山区公路平曲线路段动态限速与预警方案  

Dynamic Speed Limit and Warning Program on Horizontal Curve Section of Mountain Highway

作　　者：方勇[1] 李志勇[2] 岳志平[2] 郭忠印[1] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]湖南省交通科学研究院,湖南长沙410015

出　　处：《公路工程》2012年第4期1-5,19,共6页Highway Engineering

基　　金："十一五"国家科技支撑计划(2009BAG13A02);西部交通建设科技项目(2009318785009)

摘　　要：为了提高山区公路平曲线路段的行车安全性,从几何线形指标、路面状况条件与车辆动力学分析推导出临界侧滑速度与纵向行驶临界安全速度计算公式。将临界车速作为安全行驶的约束条件,提出不同路面状况、能见度条件与交通环境下动态限速值计算方法与行车安全控制标准,并考虑到驾驶员接收速度预警信息后驾驶操作过程,从预警设备组合、工作流程与对策3方面提出速度预警方案。研究成果可为山区公路交通安全预警技术提供支持。In order to improve the driving safety of mountain-highway horizontal-curve section, the critical sideslip speed and critical longitudinal-driving safety speed was formulated based on the analysis of geometry line indexes, pavement conditions and vehiele dynamics. With critical speed as a constraint of safety driving, the dynamic speed calculate method and safety speed control standard were proposed under various pavements, visibilities and traffic environments. Considering the driving operation after receiving speed warning information, the speed warning program was proposed based on warning facility combination, work procedure and solutions. The results can be applied in mountain-highway traffic safety warning.

关 键 词：山区公路 平曲线路段 动态限速 速度预警 行车安全控制标准 

分 类 号：U491.4[交通运输工程—交通运输规划与管理]