Heterogeneity exists in car following behaviors due to the driver’s habit, fatigue, distraction, or surrounding traffic. This research proposes a method of modeling and reasoning heterogeneous car-following behaviors based on a stochastic system, where scene vehicles are involved explicitly in addition to the traditional leader–follower pair in characterizing driving situations, a hidden variable (driver state) is introduced to conjugate driving situations to heterogeneous models in predicting a driver’s acceleration control, and the dynamic procedure is described using a dynamic Bayesian network. Experiments are conducted using a large set of naturalistic driving data that were collected by driving an instrumented vehicle on the multi-lane motorways in Beijing, where four distinctive driver states are learnt from data, characterizing the car-following procedure with normal, slow responsive, strong and prompt responsive, and unresponsive behavioral styles. By using the proposed scene-aware multi-state model for acceleration prediction, the error is reduced to 0.19 m/s2 in average compared with 0.29 m/s2 of a single-state model. Influence of scene vehicles on a driver state and subsequently on velocity control is verified based on the data. To the best of our knowledge, this is the first work that explicitly incorporates scene vehicles as influential factors in a probabilistic approach for modeling and reasoning heterogeneous car-following behaviors, and the performance is demonstrated on a large set of naturalistic driving data.


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    Title :

    Aware of Scene Vehicles—Probabilistic Modeling of Car-Following Behaviors in Real-World Traffic


    Contributors:


    Publication date :

    2019-06-01


    Size :

    2781782 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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