05/2005 788

4461 9714

TOTAL TO DATE 9714


Annual PAIP Delivery To Thames Water

Date No Map sheets TOTAL

2000 84 84

2001 41 125

2002 1434 1559

2003 452 2011

2004 3242 5253

2005 4461 9714

TOTAL 9714


Light Grey 2000 – 2004

Dark Grey Jan 2005 – June 2005

Thames PAI Areas


Map

Creation

date Total links

Mean

Square

Positional

Shift

Maximum

Shift

Minimum

Shift

Average

Shift Block

tq0133 21112002 4072 3.91 10.79 0.01 3.10 tq03

tq0034 21112002 3444 3.77 8.51 0.01 3.38 tq03

tq0235 21112002 3117 4.04 11.63 0.01 3.60 tq03

sp2143 21112002 3993 3.8 198.6 0.0 1.6 sp24

sp2442 21112002 1226 2.2 35.5 0.0 0.7 sp24

OS PAI Statistics


HOW ARE THAMES DEALING WITH PAI

• Initially tried to Avoid loading / distributing the PAI map tiles.

• Investigated how Link Files provided by Ordnance Survey can be

used to reposition the Thames network data.

• Liase with Ordnance Survey on the problems related to Link Files

• PAI Pilot Project - Investigated the possibilities of obtaining software

that will automate the repositioning of the Thames network data.

• Investigate the changes to Address Point data resulting from PAI

• Bid for funding – Present Business Case to Projects Board

• User Test Software for acceptance into the Thames Water Estate

OCTOBER 2001 to March 2004


Objectives

• Identify a test area

• Develop a methodology for evaluation of test results

• Develop rules and standards – consistent assessment

• Identify possible solutions for evaluation

• Evaluate the results with the aim of full implementation

• Place Thames in a position to make sound business decisions

Thames PAI Pilot – Jan 03


Benchmark digitised to meet existing standards presently used in Update Centre

• Updates are captured using “heads up digitising methods”

• Networks follow OS features and are generally within the publichighway

• Features of the network that are transposed must remain within the original feature – a valve within a pathway must remain within that pathway.

• The overall cosmetic view of the network is to remain intact

• The transposed network meets the agreed tolerance of the set benchmark

Business Rules and Standards


• Transpose the networks in the test area

• Divide the transposed network into small sections for measurement

• Measure length of network within an agreed tolerance of the benchmark and set standards for deviation

• Create Benchmark – manual re-digitise the test area network

• Inspect network to ensure cosmetic appearance complies with setstandards

• Record time taken for basis of estimated costs

METHODOLOGY


Manual Shift

System Shift

Methodology

10M


Method Used 0.5 M

Buffer

1.0 M Buffer 1.5 M Buffer 2.0 M Buffer 3.0 M Buffer

No Transposition 64% 74.1% 86.9% 95.68% 99.4%

Method 1 68.5% 85.72% 94.81% 97.69% 99.46%

Method 2 81.72% 97.29% 99.38% 99.71% 99.9%

Method 3 81.96% 95.94% 98.64% 99.15% 99.87%

Method 4 84.97% 94.92% 98.18% 98.88% 99.79%

Method 5 87.39% 94.29% 97.45% 98.66% 99.53%

Method 6 73.65% 89.60% 96.20% 98.20% 99.70%

Method + Manual 83.91% 94.48% 98.03% 99.25% 100%

Transposition Comparisons


In House

• People

• Office Space

• Hardware

• Software & Software Support

• Business Process

• Communication with GIS users

• Data Distribution

• Timetable

• Key advantage – control of process

CHOICE OF PAI SOFTWARE or PAI SERVICE


External Service

• Contract agreement

• Detail of services provided

• Measurement of success or failure

• Programme management

• Data formats – is data conversion required

• People for Quality Assurance

• Internal communication

• Data Distribution

CHOICE OF PAI SOFTWARE or PAI SERVICE


SYSTEM Description Risk Areas

DataMasterNetwork and boundary update tool. Requires upgrade

to process PAI

Coordination of Data transfer to Eagle. Network SGX file

to be coordinated with MapManager for OS data

Eagle - Vision Oracle Database

Capacity to process increased data flow from

DataMaster. Present trickle feed indicates minimal risk

for data volume

Eagle BrowserClient browser for viewing network from Vision

Database and local cache

Syncronising the loading of Clean and Waste Network

with the revised OS map

LASS Properties data set of Thames land holdings

Polygon data will require amendment, this must be

carried out within LASS after revised OS map is loaded

to Eagle

GetMaps View Thames network and other utilites networkNo risk as other utilities data is viewed with its suppliers

OS map. Held as Tiff image

GISMOPrimary used as mobile GIS but does have desktop

use

Capacity to process increased data flow from

DataMaster. Present trickle feed indicates minimal risk

for data volume

Risk of AFR being given wrong incorrect geo ref between

data loads if out of sync with datamaster.

Netbase / Mapinfo Analytical tool of assets

Data is refreshed periodically from DataMaster, logistics

exercise to ensure networks and OS map loaded

together.

Point data that has been geo-reference from address

point may require to be re referenced if address point

moves outside of building poly

IMPACT ANALYSIS OF PAI ON CORPORATE GI SYSTEMS


THAMES WATER’S CHOICE

Automated Shift with Manual final

adjustment

IN HOUSE SOLUTION


StruMap

Datamaster

Eagle

(VISION*)

StruMap

Thamesview

StruMap OST

StruMap

CHAMP

RSG

StruMap

SUS2000

TES

Netbase

DATA

Eagle

Browser

GISMO

LASS

GetMaps

PipeSightMapInfo ESRI

Infoworks

GeoMedia Manual Link (FTE)

Automatic Link

GIS without DB

GIS with DB

The Full GI Picture in Thames


HOW DO YOU FIND AND AMEND

THE OTHER

The Challenge


CW & WW

Network

Data Set Locked

out for Edit

Edit Job

Network Update(existing) – Job Management

DATAMASTER – JOB MANAGEMENT


PAI Shift

Manual

Shift + QA

Manual

Shift + QA

Manual

Shift + QA

CW & WW

Network

Data Set Locked

out for Edit

DataMaster - PAI Network Update


Multiple Linked Windows


QA Grids + Manual

Edit – Theme of checked areas

100 Meter grid

Squares

QA GRIDS


Clean Water Network – Pre & Post Shift


CW Network before PAI


CW Network - After PAI Shift


Shift Error Report And Theme


Shift Report and Theme


Shift Gradient Report and Theme


• Clean Water Network

• Waste Water Network

• Operational Boundaries

• Site Boundaries

• Administration Boundaries

• Point Data – Excavations

• Address Point

• Environmental Boundaries

Thames Asset Information Subject to PAI


• Project funding approved

• Software supplier was chosen

• Software entered User Testing to transpose

• Ongoing learning and refinement of the process

• Coordination process for distributing transposed

data developed

• Coordinate transposition of other related data sets

• Communication to the Business users on progress

Implementation


Network Map Tiles for PAI

0

2000

4000

6000

8000

10000

12000

14000

16000

Backlog March 04 2004/5 2005/6

PAI Programme

1:1

250 M

ap

s

WW Network

CW Network

Thames Water see the software solution as the only viable

option given expected flows from OS

CONCLUSION


Waste Water Overview 2005


Clean Water Overview 2005


Progress


THANKYOU

ANY QUESTIONS ?

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