基于车路协同的交通瓶颈路段车流动态分配机制及模型

doi:10.13229/j.cnki.jdxbgxb.20221374

Abstract

Abstract:

In response to the traffic congestion caused by a large number of lane-changing behaviors in bottleneck sections of expressways， taking the weaving section of expressway as an example， which is a frequency variable area of traffic flow， this paper analyzes the characteristics of vehicle infrastructure cooperation operation， establishes a dynamic assignment model of traffic flow in the bottleneck section， uses C-V2X， edge computing and other technologies， designs a dynamic allocation system of vehicle flow based on vehicle infrastructure cooperation， and studies its operation mechanism. The traffic flow allocation system is simulated and analyzed using MATLAB cellular transmission model. The simulation results show that the optimization effect of the dynamic allocation system is obvious. The traffic time is reduced by about 11.4% in synchronous flow state and 39.7% in congested flow state. The research results are of great significance to reduce the operation delay in the weaving bottleneck area of the expressway and improve the traffic flow efficiency and expressway capacity.

Key words: transportation planning and management, traffic bottleneck, traffic flow characteristics, vehicle infrastructure cooperative system, dynamic traffic allocation

CLC Number:

U491.2

Da-yi QU,Hao-min LIU,Zi-yi YANG,Shou-chen DAI. Dynamic allocation mechanism and model of traffic flow in bottleneck section based on vehicle infrastructure cooperation[J].Journal of Jilin University(Engineering and Technology Edition), 2024, 54(8): 2187-2196.

Figures/Tables 10

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调查地点	交织区长度/m	通行能力/（pcu·h^-1）	交织流量比	车道数
跨海大桥快速路1号交织区	480	4 500	0.30	4
跨海大桥快速路2号交织区	300	4 150	0.11	4
金水快速路1号交织区	400	3 250	0.24	3
杭鞍快速路1号交织区	210	3 080	0.23	3

Dynamic allocation mechanism and model of traffic flow in bottleneck section based on vehicle infrastructure cooperation

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