高速公路山风过境路段雨天可变限速控制方法

发布时间：2019-06-14 10:21

【摘要】：降雨对山区高速公路山风过境路段行车安全及通行效率具有较大负面影响.为保证山区高速公路山风过境路段雨天行车安全,提高路段通行效率,减少风雨综合作用的不利影响,文中设计了山区高速公路山风过境路段雨天可变限速控制系统的总体方案,构建了风雨综合作用下的基于防侧滑和安全停车视距的安全车速计算模型,并以控制监控时段内车辆平均行程时间最小为目标,建立了山区高速公路山风过境路段雨天可变限速控制评价模型.结合实际道路、气象数据,利用Matlab软件进行数值仿真计算,结果表明,与固定限速方式相比,文中建立的可变限速控制方法在保障雨天环境下山区高速公路山风过境路段行车安全的同时,提高了车辆的运行效率.
[Abstract]:Rainfall has a great negative effect on the safety and efficiency of the traffic safety and the passing efficiency of the mountain wind transit section of the mountain area. in ord to ensure that traffic safety of the mountain wind transit section of the mountain area on the rainy day, the traffic efficiency of the road section is improved, the adverse effect of the comprehensive effect of the wind and rain is reduced, the general scheme of the variable speed limit control system in the rainy day of the mountain wind transit section of the mountain area is designed, The safety vehicle speed calculation model based on the anti-slip and safe stopping sight distance under the combination of wind and rain is constructed, and the average travel time of the vehicle in the control monitoring period is the minimum, and the variable speed limit control evaluation model for the rainy day of the mountain wind transit section of the mountain area is established. Based on the actual road and the meteorological data, the numerical simulation is carried out by using the Matlab software, and the results show that the variable speed limit control method established in this paper, compared with the fixed speed limit mode, can guarantee the traffic safety of the mountain wind transit section of the mountain area under the environment of the rainy day, And the operation efficiency of the vehicle is improved.
【作者单位】：华南理工大学土木与交通学院;
【基金】：国家自然科学基金资助项目(51378222,51578247) 广东省科技计划项目(2013B010401009) 广东省自然科学基金资助项目(2016A030310427) 广东省公益研究与能力建设项目(B2161520)~~
【分类号】：U491

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