Z. Can, Wang Hong, LU Hua, Zhu Shunying, Xiao Wenbin
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引用次数: 1
Abstract
Currentlyꎬ when static edge rate is used for vehicle speed controlꎬ cycle length of edge rate period and total length of pavement corresponding to all vehicle speeds are fixedꎬ so it is not well ̄targeted and achieves no obvious effects in speed reduction. In order to make up for this defectꎬ a dynamic speed control edge rate model for tunnel segment was established with minimum vehicle speed dispersion as objective function based on the positive correlation between accident rate and vehicle speed dispersion. Thenꎬ speed control system of dynamic edge rate was installed in central section of long tunnel on expressways for intelligent linkage studies between dynamic edge rate and traffic flow. Finallyꎬ vehicle speeds with or without control system of dynamic edge rate were compared and analyzed. The results show that speed control system based on dynamic edge rate model for tunnel sections can effectively control it with overspeed ratio decreasing by 16 69%ꎬ 85 percentile speedꎬ average speed and speed standard deviation decrease by 6 67%ꎬ 7 96% and 13 45% respectivelyꎬ and its control effect is more remarkable than that of static edge rate.
期刊介绍：
China Safety Science Journal is administered by China Association for Science and Technology and sponsored by China Occupational Safety and Health Association (formerly China Society of Science and Technology for Labor Protection). It was first published on January 20, 1991 and was approved for public distribution at home and abroad.
China Safety Science Journal (CN 11-2865/X ISSN 1003-3033 CODEN ZAKXAM) is a monthly magazine, 12 issues a year, large 16 folo, the domestic price of each book is 40.00 yuan, the annual price is 480.00 yuan. Mailing code 82-454.
Honors:
Scopus database includes journals in the field of safety science of high-quality scientific journals classification catalog T1 level
National Chinese core journals China Science and technology core journals CSCD journals
The United States "Chemical Abstracts" search included the United States "Cambridge Scientific Abstracts: Materials Information" search included
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