西南交通大学学报2023，Vol.58Issue(6)：1286-1293,8.DOI:10.3969/j.issn.0258-2724.20211079
雨天沥青路面能见度影响因素分析
Influencing Factors of Asphalt Pavement Visibility on Rainy Days
摘要
Abstract
Under the condition of rainfall,the water spray splashed by the tires of vehicles during driving can easily form water mist,and the visibility in front will be significantly reduced.The subjective recognition distance of the human body will be rapidly reduced,and even the wrong judgment of driving distance will lead to traffic accidents.Therefore,it is of great significance to study the influencing factors of asphalt pavement visibility on rainy days.Based on Mie's theory,the meteorological definition of visibility was utilized,and Monte Carlo numerical simulation was performed with MATLAB software.In addition,a visibility calculation model is put forward characterized by vehicle speed,water film thickness,and pavement design parameters and then analyzed the influencing factors of visibility.The results show that on rainy days,when the water film thickness of asphalt pavement is less than 5.873 mm,the visibility caused by water mist will decrease with the increase in vehicle speed and water film thickness;among the pavement design parameters,the length of drainage path and the depth of pavement structure are positively correlated with visibility,and there is a negative correlation between road slope and visibility.It is found that the visibility reaches the minimum when the water film thickness is 5.873 mm;an improved calculation model of asphalt pavement visibility characterized by rainfall intensity,depth of pavement structure,pavement slope,length of drainage path,and vehicle speed is proposed.关键词
能见度/交通安全/沥青混凝土/蒙特卡罗模拟/路面Key words
visibility/traffic safety/asphalt concrete/Monte Carlo simulation/pavement分类
交通运输引用本文复制引用
汪敏,何兆益,周文,梁昕..雨天沥青路面能见度影响因素分析[J].西南交通大学学报,2023,58(6):1286-1293,8.基金项目
国家自然科学基金(51978116) （51978116）
交通运输部行业重点科技资助项目(2018-TG-003) （2018-TG-003）
