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作为交通事故易发路段,高速公路爬坡路段的交通安全问题已引起广泛关注。以宁杭高速公路东庐山段为例,通过对该爬坡路段2006年1月～2010年7月的交通事故资料的统计,从事故地点、事故时段、事故形态和事故车型等方面分析了爬坡路段交通事故的主要特征。研究发现:高速公路爬坡路段发生交通事故的风险要远大于下坡及其他路段;事故多发生在直坡段的中后部和竖曲线段,坡道后段的安全性更低;事故形态主要是追尾、撞护栏和撞固定物,而且重特大交通事故中追尾事故比例大;夜间的事故率和严重程度高于白天,尤其是凌晨2:00～6:00为重特大交通事故高发期;爬坡路段大货车和小客车相互干扰严重,是爬坡路段交通事故的主要车型。研究结果可为高速公路爬坡路段交通安全的改善提供依据。
As a traffic accident prone road section, highway traffic safety problems have aroused widespread concern. Take the East Lushan section of Nanjing-Hangzhou Expressway as an example, this paper analyzes the accident data of the climbing section from January 2006 to July 2010, and analyzes the factors of accident location, accident period, accident patterns and accident models The main features of traffic accidents on slopes. It is found that the risk of traffic accidents on the hill-climbing section of the expressway is far greater than that of the downhill and other sections. The accidents occur mostly in the middle and back part of the straight section and the vertical curve section, and the safety of the rear section of the ramp is lower. Mainly the rear-end, crash barriers and hit the fixed object, but also a large proportion of rear-end accidents in major traffic accidents; night accident rate and severity higher than during the day, especially in the morning 2: 00 ~ 6: 00 for the major traffic accidents period ; Climbing section of large trucks and passenger cars each other serious interference, is the main section of road accidents climbing. The research results can provide the basis for the improvement of traffic safety in the highway climbing section.