高速公路可变限速控制策略安全性效果仿真

李志斌; 刘攀; 单肖年; 王炜

doi:10.3969/j.issn.0258-2724.2013.05.025

高速公路可变限速控制策略安全性效果仿真

doi: 10.3969/j.issn.0258-2724.2013.05.025

基金项目:

国家道路交通安全科技行动计划资助项目(2009BAG13A07-5)

国家重点基础研究发展规划资助项目(2012CB725400)

国家高技术研究发展计划资助项目(2012AA112304)

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出版历程
- 收稿日期: 2012-08-08
- 刊出日期: 2013-10-25

Simulating Impacts of Variable Speed Limits on Traffic Safety on Freeways

摘要

摘要: 为了减少高速公路常发交通瓶颈上游路段运动波传播引发的追尾事故,在分析PARAMICS微观仿真模型的基础上,建立了可变限速控制仿真平台,在高速公路入口匝道交通瓶颈仿真路段,采用事故预测模型定量研究路段内冲击波传播过程中追尾事故的实时风险,提出了减少事故发生概率可变限速控制策略.结果表明:减少事故风险效果最好的控制策略是将阈值设置为预测事故概率等于0.25,限速值变化周期为120 s,限速值降低幅度为20 km/h,恢复幅度为10 km/h,相邻路段限速值差为20 km/h.采用可变限速最优控制策略后,高速公路瓶颈上游路段追尾事故风险降低了20%.
- 交通运输工程 /
- 可变限速 /
- 交通安全
Abstract: To reduce the occurrence of rear-end collisions during the propagation of kinematic waves in freeway section upstream of a recurrent bottleneck, a simulation platform for variable speed limits (VSLs) was developed using the PARAMICS microscopic simulation model. The simulation network is a freeway section containing an on-ramp bottleneck. A crash prediction model was adopted to quantify the real-time rear-end collision risks accompanying the propagation of kinematic waves in the section upstream of the on-ramp bottleneck. Control strategies for VSLs were proposed to reduce the collision potential. Results show that the optimal strategy to reduce collision risk is that the startup threshold of collision probability is set to 0.25, time step for VSL change to 120 s, speed step for reduction to 20 km/h, speed step for recovery to 10 km/h, and difference between adjacent speed limit signs to 20 km/h. Using the optimal control strategy for VSLs, the rear-end collision risk in the freeway section upstream of the recurrent bottleneck is reduced by 20%.
- engineering of communication and transportation /
- variable speed limits /
- traffic safety

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参考文献(19)

ABDEL-ATY M, DILMORE J, DHINDSA A. Evaluation of variable speed limits for real-time freeway safety improvement[J]. Accident Analysis and Prevention, 2006; 38: 335-345.

ABDEL-ATY M, DILMORE J. Coordinated use of variable speed limits and ramp metering for improving safety on congested freeways[C]//86th Annual Meeting Transportation Research Board. Washington D C: National Academies, 2007: 1-17.

ABDEL-ATY M, CUNNINGHAM R J, GAYAH V V, et al. Dynamic variable speed limit strategies for real-time crash risk reduction on freeways[J]. Transportation Research Record, 2008, 2078: 108-116.

LEE C, HELLINGA B, SACCOMANNO F. Assessing safety benefits of variable speed limits[J]. Transportation Research Record, 2004, 1897: 183-190.

LEE C, HELLINGA B, SACCOMANNO F. Evaluation of variable speed limits to improve traffic safety[J]. Transportation Research Part C, 2006, 14(3): 213-228.

ALLABY P, HELLINGA B, BULLOCK M. Variable speed limits: safety and operational impacts of a candidate control strategy for freeway applications[J]. IEEE Transactions on Intelligent Transportation Systems, 2007, 8(4): 671-680.

HELLINGA B, MANDELZYS M. Impact of driver compliance on the safety and operational impacts of freeway variable speed limit systems[J]. Journal of Transportation Engineering, 2011, 137(4): 260-268.

BHOWMICK A, QIU T Z, HADIUZZAMAN M. Driver compliance analysis of variable speed limit based freeway traffic control[C]//Proceedings of the 11st International Conference of Chinese Transportation, Beijing:American Society of Civil Engineers, 2011: 4181-4192.

干宏程,孙立军. 高速公路可变限速控制技术研究[J]. 交通科技,2004,6: 91-93. GAN Hongcheng, SUN Lijun. A study on the variable speed limits technology for freeways[J]. Transportation Science & Technology, 2004, 6: 91-93.

徐婷,孙小端,贺玉龙,等. 高速公路可变限速中大车混入因素研究[J]. 交通信息与安全,2009,27(2): 70-72. XU Ting, SUN Xiaoduan, HE Yulong, et al. Mixed rate of large vehicles in expressway variable speed limit[J]. Journal of Transport Information and Safety, 2009, 27(2): 70-72.

姚宏伟. 高速公路可变限速系统社会经济影响评价. 博士学位论文.长春:吉林大学,2004.

史桂芳,袁浩,程建川. 雾天交通限速计算[J]. 西南交通大学学报,2010,45(1): 136-139. SHI Guifang, YUAN Hao, CHENG Jianchuan. Calculation of speed limit on foggy days[J]. Journal of Southwest Jiaotong University, 2010, 45(1): 136-139.

PARK B, YADLAPATI S S. Development and testing of variable speed limit logics at work zones using simulation[C]//82nd Annual Meeting Transportation Research Board. Washington D C: National Academies, 2003: 1-19.

CARLSON R C, PAPAMICHAIL I, PAPAGEORGIOU M. Local feedback-based mainstream traffic flow control on motorways using variable speed limits[J]. IEEE Transactions on Intelligent Transportation Systems, 2011, 12(4): 1261-1276.

CARLSON R C, PAPAMICHAIL I, PAPAGEORIOU M, et al. Optimal motorway traffic flow control involving variable speed limits and ramp metering[J]. Transportation Science, 2010, 44(2): 238-253.

LU X Y, VARAIYA P, HOROWITZ R, et al. A novel freeway traffic control with variable speed limit and coordinated ramp metering[J]. Transportation Research Record, 2011, 2229: 55-65.

HADIUZZAMAN M, QIU T Z. Cell transmission model based variable speed limit control for freeways[J]. Canadian Journal of Civil Engineering, 2013, 40(1): 46-56.

LI Zhibin, CHUNG K, LIU Pan, et al. Surrogate safety measure for evaluating rear-end collision risk near recurrent bottlenecks//91st Annual Meeting of Transportation Research Board. Washington D C: National Academies, 2012: 1-15.

张美慧,李志斌,陈若昀,等. 基于遗传算法的PARAMICS可变限速仿真参数自动标定[J]. 交通信息与安全,2012,30(5): 130-134. ZHANG Meihui, LI Zhibin, CHEN Ruoyun, et al. Automatic parameter calibration for variable speed limits in paramics simulation model using genetic algorithm[J]. Journal of Transport Information and Safety, 2012, 30(5): 130-134.

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文章访问数: 1030
HTML全文浏览量: 55
PDF下载量: 477
被引次数: 0

高速公路可变限速控制策略安全性效果仿真

doi: 10.3969/j.issn.0258-2724.2013.05.025

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Simulating Impacts of Variable Speed Limits on Traffic Safety on Freeways

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