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WANG Wei, YANG Zhao-sheng, ZHAO Ding-xuan. Control model of variable speed limit based on finite horizon Markov decision-making[J]. Journal of Traffic and Transportation Engineering, 2011, 11(5): 109-114. doi: 10.19818/j.cnki.1671-1637.2011.05.017
Citation: WANG Wei, YANG Zhao-sheng, ZHAO Ding-xuan. Control model of variable speed limit based on finite horizon Markov decision-making[J]. Journal of Traffic and Transportation Engineering, 2011, 11(5): 109-114. doi: 10.19818/j.cnki.1671-1637.2011.05.017
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Control model of variable speed limit based on finite horizon Markov decision-making

doi: 10.19818/j.cnki.1671-1637.2011.05.017
  • 1.

    School of Transportation, Jilin University, Changchun 130025, Jilin, China

  • 2.

    School of Mechanical Science and Engineering, Jilin University, Changchun 130025, Jilin, China

More Information
  • Author Bio:

    WANG Wei (1977-), female, lecturer, PhD, +86-431-85094337, wwei@jlu.edu.cn

  • Received Date: 2011-03-18
  • Publish Date: 2011-10-25
    Abstract
  • The function of variable speed limit(VSL) on expressway mainline was analyzed, and the existing methods of speed limit were studied.The control process of VSL was taken as Markov decision-making process of discrete time.A model of VSL based on reinforcement learning and finite horizon Markov decision-making was proposed.The model was dynamically adjusted through interacting with traffic environment, and solved by using finite horizon backward recursive iterative algorithm.The traffic environment of Chang-Ji Expressway was simulated by using Paramics.Analysis result shows that average traffic volume doesn't reduce, but increases by 3.20% when average limit speed decreases by 6.25% compared with design speed.So the model is feasible to increase traffic volume and improve traffic condition on expressway mainline effectively.

     

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