GIS Transit Applications in Fairfax County, VA

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GIS Transit Applications GIS Transit Applications in Fairfax County, VAin Fairfax County, VA

Brendan Ford

Department of Information Technology (GIS)

Wendy Jia

Department of Transportation

June, 1999

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Fairfax County DOT

TransportationPlanning

Transit Operations

Highway Operations

Planning OperationsMarketing

Fairfax County DOT - Organization

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GIS and TransportationGIS and Transportation

County Exec. Health

Human Services

DPW&ES

County Attorney

DOT

DPZ

Police

Fire & Rescue

DTA

CSB

GIS

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Fairfax County Transit SystemFairfax County Transit System

FAIRFAX CONNECTOR bus system. 54 static bus routes

xxx bus stops

Other bus systems also serve Fairfax County

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Transit Pilot ProjectTransit Pilot Project

Three FAIRFAX CONNECTOR routes: 103, 105, and 108103, 105, and 108

Routes are complexRoutes are complex Have overlapHave overlap

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Transit Pilot Project - ObjectivesTransit Pilot Project - Objectives

Demonstrate GIS potential in transit planning, operations, and marketing

Effectively model Fairfax Connector bus routes and bus stops using GIS.

Develop custom desktop applications for planners

Integrate existing the transit data sources with GIS database

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Existing Data Sources:Existing Data Sources: Street Centerline NetworkStreet Centerline Network Stop Database (Paradox)Stop Database (Paradox) Boarding and Alighting DataBoarding and Alighting Data Ridership DataRidership Data Census Block GroupsCensus Block Groups Planimetric DataPlanimetric Data Public FacilitiesPublic Facilities Digital Ortho PhotographyDigital Ortho Photography

Pilot Data:Pilot Data: Created bus route layer Created bus route layer

created using Dynamic created using Dynamic SegmentationSegmentation

Geocoded Bus stops using Geocoded Bus stops using ArcViewArcView

Collected stop locations using Collected stop locations using GPS.GPS.

Related stops to routes using Related stops to routes using ADDROUTEMEASUREADDROUTEMEASURE

Transit Pilot Project - DataTransit Pilot Project - Data

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ARC INFOARC INFO Create bus routes using Dynamic Segmentation

ARCVIEWARCVIEW Develop desktop applications

Map ObjectsMap ObjectsDesign Internet information query tools

Transit Pilot Project - SoftwareTransit Pilot Project - Software

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Created in Arc/Info Used MAKEROUTE, SUBSELECT,

APPEND, REMEASURE, etc. Time consuming and difficult for routes with

loops. Errors difficult to fix without rebuilding route Results were excellent

Pilot Project - Bus Route CreationPilot Project - Bus Route Creation

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Transit Pilot Project - ApplicationsTransit Pilot Project - Applications

MarketingMarketing

- Mapping Bus Routes

- Internet Data

Viewing

- Internet Bus Trip

Planning

- Map Origins of “Park

& Ride”

OperationsOperationsPlanningPlanning

- Transit Shed

Analysis

- Route Performance

Comparison

- Optimal Bus Routes

- Boarding and Alighting

Activity Analysis

- Determine Route

Miles

- Measure Distance

between Stops

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Types of Applications:Types of Applications: Analyze land use and demographic features

within the service area Compare route performance Determine optimal bus routes

Transit Pilot Project - PlanningTransit Pilot Project - Planning

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Transit Planning - Transit Planning - ArcViewArcView

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Transit Pilot Project - Planning Transit Pilot Project - Planning

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Benefits:Benefits: User friendly tools for planning tasks Scenario analysis for new service design,

routing adjustment, etc

Baseline study of the service area Easily applicable for traffic & planning studies

Transit Pilot Project - PlanningTransit Pilot Project - Planning

Power

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Types of Applications:Types of Applications: Mapping bus routes Internet data query Internet bus trip planning Efficiently collect & store bus stop

information

Transit Pilot Project - MarketingTransit Pilot Project - Marketing

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•Westbound Stop (GPS)

•Eastbound Stop (GPS)

•Geocoded by Intersection, not the actual stop location. East and westbound stops in same spot.

•Stops not in intersections database, located with GPS

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Benefits:Benefits:

Transit Pilot Project - MarketingTransit Pilot Project - Marketing

Reduce the number of phone calls to the information center

Efficient / accurate field data collection and maintenance

Reduce staff time for mapping applications

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Transit Pilot Project - System Transit Pilot Project - System Implementation and Future PlansImplementation and Future Plans

Develop all bus routes using PATH command in Arc/Info

Collect bus stops using GPS Refine developed applications Identify new applications Transfer maintenance responsibility to

each section in DOT Develop Internet/Intranet Applications with

Arc/IMS

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Speaker - Immediate PlansSpeaker - Immediate Plans

Be on the first tee of the USF golf Be on the first tee of the USF golf course by 5:30 pm today.course by 5:30 pm today.