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Journal of Shanghai University >

2020 , Vol. 26 >Issue 4: 595 - 605

DOI: https://doi.org/10.12066/j.issn.1007-2861.2107

Cellular automaton model for U-turn vehicles at T-crossing

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  • 1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
    2. Department of Aeronautics and Astronautics, Fudan University, Shanghai 200433, China
    3. Shanghai Key Laboratory of Mechanics in Energy Engineering, Shanghai 200072, China
    4. National Engineering Laboratory For Surface Transportation Weather Impacts Prevention, Broadvision Engineering Consultants Co., Ltd., Kunming 650200, China

Received date: 2018-09-26

  Online published: 2020-09-03

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Abstract

Based on the left part of the T-crossing, this paper establishes a two-way, six-lane road system and studies the two cases whereby the U-turn lane is located in the left lane and the middle lane. The straight road and the curved road are divided into cells according to the actual vehicle trajectories, and the traffic lights are introduced at the T-crossing. The simulation is based on the NaSch model. The traffic flow of each lane is counted and analysed. The results show that when the U-turn lane is located in the left lane, it is beneficial to the U-turn vehicles. When the U-turn lane is in the middle lane, it is advantageous for vehicles intending to turn from right to left, but it has a great impact on the traffic flow of the three lanes on the right.

Key words： U-turn movement; cellular automaton; traffic flow; NaSch mode

Cite this article

YUAN Dingqiang, GUO Mingmin, ZHANG Peng, LIN Zhiyang, FANG Rui . Cellular automaton model for U-turn vehicles at T-crossing[J]. Journal of Shanghai University, 2020 , 26(4) : 595 -605 . DOI: 10.12066/j.issn.1007-2861.2107

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