Transcript PAI Presentation - Ordnance Survey

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A Unique
Opportunity
Peter Roper
PROPER GIS Consultancy Ltd.
GIS Consultant for
East Staffordshire Borough Council
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O. S. Positional Accuracy
Improvement
A JUSTIFICATION FOR IMPROVED
DATA ACCURACY WITHIN THE
AUTHORITY’S OWN DATA.
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Pre PAI Processes
• Data Audit
• Data Capture
• Data Cleansing
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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.
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Funding
This being the case, the channel selected
to obtain the required funding, was via
the IEG Board.
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Extracts From
IEG Board
Presentation
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OVERVIEW
• Background
• The PAI Programme
• OS Link Files & “Rubber Sheeting”
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THE BACKGROUND
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 Data has
An RMSE of 1.1m
Post PAI Accuracy
For 1/2500 Rural
Town Data
i.e. Uttoxeter, has
An RMSE of 0.4m
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THE PAI PROGRAMME
BURTON @ 1/1250
Q3 / Q4 2003 - 2004
2005 - 2006
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OS LINK FILES
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ISSUES
• What PAI means to this Authority
• The Numbers
• The Impact
• Business Benefits
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R iv e
1
9
4
7
1
LB
An Area of Mayfield, Showing Existing OS Mapping
in GREY, with Planning Data in BLUE.
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ook
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La Vista
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131.4m
Garage
Su
nd
12
El
Pe
Holmelea
The Same Area of Mayfield, Showing Pre PAI OS Data
in GREY with Post OS PAI Data in RED
This material has been reproduced from
Ordnance Survey digital map data with
the permission of the Controller of
Her Majesty's Stationery Office.
© Crown copyright.
ie
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The Same Area of Mayfield, Showing Post PAI OS
Data in RED with Existing Planning Data in BLUE.
Th i s m a te r ia l h a s b e e n re p r o d u c e d fro m
O rd n a n c e S u rv e y d i g i ta l m a p d at a wi th
t h e p e r m i ss i o n o f th e C o n t ro l l e r o f
H e r M a j e s t y 's S ta t i o n e ry O ff ic e .
© Cr o wn co p yr ig h t.
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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 Within MapInfo GIS
188,000
Polygons Affected by PAI
100,000
Initial Delivery of PAI Q3 / Q4
Subsequent Delivery of PAI 2005 / 2006
43,500
> 56,500
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ISSUES
• What PAI means to this Authority
• The Numbers
• The Impact
• Business Benefits
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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.
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OPTIONS
• External Bureau Service
• Staffs Partnership Bureau Service
• Software Providers
• When to Implement
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External Bureau Service - BKS
pros
cons
Knowledge of ESBC Data
No Quantifiable Quality Level
Low Cost Solution
Staff Resources Required
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Staffs Partnership Bureau Service
pros
cons
Single Software Supplier
- Laser Scan were considered
Varying Resource Costs
Across The Partnership –
Difficult to Quantify
Lower Software Costs
Centralised Data Repository
Data ‘Bottleneck’
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OPTIONS
• External Bureau Service
• Staffs Partnership Bureau Service
• Software Providers
• When to Implement
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OPTIONS
When to Implement
Wait Until Completion
Vs.
Now and Again, and Again, and Again…..
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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.
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RECOMMENDATION
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PAI Implementation
JANUARY
2005
AUGUST
A
Movable
Feast
MAY
FEBRUARY
2003
SEPTEMBER
JULY
2006
2004
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BURTON @ 1/1250
Q3 / Q4 2003 - 2004
2005 - 2006
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BURTON @ 1/1250
DELIVERY MAY 2004
DELIVERY 3 – 8 MONTHS [DEC 2004]
DELIVERY OCTOBER 2004
DELIVERY 2005 / 2006
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PAI Implementation
PAI CHANGES
LAND CHARGES
POLICY
PLANNING
BUILDING CONTROL
ENVIRNMENTAL HEALTH
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Pre PAI Processes
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“Be Prepared!”
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Questions
•?
[email protected]