Abstract Conventional four-step travel demand models, used by most metropolitan planning organizations (MPOs), state departments of transportation, and local planning agencies, are the basis for long-range transportation planning in the United States. Trip distribution—whether the trip is intrazonal (internal) or interzonal (external)—is one of the essential steps in travel demand forecasting. However, the current intrazonal forecasts based on a gravity model involve flawed assumptions, primarily due to a lack of considerations on differences in zone size, land use, and street network patterns. In this study, we first survey 25 MPOs about how they model intrazonal travel and find the state of the practice to be dominated by the gravity model. Using travel data from 31 diverse regions in the U.S., we develop an approach to enhance the conventional model by including more built environment D variables and by using multilevel logistic regression. The models’ predictive capability is confirmed using k-fold cross-validation. The study results provide practical implications for state and local planning and transportation agencies with better accuracy and generalizability.


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    Titel :

    Intrazonal or interzonal? Improving intrazonal travel forecast in a four-step travel demand model


    Beteiligte:
    Park, Keunhyun (Autor:in) / Sabouri, Sadegh (Autor:in) / Lyons, Torrey (Autor:in) / Tian, Guang (Autor:in) / Ewing, Reid (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2019




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.80 Verkehrswesen, Transportwesen: Allgemeines / 74.75 Verkehrsplanung, Verkehrspolitik
    Lokalklassifikation TIB:    535/7000



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    Intrazonal or interzonal? Improving intrazonal travel forecast in a four-step travel demand model

    Park, Keunhyun / Sabouri, Sadegh / Lyons, Torrey et al. | Online Contents | 2019


    Are intrazonal trips ignorable?

    Bhatta, Bharat P. / Larsen, Odd I. | Elsevier | 2010


    Are intrazonal trips ignorable?

    Bhatta, Bharat P. | Online Contents | 2011