Shortest Path Modeling - Ordnance Survey Ireland

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PRIME 2
Shortest Path Routing
Simon McCabe
Chief Technology Officer
IMGS
Agenda
IMGS Introduction
Shortest Path Modelling – The Challenge
Shortest Path Modelling – The Solution - PRIME 2
Route Modelling Using Safe Software FME
What is FME?
Shortest Path Modelling in FME
PRIME 2 Demonstration
Other uses for PRIME 2 advanced feature model
Example – Virgin Media - Distance to Duct
Benefits
Summary
IMGS
Who are we?
We deliver innovative spatial solutions for the desktop, web and mobile
Built on our partner’s technology
Intergraph
Safe Software
Leica Geosystems
Designed to meet the challenges of Government, Mapping Agencies
and Utility & Communications Customers
Our customers include ESB, Eircom, Meteor, BT, NIE, Dublin Regional
Water and Drainage GIS, OSI, OSNI (LPS) and 34 Local Authorities
Shortest Path Modeling
The challenge
In Ireland there wasn’t a fully connected road model
Local Authorities did manage road networks
But wasn’t freely available
May not have been a clean connected model
Before PRIME 2 OSI provided a cartographic model
For Utilities shortest path calculations could only be
done by
Creating and maintaining their own network model (costly)
Using Google Maps or Tele Atlas (which were not always
accurate)
Shortest Path Modeling
The Solution
PRIME2 contains:
a fully connected
accurate
attribute driven
road model network for Ireland
Making shortest path modeling
a viable
cost effective
option requiring minimal effort to calculate routes
Shortest Path Modeling
Route Modelling Using Safe Software FME
Powering the flow of spatial data with FME
Enabling people to use their spatial data
where, when and how they want to
Most Used Spatial Interoperable Solution in Ireland
FME Capabilities
 The only complete spatial ETL solution
 Translate spatial data from one
format to another
 Transform spatial data into the
precise data model you need
 Integrate different data types
into a single data model
 Distribute spatial data to users
where, when and how they need it
7
FME Capabilities
 The only complete spatial ETL solution
Translate spatial
data from one
format to
another
300+
supported
formats in FME
2013
Transform spatial
data into the
precise data
model you
need
400+
data
transformation
tools
8
Shortest Path Modelling in FME
Transformer: Shortest Path Finder
Calculates the shortest route between
two given points on a network
Shortest route in terms of distance
Shortest route in terms of cost
Weighting based on an attribute
such as road speed limit
Shortest Path Modelling in FME
Transformer: Shortest Path Finder (FME 2012)
Previously only calculated one path on each
network
Required a Cloner to duplicate one copy of the
network for each route
Shortest Path Modelling in FME
Transformer: Shortest Path Finder (FME 2013)
Multiple Route Support now available in FME 2013
Can now take single network and calculate multiple routes
Route definition changed
Previously start and end point
Now a line with start/end vertices
PointConnector transformer or FromToBuilder
Can include intermediate points en-route
Relationships 1:1, 1:M, M:1, M:M
Demonstration
Other uses for PRIME 2
advanced feature model
Job Routing
“Travelling Sales Man” Plans (multiple stops in one route)
New build designs (can also use skin of the earth model from
PRIME 2 to avoid private lands, bogs, rivers etc)
Telecom networks
Water networks
Gas networks
Virgin Media – Distance to Duct
Virgin Media needed easy to use
tool to calculate cost of new Fibre
connections which can vary
considerably depending on size of
new build
Distance to Duct Service
calculates optimum route using
underlying Ordnance Survey land
base
Costs take into account type of
road as well as overall distance
Benefits
Reduce travel costs
Improved customer satisfaction through increased response times
Decrease capital costs through more efficient new network designs
Thank You
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