Highlights This study attempts to incorporate spatial heterogeneity into the optimal design of paired-line hybrid transit systems. A simple trip production and distribution model is introduced to differentiate the central business district of a city from its periphery. Supply heterogeneity is also allowed, which complicates transit users’ route choice modeling. Results of numerical experiments show that concentrating demand in CBD significantly reduces the average system cost. Recognizing demand heterogeneity and responding to it with a tailored design could be highly beneficial.

    Abstract This study attempts to incorporate spatial heterogeneity into the optimal design of paired-line hybrid transit systems, which aims to strike a better balance between accessibility and efficiency by leveraging the flexibility of a demand adaptive service. A simple trip production and distribution model is introduced to differentiate the central business district (CBD) of a city from its periphery. To cope with the heterogeneous demand pattern, the transit system is also configured differently inside and outside the CBD, for both its fixed route and demand adaptive services. Allowing the supply heterogeneity complicates transit users’ route choice modeling considerably. As a result, user costs must be estimated separately for six subregions that constitute the feasible set of the fixed route headway. Each subregion corresponds to a unique route choice behavior, hence leading to a distinctive design model that is formulated as a mixed integer program and solved by a commercial solver. Results of numerical experiments show that concentrating demand in the CBD significantly reduces the average system cost, and this benefit increases as the average demand density becomes larger. Also, recognizing demand heterogeneity and responding to it with a tailored design can be highly beneficial. However, this benefit diminishes as the average demand density increases.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Paired-line hybrid transit design considering spatial heterogeneity


    Beteiligte:
    Luo, Sida (Autor:in) / Nie, Yu (Marco) (Autor:in)


    Erscheinungsdatum :

    2019-04-10


    Format / Umfang :

    20 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch