降雨量对排水沥青路面交通安全的影响  

Effect of precipitation on traffic safety of OGFC pavement

作　　者：魏莘欣 陈华鑫[1] 夏慧芸[1] 

机构地区：[1]长安大学材料学院,陕西西安710061

出　　处：《长安大学学报（自然科学版）》2016年第3期13-18,共6页Journal of Chang’an University(Natural Science Edition)

基　　金：国家自然科学基金项目(51202016);中国博士后科学基金项目(2015M570805);中央高校基本科研业务费专项资金项目(310831151080)

摘　　要：为验证排水沥青路面（OGFC）的雨天交通安全性能,以OGFC路段上的交通事故为研究对象,结合当地的气象资料,对比相邻1段普通沥青混合料路段上的交通事故,分析了在不同降雨量下路面材料对道路交通安全的影响,并通过曲线回归得出研究路段上普通沥青路面和OGFC路面在不同降雨量下的亿车公里事故率预测模型。研究结果表明：对于研究路段而言,当降雨量为10mm以下时,OGFC路面的事故率比普通沥青路面低74%,当降雨量为10.0～24.9 mm时,OGFC路面的事故率比普通沥青路面低50%以上,当降雨量大于50mm时,OGFC路面的事故率比普通沥青路面低85%以上。此外,对于不同事故类型,在OGFC路段上发生的雨天追尾事故数比普通路段低33%以上;在OGFC路段上发生的雨天侧面刮碰事故数比普通路段低40%以上;在OGFC路段上发生的雨天撞固定物事故数比普通沥青路段低50%以上。In order to study the traffic study of OGFC pavement under adverse weather,this paper chose a road segment of OGFC as research subject,compared its traffic crash rate with that of common asphalt pavement according to local meteorological data,and analyzed the effect of different pavement materials on traffic safety under different precipitation.Based on this,the prediction model of the studied road segment based on precipitation of common asphalt pavement and OGFC pavement was developed.The results show that OGFC pavements can decrease more than 74% of crash rate when precipitation is below 10 mm.At the same time,OGFC pavements can reduce more than 50%crashes compared to common asphalt pavement when the precipitation is between 10-24.9 mm.It is also observed that OGFC pavements have less than 85% crashes compared with common asphalt pavement when precipitation is above 50 mm.In term with crash type,OGFC pavement can decrease more than 50%,40%,30% of the no-collision crashes,rearend and side swipe collisions,respectively.4tabs,5figs,20 refs.

关 键 词：道路工程 山区高速公路 事故率 事故预测 OGFC路面 降雨量 

分 类 号：U414[交通运输工程—道路与铁道工程]