Transportation modeling frameworks assume that travelers are economically rational; that is, they choose the lowest-cost alternative to complete a desired trip. The reliability of travel time is of critical importance to travelers. The ability to quantify reliability allows planners to estimate more accurately how system performance influences local travel behavior and to evaluate more appropriately potential investments in the transportation system infrastructure. This paper presents a methodology that makes use of automatic vehicle location data from the regional municipality of Waterloo, Ontario, Canada, to estimate the reliability of transit service. On the basis of these data, the impacts of unreliable service on generalized transit user costs are quantified by use of a simulation model of bus arrivals and passengers’ desired arrival times. It is shown that the increasing reliability of arrivals at a station can decrease transit users’ generalized costs significantly and by as much as 15% in a reasonably reliable network. It is further posited that the inclusion of uncertainty in the calculation of generalized costs may provide better estimates of mode splits in travel forecasting models. A description of future applications of the model concludes the paper.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Quantifying Impacts of Transit Reliability on User Costs


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    2009-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Quantifying Reliability of Transit Service in Zurich, Switzerland

    Carrasco, Nelson | Transportation Research Record | 2012


    Quantifying the Effects of Modal Conflicts on Transit Reliability

    Wickland, Teo / Sall, Elizabeth | Transportation Research Record | 2014



    Quantifying the impacts of horizontal and vertical equity in transit route planning

    Camporeale, R. / Caggiani, L. / Fonzone, A. et al. | Taylor & Francis Verlag | 2017