Quasi-Dynamic Traffic Assignment Method Based on Traffic Control Strategy under Freeway Net
Due to the static traffic assignment not describing the dynamic traffic flow of network, and as the intelligent traffic developing, dynamic traffic assignment becomes research hotspot. Traffic control strategy will influence the drivers route choices, so these effects should reflect in the dynamic traffic assignment. Freeway traffic bottleneck section or accident often forms different degree of congestion, according to the different congestion degree and the feedback traffic operation parameters of road traffic detectors, different traffic control strategy is needed, such as ramp control, variable information sign, traffic radio and speed limit, etc. The traffic control strategy will influence the road impedance, which is one of important constraint conditions in dynamic traffic assignment. It establishes a travel cost function considering these factors; and quasi-dynamic traffic assignment model based on the travel cost function is presented. Then, it analyzes the validity and practicability of the model through computer software results.
Freeway Traffic control strategy Traffic assignment Travel cost Simulation analysis
Wang Jianjun Qiu Liping He Qianqian Yang Fashun
Key Laboratory for Special Area Highway Engineering of Ministry of Education, Changan University Xian, Shanxi 710064, China
国际会议
长沙
英文
2129-2132
2010-05-11（万方平台首次上网日期，不代表论文的发表时间）