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A Unique Opportunity. Peter Roper PROPER GIS Consultancy Ltd. GIS Consultant for East Staffordshire Borough Council. O. S. Positional Accuracy Improvement. A JUSTIFICATION FOR IMPROVED DATA ACCURACY WITHIN THE AUTHORITY’S OWN DATA. Pre PAI Processes. Data Audit. Data Capture.
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A Unique Opportunity Peter Roper PROPERGISConsultancy Ltd. GIS Consultantfor East Staffordshire Borough Council
O. S. Positional Accuracy Improvement A JUSTIFICATION FOR IMPROVED DATA ACCURACY WITHIN THE AUTHORITY’S OWN DATA.
Pre PAI Processes • Data Audit • Data Capture • Data Cleansing
Funding The successful completion of PAI is vital to any organisations Data Management, which, within Local Government is the fundamental component to ensuring the successful completion of e-government initiatives, such as NLIS and NLPG.
Funding This being the case, the channel selected to obtain the required funding, was via the IEG Board.
OVERVIEW • Background • The PAI Programme • OS Link Files & “Rubber Sheeting”
Post PAI Accuracy For 1/2500 Rural Data has An RMSE of 1.1m Modern GIS “No Scale” Data Pre PAI Accuracy For ALL 1/2500 Rural Data has A ‘Route Mean Square Error’ [RMSE] of 2.8m Post PAI Accuracy For 1/2500 Rural Town Data i.e. Uttoxeter, has An RMSE of 0.4m THE BACKGROUND
THE PAI PROGRAMME BURTON@ 1/1250 Q3 / Q4 2003 - 2004 2005 - 2006
ISSUES • What PAI means to this Authority • The Numbers • The Impact • Business Benefits
An Area of Mayfield, Showing Existing OS Mapping in GREY, with Planning Data in BLUE.
The Same Area of Mayfield, Showing Pre PAI OS Data in GREY with Post OS PAI Data in RED
The Same Area of Mayfield, Showing Post PAI OS Data in RED with Existing Planning Data in BLUE.
Polygons Within MapInfo GIS 188,000 THE NUMBERS Polygons Within AXIS2000 82,000 Additional Polygons Created During Data Capture and Data Cleansing 53,500 Additional Polygons Created During Basic Land and Property Unit Capture 52,500 Polygons Affected by PAI 100,000 Initial Delivery of PAI Q3 / Q4 43,500 Subsequent Delivery of PAI 2005 / 2006 > 56,500
ISSUES • What PAI means to this Authority • The Numbers • The Impact • Business Benefits
SOLUTIONS There is no single definitive solution to this issue. • Options • Costs - Costs have to be borne by this authority, even though the O.S., are enforcing this change.
OPTIONS • External Bureau Service • Staffs Partnership Bureau Service • Software Providers • When to Implement
External Bureau Service - BKS cons pros Knowledge of ESBC Data No Quantifiable Quality Level Staff Resources Required Low Cost Solution
Staffs Partnership Bureau Service cons pros Single Software Supplier - Laser Scan were considered Varying Resource Costs Across The Partnership – Difficult to Quantify Lower Software Costs Data ‘Bottleneck’ Centralised Data Repository
OPTIONS • External Bureau Service • Staffs Partnership Bureau Service • Software Providers • When to Implement
OPTIONS When to Implement Wait Until Completion Vs. Now and Again, and Again, and Again…..
CONCLUSIONS • Do We Have A Choice? • PAI WILL HAPPEN – IT CANNOT BE IGNORED. • Can it be Delayed? • WHAT ARE THE BUSINESS IMPACTS? • What Do We Require? • A COST EFFECTIVE SOLUTION.
PAI Implementation A Movable Feast JANUARY JANUARY 2005 AUGUST AUGUST MAY FEBRUARY 2003 SEPTEMBER SEPTEMBER JULY 2006 2004
BURTON@ 1/1250 Q3 / Q4 2003 - 2004 2005 - 2006
BURTON @ 1/1250 DELIVERY MAY 2004 DELIVERY 3 – 8 MONTHS [DEC 2004] DELIVERY OCTOBER 2004 DELIVERY 2005 / 2006
PAI CHANGES Central Team LAND CHARGES POLICY PLANNING BUILDING CONTROL ENVIRNMENTAL HEALTH PAI Implementation
Questions • ? peter.roper@eaststaffsbc.gov.uk