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GIS in Paratransit

Denver Regional Transportation District's Access-a-Ride (AaR) provides complimentary paratransit service. This project focuses on utilizing GIS to extract fixed-route scheduling system data, apply ADA business rules, and export buffered route traces and service spans. Additionally, the project explores the impact of bus service changes on AaR customers and analyzes Call-n-Ride (CnR) trip data for service planning and coordination. Quality control measures are implemented for CnR in Longmont, Via, and bus locations.

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GIS in Paratransit

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  1. GIS in Paratransit Jeff Becker Denver Regional Transportation District

  2. 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.

  3. 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

  4. GIS • Buffer ¾ mile • Fill doughnuts < 1.5 sq. mi. • Create ADA Boundary • Import doughnut layer to AaR

  5. Effect of Bus Service Changes on AaR Customers

  6. 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.

  7. CnR Service PlanningPopulation + Employment Density

  8. CnR Relationship to AaRAaRrequests are offered to book trips on CnR.Much less costly.

  9. CnR Service Configuration & Scheduling

  10. CnR Trip Origin-Destination Analysis

  11. OD Analysis – Multiple Service Providers • Identify overlap and potential for coordination.

  12. Longmont CnR, Via & Bus

  13. Location Quality Control

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