ON ESTIMATING EFFECTIVE FREQUENCIES AND AVERAGE WAITING TIMES FOR INDIRECT CONNECTIONS

This paper is concerned with the problem of estimating two important service properties of transportation systems in which a traveler may have to use more than one vehicle to complete his journey, such as in urban public transport or intercity air, bus or rail systems. The service properties are waiting time for connections and effective frequency of service from origin to destination. These two service characteristics are among those five - cost, travel time in the vehicle, waiting, access time, and departure frequency - typically found to be most important in transportation planning models for estimating system usage. Despite their importance, there exist no methods for estimating waiting time and frequency which are compatible with the information available in transportation planning studies. In this paper theoretical models for estimating these are developed and then tested with actual data. They are found to be quite accurate in terms of quality of fit to the empirical data. Their use in urban and intercity transportation planning contexts is described, along with the data required, which consists simply of the number of vehicle trips on each of the links and for each of the time periods of interest. /Author/TRRL/

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  • Corporate Authors:

    GORDON AND BREACH SCIENCE PUB.

    AMSTERDAM:
    ,    
  • Authors:
    • Sen, A K
    • Morlok, E K
  • Publication Date: 1976

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Filing Info

  • Accession Number: 00147858
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Feb 16 1981 12:00AM