THE DIAL-A-RIDE TRANSPORTATION SYSTEM - SUMMARY REPORT

THE TECHNICAL, ECONOMIC, SOCIAL, POLITICAL, AND INSTITUTIONAL IMPLICATIONS OF THE DIAL-A-RIDE SYSTEM, A DOOR-TO-DOOR PUBLIC TRANSPORTATION SERVICE, ARE DISCUSSED. A FLEET OF SMALL VEHICLES SERVES CUSTOMER REQUESTS AS THEY ARE RECEIVED. THERE ARE NO FIXED ROUTES OR SCHEDULES. RATHER, VEHICLE ASSIGNMENTS ARE DETERMINED BY A DIGITAL COMPUTER PROGRAM, OPERATING ON THE CURRENT CUSTOMER REQUESTS TO PRODUCE MAXIMUM VEHICLE PRODUCTIVITY AND TO ENSURE THAT ALL CUSTOMERS ARE PICKED UP AND DELIVERED WITHIN REASONABLE TIME PERIODS. DIAL-A-RIDE IS THUS A FLEXIBLE, DYNAMIC TRANSPORTATION SYSTEM THAT ADAPTS TO TRAVEL DESIRES AS THEY BECOME APPARENT. THE COST COMPONENTS OF A DIAL-A-RIDE SERVICE ARE VEHICLE OPERATIONS, COMMUNICATIONS AND COMPUTER DISPATCHING, AND OVERHEAD. A REPRESENTATIVE HOURLY COST BREAKDOWN INDICATES THAT VEHICLE OPERATIONS WOULD BE THE DOMINANT EXPENDITURE AT A COST OF TEN DOLLARS AN HOUR PER VEHICLE. VEHICLE OPERATIONS CONSISTS OF DRIVER WAGES, VEHICLE DEPRECIATION CHARGES, MAINTENANCE COSTS, AND FUEL COSTS. ASSIGNMENT ALGORITHMS CAN BE DEVELOPED WHICH WILL PROVIDE A DOOR-TO-DOOR MASS TRANSPORTATION SYSTEM WITH REASONABLE EFFICIENCY. THIS FUNCTION COULD BE PERFORMED IN REAL TIME WITH EXISTING MEDIUM-SIZED COMPUTERS. ONE SUCH COMPUTER ASSIGNMENT ALGORITHM WAS DEVELOPED, PROGRAMMED AND EXTENSIVELY TESTED WITH EXCELLENT RESULTS. /UMTA/

  • Supplemental Notes:
    • PROJ NO MASS-MTD-6
  • Corporate Authors:

    Massachusetts Institute of Technology

    Urban Systems Laboratory, 77 Massachusetts Avenue
    Cambridge, MA  USA  02139
  • Authors:
    • Roos, D
    • Melone, T
    • Little, F
    • PORTER, E
    • Wilson, N
    • Sussman, J
  • Publication Date: 1971-3

Subject/Index Terms

Filing Info

  • Accession Number: 00242077
  • Record Type: Publication
  • Source Agency: Urban Mass Transportation Administration
  • Files: TRIS, USDOT
  • Created Date: Nov 7 1972 12:00AM