京珠高速公路粤境北段隧道交通事故特性研究

Study on Traffic Accident Characteristics of Tunnel in Northern Guangdong Section of Beijing—Zhuhai Expressway

基于2003—2015年京珠高速粤镜北段7座隧道内发生的350起事故数据,研究了隧道交通事故分布的时空特征以及车型、天气对隧道事故的影响。结果表明:1年中1月、4月、5月、7月—9月为事故频发期,1 d中8:00—10:00为事故高发期;隧道长度与事故数分布关系不显著,而隧道不同区段的事故率与隧道长度相关性明显;事故车型主要为大货车,事故主因多是人为因素。结合数据分析,提出针对性策略,为进一步研究事故发生机理和优化隧道运营方案提供参考。

Based on the data of 350 accidents in seven tunnels of Beijing-Zhuhai Expressway from 2003 to 2015, spatial characteristics of the distribution of traffic accidents in tunnels and the effects of vehicle types and weather on tunnel accidents were studied. The results show that accidents occur frequently in January, relationship between tunnel length and accident number distribution is not significant, but the correlation between accident rate and tunnel length is obvious in different sections of the tunnel. The main types of accident vehicles are large trucks, and the main causes of accidents are mostly man-made factors. Based on the data analysis, the corresponding strategies are put forward to provide reference for further study of accident mechanism and optimization of tunnel operation scheme.