The urban external traffic hub is the important node of the correlation between urban transportation and regional transportation, the converging-dispersing traffic in a traffic hub gradually increased along with the accelerating regional integrated process and the strengthening of the correlation between city and countryside. So its influence on urban traffic couldn't be ignored. In view of some uncertainty of traffic resistance to road networks, trip production-attraction of traffic zones and trip converging- dispersing of traffic hubs in the future, this paper discusses a traffic hub distribution forecast under such uncertain conditions without an actual OD and establishes a fuzzy linear programming model which takes the least transport fee (time)as objective function, traffic hub's converging-dispersing and traffic zone's trip production-attraction as restrictions. The solution algorithms are also proposed. Compared with certain distribution model, it has been found that this model rather accords with the fact. In addition, the author discusses how to calculate the specific relations between traffic zones and traffic hubs and the resolution of different extents of uncertainty problem.


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    Title :

    Traffic Distribution Forecast of Urban External Traffic Hub Based on Uncertainty


    Contributors:
    Zhu, Shunying (author) / Guan, Juxiang (author) / Peng, Wuxiong (author) / Xu, Yuan (author)

    Conference:

    Seventh International Conference of Chinese Transportation Professionals Congress (ICCTP) ; 2007 ; Shanghai, China



    Publication date :

    2008-03-21




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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