Research on a work zone model with metering zone under mixed traffic flow environment

Jun Liu, Qi-Lang Li, Ding-Jun Fu and Bing-Hong Wang
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Jun Liu: School of Mathematics and Physics, Anhui Jianzhu University, Hefei 230601, P. R. China
Qi-Lang Li: School of Mathematics and Physics, Anhui Jianzhu University, Hefei 230601, P. R. China
Ding-Jun Fu: ��Intelligent Transportation Systems Research Center, Wuhan University of Technology, 430063 Wuhan, P. R. China
Bing-Hong Wang: ��Department of Modern Physics, University of Science and Technology of China, 230026 Hefei, P. R. China

International Journal of Modern Physics C (IJMPC), 2024, vol. 35, issue 11, 1-21

Abstract: In the upstream of the highway work zone, vehicles will change lanes automatically or forcibly, which has complexity and randomness. Most studies fail to consider the impact of actual mixed traffic characteristics on traffic flow. For example, the dependence of the lane-changing behaviors of Connected and Automated Vehicles (CAVs) on the length of the zone is ignored in upstream of work zone. In addition, it is assumed that vehicles in the merge lane of the work zone would “yield†or not consider an impact on vehicles in the through lane. This simplifies the complex dynamics of the interaction between the two streams of traffic, which leads to the results of the study and the actual situation inconsistency. Based on the Gipps model, the adaptive cruise control (ACC) and the collaborative adaptive cruise control (CACC) vehicle-following models, this paper proposes a continuous cellular automata model under Vehicle-Road Collaboration and studies the mixed traffic flow characteristics in the work zone. By setting a metering zone before the lane reduction sign, ACC/CACC can adjust headway by obtaining road information in advance. The simulation results indicate that ACC/CACC vehicles have better following response compared to human-driven vehicles. In other words, the platoon composed of ACC/CACC vehicles has stability and can improve the traffic capacity of the work zone. The results of the study also found that the insertion of vehicles from adjacent lane into the ACC/CACC vehicles platoon is detrimental, especially when the penetration rate (Pinter) is high. Furthermore, when the length of the metering zone (Lmeter) is set at 120–150m, it can significantly improve the road congestion in the work zone.

Keywords: Mixed traffic flow; work zone; cellular automata; metering zone (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1142/S0129183124501407

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