基于博弈论的高速公路互通立交安全视距研究
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中铁长江交通设计集团有限公司

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U491

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重庆市重点科研项目(cstc2019jscx-tjsbX0011)


Study on Safe Sight Distance of Freeway Interchange Based on Game Theory
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Chongqing Jiaotong University

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    摘要:

    为提高高速公路互通立交合流区通行效率,降低合流区车辆冲突,以高速公路互通立交匝道合流区域车辆为研究对象,提出一种基于博弈论的高速公路匝道合流区安全视距优化方法,通过分析主线与匝道车辆驾驶人在合流区域的驾驶行为以及在合流区车辆运行特征,构建主线与匝道车辆合流过程的收益函数,以通行效率最大为控制目标求解纳什均衡状态,利用仿真软件(VISSIM 4.3)验证优化视距后合流区域主线和匝道行程时间分别缩短5.26%和17.65%,延误时间分别降低17.65%和32.88%,车辆轨迹分析结果表明,追尾冲突数量降低23.09%,换道冲突数量降低29.05%。可见视距优化后能有效减少互通立交匝道合流区域内的冲突。

    Abstract:

    In order to improve the traffic efficiency and reduce the vehicle conflict in the confluence area of freeway interchange, taking the vehicles in the confluence area of freeway interchange ramp as the research object, an optimization method of safe sight distance in the confluence area of freeway ramp based on game theory is put forward in this paper. By analyzing the driving behavior and running characteristics of drivers of main line and ramp vehicles in the confluence area, the profit function of the confluence process of main line and ramp vehicles is constructed and the Nash equilibrium state is solved with the maximum traffic efficiency as the control objective. The simulation software (VISSIM 4.3) is used to verify that the travel time of main line and ramp in confluence area is shortened by 5.26% and 17.65%, and the delay time is reduced by 17.65% and 32.88%, respectively. The results of vehicle trajectory analysis show that the number of rear-end collisions and lane-changing conflicts are reduced by 23.09% and 29.05%, respectively. It is concluded that the optimization of the viewing distance can effectively reduce the conflict in the confluence area of the interchange ramp.

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许文星,章玉. 基于博弈论的高速公路互通立交安全视距研究[J]. 科学技术与工程, , ():

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  • 收稿日期:2021-04-22
  • 最后修改日期:2021-08-16
  • 录用日期:2021-08-17
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