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Studies of vehicle overtaking dynamics and its influence on traffic flow at a bidirectional road

Author

Listed:
  • H. Echab

    (Laboratoire de Magnétisme et de Physique des Hautes Energies (URAC 12), Département de physique, B. P. 1014, Faculté des sciences, Université Mohammed V Rabat, Morocco)

  • R. Marzoug

    (Laboratoire de Magnétisme et de Physique des Hautes Energies (URAC 12), Département de physique, B. P. 1014, Faculté des sciences, Université Mohammed V Rabat, Morocco)

  • N. Lakouari

    (Laboratoire de Magnétisme et de Physique des Hautes Energies (URAC 12), Département de physique, B. P. 1014, Faculté des sciences, Université Mohammed V Rabat, Morocco)

  • H. Ez-Zahraouy

    (Laboratoire de Magnétisme et de Physique des Hautes Energies (URAC 12), Département de physique, B. P. 1014, Faculté des sciences, Université Mohammed V Rabat, Morocco)

Abstract

For the purposes of optimizing traffic flow composed of different types of vehicles, it is important to understand the interactions between them. This paper proposes a cellular automata model to investigate a bidirectional two-lane traffic flow under the periodic boundary condition. The vehicle flux and the phase diagrams of the system in the (ρ1,ρ2) space are constructed by applying two different overtaking models (symmetric, asymmetric). The inter-lane correlation and the overtaking frequency are also studied. The simulation results show that the variation of the density of one lane has an apparent influence on the traffic of the adjacent lane. Furthermore, it is found that the phase diagram on both models is classified into several regions. Thus, for the symmetric model, as the overtaking probability increases, the traffic on the system becomes better. Likewise, the results also indicate that the asymmetric model can effectively enhance the traffic capacity and alleviate the congested state.

Suggested Citation

  • H. Echab & R. Marzoug & N. Lakouari & H. Ez-Zahraouy, 2017. "Studies of vehicle overtaking dynamics and its influence on traffic flow at a bidirectional road," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 28(06), pages 1-13, June.
    • Handle: RePEc:wsi:ijmpcx:v:28:y:2017:i:06:n:s0129183117500772
    DOI: 10.1142/S0129183117500772
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