The mobility allowance shuttle transit (MAST) system is a hybrid transit system in which vehicles are allowed to deviate from a fixed route to serve flexible demand. A mixed integer programming (MIP) formulation for the static scheduling problem of multi-vehicle MAST (m-MAST) system is proposed in this paper. Based on the MIP formulation, we analyze the impacts of time headways between consecutive transit vehicles on the performance of a two-vehicle MAST system. An analytical framework is then developed to model the performance of both one-vehicle and two-vehicle MAST systems, which is used to identify the critical demand level at which an increase of the fleet size from one to two vehicles would be appropriate. Finally, a sensitivity analysis is conducted to find out the impact of a key modeling parameter w1 on the critical demand.


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    Title :

    An analytical model to select the fleet size for MAST systems


    Contributors:
    Wei Lu, (author) / Yuanchang Xie, (author) / Wen Wang, (author) / Quadrifoglio, L. (author)


    Publication date :

    2011-06-01


    Size :

    366302 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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