摘要
为了有效解决防眩板统一高度在特定条件下存在的交通安全隐患,通过对平曲线路段防眩板高度的遮光效果和影响因素进行分析,构建了平曲线路段防眩板高度的验算模型。研究了防眩板高度对交通安全的敏感性,对防眩板静视距和行车动视距进行了比较分析,提出了防眩板高度对不同线形路段交通安全影响的关键参数(静视距和动视距差值ΔL),并结合示范路段进行模拟仿真验证。研究结果表明:平曲线路段防眩板高度与路段的横断面形式、交通组成和线形条件有着直接关系;不同的防眩板高度影响着不同车辆的安全行驶速度和安全行驶区域。
In order to avoid certain traffic hazards caused by anti-glare plates with uniform height, it is necessary to analyze the shading effect and impact factors of anti-glare plate height on the horizontal curved sections. Checking model for anti-glare plate height was constructed on the hor izontal curved sections. The sensitivity of traffic safety affected by anti-glare plate height was re- searched. By comprehensive analysis and comparison between the static visual range and moving visual range on the horizontal curved sections, key parameter （the difference AL between the static visual range and moving visual range） for anti-glare plate height impact on traffic safety, the different linear sections was put forward. Combined with demonstration section, it was simu- lated and verified for the traffic safety. The results show that anti-glare plate height has a direct relationship with cross-section form, traffic composition and linear conditions~ different anti-glare plate heights affect safety speeds and safety zones for different cars. 4 tabs, 4 figs, 8 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第1期90-94,共5页
Journal of Chang’an University(Natural Science Edition)
基金
天津市市政设计研究院科技项目(2011-29)
关键词
交通工程
高速公路
防眩板高度
模型
交通安全
安全速度
安全区域
traffic engineering
expressway
anti-glare plate height
model
traffic safety
safetyspeed
safety zone
