Travel time is understood as the time elapsed when a traveler displaces between two places in a network. Its duration is related to several factors including but not limited to: characteristics of the driver, and the vehicle; interaction of drivers in the network (e.g. heterogeneity in other drivers and their vehicles); traffic regulations, and traffic management systems; traffic incidents (e.g. traffic signal failure, vehicular crashes); and weather patterns. Thus, travel time is likely to be dissimilar for similar trips (i.e. same spatial trajectories). This underlines the need to think of travel time in terms of frequency, and not just of magnitude. In other words, travel time is defined as a statistical distribution, where the statistics of the (unpredictable or uncertain) variations are thought to exhibit statistical regularity. In this way, travel time reliability can be defined as a measure of the dispersion (or spread) of the travel time distribution. It should be noted that in the transportation research literature Value of Travel Time (un)Reliability is used interchangeably with Value of Travel Time Variability. The basic idea is that low (high) dispersion means high (low) reliability.


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    Titel :

    Travel Time Reliability Modeling


    Beteiligte:
    H. Rakha (Autor:in) / S. Park (Autor:in) / F. Guo (Autor:in)

    Erscheinungsdatum :

    2011


    Format / Umfang :

    58 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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