城市中央隔离栏安全性改善及优化研究

Analysis and Research on Improving Urban Road Central Isolation Guardrail

城市道路中央隔离护栏通常为整体相连式设计,在外力作用下时常发生"连片倒"的现象,这将影响道路的正常通行,并可能引发交通事故.针对道路中央隔离护栏"连片倒"引发的交通事故,提出一种带有自动分离机构的新型单元化隔离护栏优化设计,并从排队长度、行程时间、平均延误、修复时间,以及经济性等方面对比分析,得出新型隔离护栏对车辆通行的影响较小,安全性更高,事故损失小,隔离栏损坏数量少,修复成本低的结论.

Central isolation guardrail of urban road,usually with integral connected designed features,often be contiguous forced down by the external element,which no doubt that adversely affects the traffic or even causes traffic accidents.An optimized design of new unit of an automatic with the isolation guardrail separating mechanism is proposed by this paper based on the accidents caused by the unreasonable designed of the urban road＇s central isolation guardrail.Meanwhile,comparatively analyzing from the aspects of vehicle＇s length of queue,time,average delay time,repair and economic thus,this paper draws a conclusion that the new isolation guardrail may do good for traffic with higher security,small accident damage,less damaged guardrails and lower repair costs.