Combining EMME/2 and ArcView GIS: The CAPITAL Model Case Study

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Combining EMME/2 and ArcView GIS The CAPITAL
Model Case Study
EMME/2 10th European User Conference
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Introductions

• Richard Hopkins Transport for London (TfL)
• Nigel Robbins Brown Root
• David James Brown Root

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CAPITAL Presentation Overview

• Purpose of Presentation
• What is CAPITAL?
• Software/Applications
• The Calculator
• Overview
• Key Components
• Stages of the Calculator
• Examples of output

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Purpose of presentation

• What is CAPITAL?
• What is Railplan?
• The EMME/2 and GIS approach

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definition
What is CAPITAL?

• Calculator
• (for measuring)
• Public Transport Accessibility
• in London

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What is CAPITAL?

• To provide a planning tool for calculating
  detailed and accurate measures of real clock
  travel time accessibility, from an area, to a
  specific location (or the reverse movement). e.g.
• Town centres
• Development sites
• Hospitals
• Supermarkets

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CAPITAL - Software / Applications
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Software Overview

• Emme/2 - Railplan
• ArcView GIS
• Network Analyst

Reporting
Customised Interface
ArcView 3.2 ( Network Analyst ) GIS CAPITAL
Model
Database tables
Queries
TfL Spatial Layers and Base mapping layers
Data transferred into emme/2 (via macros)
Data transferred into GIS (via ASCII files)
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Railplan PT model

• EMME/2 software
• Strategic PT Network/Assignment model
• Stations, TOC, LUL, DLR, Bus services/network
• Amended zoning structure

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Extent of Railplan PT model
Area of Interest for Demo Parliament Square
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(No Transcript)
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CAPITALThe concept
PT access 1 (Bus Stop)
10 mins
3 mins
20 mins
PT access 2 (LUL Station)
ED Origin(s) Centroid
ED Destination(s) Centroid
6 mins
7 mins
10 mins
PT access 3 (TOC Rail Station)
4 mins
10 mins
5 mins
Walk Access Time via OSCAR network (GIS)
PT Travel Time via Railplan network (emme/2)
Walk Egress Time via OSCAR network (GIS)
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Example of Origin and Destination selection
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Railplan zone and Census ED boundaries
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Railplan zone and Census ED boundaries ( OSCAR
links)
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How does CAPITAL link the walk and PT networks?

• Bus and Light Rail Stops
• Station Entrances
• PT access/ egress points are the key link
  between
• GIS and Railplan
• SAP - Service Access Point
• SEP - Service Egress Point

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Least Cost Path through Walk Network
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Demonstration of CAPITAL
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Demonstration

• Simple Windows-style interface
• Menus linked to CAPITAL processes
• Management of the Railplan scenarios
• Show how SAPs/SEPs imported into the GIS
• Create a walk file
• Specifying a CAPITAL run linking with Emme/2
• Results shown in GIS

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Achievements

• Improved performance
• Improved network modelling capability
• Modelling of Walk access and egress with improved
  algorithm for egress
• Multiple destinations
• Choice of access/egress mode speeds
• File management structure based on projects

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Next steps..??

• Tools to display route choice
• Multi-modal networks (cycle, car etc)
• Improved management of SAPs/SEPs via Emme/2,
  including node specific penalties
• extend access modes (e.g. cycle, car etc)
• integrate CAPITAL the Planning Information
  Database for TfL.
• Modelling of mobility impaired access/journeys