Combining EMME/2 and ArcView GIS:

The CAPITAL Model Case Study

Introductions

Richard Hopkins Transport for London (TfL)

Nigel Robbins Brown & Root

David James Brown & Root

CAPITAL Presentation Overview

Purpose of Presentation What is CAPITAL? Software/Applications The Calculator

Overview Key Components Stages of the Calculator

Examples of output

Purpose of presentation

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

definition

Calculator

(for measuring)

Public Transport Accessibility

in London

What is CAPITAL?

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

CAPITAL - Software / Applications

Software Overview Emme/2 - Railplan ArcView GIS Network Analyst

ReportingReporting

QueriesQueries

Customised Interface

Customised Interface

ArcView 3.2( + Network Analyst )

GIS CAPITAL

Model

ArcView 3.2( + Network Analyst )

GIS CAPITAL

Model

Database tables

Database tables

TfL Spatial Layers and Base mapping layersTfL Spatial Layers and Base mapping layersData transferred into emme/2 (via macros)

Data transferred into GIS (via ASCII files)

Railplan PT model

EMME/2 software Strategic ‘PT Network/Assignment’ model

Stations, TOC, LUL, DLR, Bus services/network Amended zoning structure

Area of Interest for Demo:Parliament Square

Extent of Railplan PT model

Area of Interest for Demo: Parliament Square

OSCAR networkRailplan Zones

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Railplan nodes

Railplan network

CAPITAL:The concept

PT access 1(Bus Stop)

PT access 2 (LUL Station)

PT access 3(TOC Rail Station)

10 mins

6 mins

4 mins

3 mins

7 mins

10 mins

ED Origin(s) Centroid

ED Destination(s) Centroid

Walk Access Timevia OSCAR network

(GIS)

PT Travel Timevia Railplan network

(emme/2)

Walk Egress Timevia OSCAR network

(GIS)

20 mins

10 mins

5 mins

Example of Origin and Destination selection

OSCAR networkED boundaryED CentroidRailplan zoneRailplan networkRailplan nodesRailplan nodes (Selected within buffer)Buffer AreaMin.Cost route(s)

Railplan zone and Census ED boundaries

OSCAR networkED boundaryED CentroidRailplan zoneRailplan networkRailplan nodesRailplan nodes (Selected within buffer)Buffer AreaMin.Cost route(s)

Railplan zone and Census ED boundaries (+ OSCAR links)

OSCAR networkED boundaryED CentroidRailplan zoneRailplan networkRailplan nodesRailplan nodes (Selected within buffer)Buffer AreaMin.Cost route(s)

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

Least Cost Path through Walk Network

OSCAR networkED boundaryED CentroidRailplan zoneRailplan networkRailplan nodesRailplan nodes (Selected within buffer)Buffer AreaMin.Cost route(s)

Demonstration of CAPITAL

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

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

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