ANALYTIC EQUILIBRIUM MODEL FOR DIAL-A-RIDE DESIGN

Dial-a-ride is a demand-responsive transportation system in the experimental stages of development. Previous analyses of the system have been dominated by relatively expensive, supply-oriented simulation models and crude, insensitive demand predictions. This paper presents an analytic equilibrium model that has minimal data and computational requirements and is suitable for use in designing future dial-a-ride systems. The model is used to test the sensitivity of level of service and net operating cost to changes in demand model parameters and fares. The results demonstrate the important effects of decisions such as fleet size, service area, and fare levels on the economic and noneconomic prospects of a potential dial-a-ride system. In dial-a-ride as in many other transportation systems, the inter-relations between design parameters and demand response are so complex that only an equilibrium model can predict the impacts of a specific design.

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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on New Transportation Systems and Technology.
• Authors:
  • Lerman, Steven R
  • Wilson, Nigel H M
• Conference:
  • 53rd Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1974-1-21 to 1974-1-25
• Publication Date: 1974

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 38-46
• Monograph Title: NEW TRANSPORTATION SYSTEMS
• Serial:
  • Transportation Research Record
  • Issue Number: 522
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Demand; Demand responsive transportation; Design; Economics; Fares; Level of service; Mathematical models; Operating costs; Paratransit services
• Uncontrolled Terms: Models
• Subject Areas: Design; Economics; Highways; Planning and Forecasting; Public Transportation;

Filing Info

• Accession Number: 00095821
• Record Type: Publication
• ISBN: 030902367X
• Files: TRIS, TRB
• Created Date: Jul 2 1981 12:00AM