This paper proposes a macroscopic model to describe the dynamics of intelligent traffic flow where intelligent vehicles are driving closer to each other than manual vehicles and operating in a form of many platoons each of which contains several vehicles. The model is developed from a car-following model which allows us to obtain well tractable macroscopic equations for such platoon-based traffic operation. A linear stability diagram is constructed from the developed model based on the linear stability method for a certain model parameter set. It is found analytically that platoon-based driving behaviour of intelligent vehicles enhances the stabilisation of traffic flow with respect to a small perturbation. Numerical simulation of an open freeway with an on-ramp bottleneck supports our analytical results. We have argued that the newly developed macroscopic model will provide a better insight into the dynamics of intelligent traffic flow.


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    Title :

    Platoon-based macroscopic model for intelligent traffic flow


    Contributors:
    Ngoduy, D. (author)

    Published in:

    Publication date :

    2013-08-01


    Size :

    17 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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