GIS Transit Applications in Fairfax County, VA
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Transcript of 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.