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Signalized intersection dynamic straight-right lane design and evaluation

Author

Listed:
  • Liang, Shidong
  • Zhao, Tianyu
  • Li, Qi
  • Zhao, Jing

Abstract

Urban signal intersection as the key node in the urban road network, its operational efficiency directly affects the overall operational efficiency of the road network traffic. The existing urban road signal intersections cannot be broadened due to the limitation of road size and boundary lines of road. Some signalized intersections adopt straight-right lane design to improve the traffic efficiency of vehicles at intersections. This design can improve the traffic efficiency of straight-through vehicles during the green light phase. However, straight-through vehicles stopping in the straight-right lane during the red light will prevent right-turning vehicles from passing the intersection. This phenomenon causes delays for right-turning vehicles. In order to deal with the above issues, this paper takes the concept of separating straight and right-turning vehicles in spatial and temporal on the dynamic straight-right lane (DSRL). The organization form of vehicles entering DSRL is designed based on signal phase time. The control strategy for DSRL with the interaction of traffic lights and pre-signal is formulated integrated with the intersection design. The delay indexes of straight and right-turning vehicles under DSRL design are quantified using cellular automata model to calculate vehicle delays under the design form of DSRL. Finally, the test platform based on the actual intersection is established with MATLAB to simulate the operation of the vehicles under the DSRL design. The experiment shows that the delay reduction degree of straight-through vehicles is between 1.2% and 4.5%, and the reduction degree of right-turning vehicles delay is more than 66%, that the operation efficiency of intersection is improved.

Suggested Citation

  • Liang, Shidong & Zhao, Tianyu & Li, Qi & Zhao, Jing, 2023. "Signalized intersection dynamic straight-right lane design and evaluation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 620(C).
    • Handle: RePEc:eee:phsmap:v:620:y:2023:i:c:s0378437123003266
    DOI: 10.1016/j.physa.2023.128771
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    Cited by:

    1. Yang, Bo & Wang, Chunsheng & Cao, Yuan & Yang, Qiaoli, 2024. "Modeling and evaluating the impact of variable bus lane on isolated signal intersection performance," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 643(C).

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