ECONOMIC FEASIBILITY OF DUAL-MODE BUS TRANSIT SYSTEMS

THE SUCCESS OF SEVERAL EXCLUSIVE-LANE BUS DEMONSTRATIONS IN EFFECTIVELY ATTRACTING AND MOVING URBAN PEAK-HOUR COMMUTERS HAS BROUGHT MORE ATTENTION TO THE CONCEPT OF LARGE DUAL-MODE BUSES AS A REALISTIC NEAR-TERM SOLUTION TO THE INCREASING URBAN TRANSPORTATION PROBLEM. THIS PAPER ANALYZES THE COST COMPONENTS AND TRAVEL TIME RELATIONS FOR SEVERAL CONFIGURATIONS OF SUCH AUTOMATED, LARGE-BUS, DUAL-MODE SYSTEMS IN A HYPOTHETICAL HIGH SERVICE LEVEL URBAN TRANSPORTATION NETWORK. THERE IS A TWOFOLD OUTPUT: ORDER-OF-MAGNITUDE COST ESTIMATES FOR IMPLEMENTING AND OPERATING DUAL-MODE BUS SYSTEMS FOR COMPARISON WITH OTHER TYPES OF NEW URBAN TRANSPORTATION SYSTEMS AND ORDER-OF-MAGNITUDE COMPARATIVE COST ESTIMATES FOR VARIOUS CONFIGURATIONS WITHIN THE DUAL-MODE SYSTEM. SEVERAL MAJOR CONCLUSIONS ARE REACHED. THE DUAL-MODE SYSTEM APPEARS TO OFFER HIGH-SPEED, LINE-HAUL CAPABILITY COMBINED WITH THE LOCAL STREET FLEXIBILITY NECESSARY IN LOW-DENSITY PASSENGER SERVICE AREAS AT LEVELS THAT MAKE IT ATTRACTIVE AND ECONOMICALLY VIABLE. SIGNIFICANT TRAVEL TIME REDUCTIONS OCCUR WITH THE INTRODUCTION OF THE FIRST 20 PERCENT OF LINE-HAUL GUIDEWAY AT RELATIVELY LOW COST. IN COMPARISON TO DUAL-MODE SYSTEMS, PUBLIC STREET NONGUIDEWAY SYSTEMS ARE LESS COSTLY, BUT THE GREAT INCREASES IN TRAVEL TIME OVER JUST A 20 PERCENT LINE-HAUL GUIDEWAY WOULD SEEM TO MAKE THEM UNATTRACTIVE IN A COST-TIME TRADE-OFF. THE RAIL RAPID LINE-HAUL, FEEDER-BUS LOCAL SERVICE CONFIGURATION IS PROPORTIONATELY MORE COSTLY THAN A DUAL-MODE SYSTEM AND, THUS, WOULD LIKEWISE FAIL A COST-TIME TRADE-OFF.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 10-18
  • Monograph Title: Passenger transportation characteristics in urban areas
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00202367
  • Record Type: Publication
  • ISBN: 0309021707
  • Files: TRIS, TRB
  • Created Date: Dec 22 1973 12:00AM