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GIS in Paratransit
Jeff BeckerDenver Regional Transportation District
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Access-a-Ride (AaR)
ADA complimentary paratransit service. Eligible customers are provided trips within ¾ mile of a fixed route during its span of service.• Extraction of fixed-route scheduling system
data.• Application of ADA business rules.• Export of buffered route traces and service
spans to GIS and AaR scheduling system.
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Fixed-Route Scheduling System – 3 txt files:• 1,100 route/pattern
traces• Route/pattern data• Service spans
Geodatabase - Apply ADA Business Rules
775 route/pattern traces
GIS AaR
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GIS• Buffer ¾ mile• Fill doughnuts
< 1.5 sq. mi.• Create ADA
Boundary
Import doughnut layer to AaR
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Effect of Bus Service Changes on AaR Customers
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Call-n-Ride (CnR)
CnR is general public paratransit provided in certain communities throughout RTD’s district.• Service planning and warrants.• Relationship of CnR to AaR.• Service configuration and scheduling.• Use of trip data for Origin-Destination (OD)
analysis for service planning.
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CnR Service Planning
Population + Employment Density
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CnR Relationship to AaR
AaR requests are offered to book trips on CnR.
Much less costly.
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CnR Service Configuration & Scheduling
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CnR Trip Origin-Destination Analysis
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OD Analysis – Multiple Service Providers
Identify overlap and potential for coordination.
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Longmont CnR, Via & Bus
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Location Quality Control