低等级公路路侧全改善技术研究.pdf

Study on the Technology of Low-grade roadside safety A Dissertation Submitted for the Degree of Master Candidate：Zhang Hanlin Supervisor：Prof. Peng Bo Chang’an University, Xi’an, China 摘 要 近年来我国对低等级公路路侧安全重视程度有所加强，新修建的公路路侧安全设施 已达到安全要求，但大量以前建设并运营的公路路侧安全隐患依旧存在，导致路侧事故 频发，严重影响人民生命财产安全，对现有道路路侧进行安全改善已成为我国现阶段亟 待解决的重大问题。 论文在参考国内外研究成果的基础上，结合我国路侧安全现状，以国道324 汕尾段 为例，根据汕尾段路侧安全问题提出了一种合理的路侧安全优化设计方法，在改善道路 安全现状的同时减少资金的浪费。 在进行路侧安全优化时，论文针对我国在路侧优化设计时主要存在的三个问题，即 公路路侧黑点问题、外国先进技术应用问题、优化方案的最终决策问题，提出解决办法。 论文在对国道 324 汕尾段进行优化设计时施行先重点突破再总体设计的原则，在黑点问 题上运用灰色评价思想对路段黑点进行排查，将选出的危险路段作为重点分级进行优 化，从而解决了路段黑点问题；安全优化技术运用时针对我国路侧安全问题的现状和特 点，提出一套符合我国国情的安全防护方法，并在路段设计时加以应用；优化方案选取 时运用模糊综合评价法，对优化方案进行全方位、多角度的综合评价，进而选出最优设 计方案进行施工，从而解决社会资源的浪费问题。最后再以汕尾段 K881+500～K886+324 为示范工程进行优化设计。 关键词：交通事故 路侧危险等级 路侧安全设施 路侧安全防护 i Abstract In recent years, China has been enhanced low-grade road roadsides safety emphasis, the newly built highway roadside safety facilities had achieved safety requirements, but a number of the highway roadsides which are previous constructed still have safety hazards, leading to frequent roadside accidents, and serious impacts on peoples lives and property safety. Therefore, and safety improvements on existing roads roadside has become an urgent need to address the major issues of our country at this stage. Based on the previous research and combine with roadside safety status in China, this paper will put State Road 324 Shanwei segment as an example , to propose a reasonable roadside safety optimized design method in order to improve road safety status and reduce the waste of funds. As to optimiz