Highlights ► Optimal network design for road diet is derived based on rigorous mathematical models. ► Competition between motorists and cyclists constitutes multi-objective optimization problems. ► Braess’s paradox is confirmed for the fixed mode-share model. ► Model parameters have a great effect on the variable mode-share model.

    Abstract The present study focuses on the development of a model for the optimal design of a road diet plan within a transportation network, and is based on rigorous mathematical models. In most metropolitan areas, there is insufficient road space to dedicate a portion exclusively for cyclists without negatively affecting existing motorists. Thus, it is crucial to find an efficient way to implement a road diet plan that both maximizes the utility for cyclists and minimizes the negative effect on motorists. A network design problem (NDP), which is usually used to find the best option for providing extra road capacity, is adapted here to derive the best solution for limiting road capacity. The resultant NDP for a road diet (NDPRD) takes a bi-level form. The upper-level problem of the NDPRD is established as one of multi-objective optimization. The lower-level problem accommodates user equilibrium (UE) trip assignment with fixed and variable mode-shares. For the fixed mode-share model, the upper-level problem minimizes the total travel time of both cyclists and motorists. For the variable mode-share model, the upper-level problem includes minimization of both the automobile travel share and the average travel time per unit distance for motorists who keep using automobiles after the implementation of a road diet. A multi-objective genetic algorithm (MOGA) is mobilized to solve the proposed problem. The results of a case study, based on a test network, guarantee a robust approximate Pareto optimal front. The possibility that the proposed methodology could be adopted in the design of a road diet plan in a real transportation network is confirmed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Multi-objective optimization of a road diet network design


    Beteiligte:
    Sohn, Keemin (Autor:in)


    Erscheinungsdatum :

    2011-03-29


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Multi‐objective decision‐making for road design

    Willem Karel M. Brauers / Edmundas Kazimieras Zavadskas / Friedel Peldschus et al. | DOAJ | 2008

    Freier Zugriff

    Multi-objective decision-making for road design

    W. K. M. Brauers / Z. Turskis / E. K. Zavadskas et al. | DOAJ | 2008

    Freier Zugriff

    Optimal sustainable road plans using multi-objective optimization approach

    Chung, Jin-Hyuk / Bae, Yun Kyung / Kim, Jinhee | Elsevier | 2016