平原区等级公路接入口安全影响分析研究

Research on Safety of Classified Highway Accesses in Plain Area

针对平原区等级公路复杂的交通环境与接入口密集程度比较高有关,且接入口相关的事故比例也较高的情况,进行了平原区接入口对安全影响特性的系统研究。本研究收集了大量平原区公路的道路和年交通事故、交通组成等数据信息,对平原区公路接入口对安全的影响情况进行了量化研究,包括双车道公路接入口安全影响性研究和四车道公路接入口安全影响性研究,分析指标包括针对事故率的分析和死亡率的分析。分析结果表明接入口对安全的影响呈现出分段规律性。

The complicated traffic environment of classified highways in plain area is associated with higher access density, and the accident proportion in accesses in plain area is higher than that in mountain area. The influence of access density of highways in plain area on traffic safety was researched systematically. Large number of data such as road data, accident data and traffic composing information were collected for quantitative analysis of safety influence, including the research of the accident rate and the death rate of two-lane highways and four-lane highways. As the result, the accesses influence the traffic safety sectional regularly.