Simulation Study for Truck Restriction Strategies on Jingzang Expressway in Beijing

doi:10.16182/j.issn1004731x.joss.201710026

Abstract

Abstract: Lane restriction strategy for trucks is an effective way to improve the capacity of expressways and ease traffic congestion. Microscopic simulation models were employed to assess the impacts of restriction strategies and truck accidents on expressway traffic condition. Parameters were calibrated and validated based on the field data of Jingzang Expressway. Five simulation scenarios with different time setting for trucks' no passing were established, and evacuation after truck accident was simulated. Simulation results indicate that the most suitable time for trucks' no passing is from 7:00 to 19:00. The travel time of small passenger cars can be reduced by 10%, and all the trucks can be evacuated from the expressway before 8:00. The other scenarios can lead to trucks' retention, affecting the traffic conditions in the morning peak hours of the next day. Truck accidents could result in the delayed vehicles' lining along the expressway.

Key words: microscopic simulation model, traffic safety, truck restriction strategies, accident, expressway

CLC Number:

TP391.9

Yang Senyan, Wu Jianping, Liu Mingyu, He Lei. Simulation Study for Truck Restriction Strategies on Jingzang Expressway in Beijing[J]. Journal of System Simulation, 2017, 29(10): 2432-2440.

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