摘要
为了提高雪天高速公路行车的安全性,利用河北省高速交警总队提供的2008—2012年河北省高速公路交通事故资料,统计分析了雪天交通事故时空分布特征。结果表明:1月分布变化显著,1月、2月和11月、12月为雪天交通事故的高发期,占全年雪天交通事故的87.2%;2空间分布不均匀,京港澳高速以及张家口境内的京藏、张石等高速是雪天交通事故的多发区,占总数的51.1%。基于气象、路面和地形等因素,采用专家评判法,通过分析2008—2012年河北省29个冰雪个例,提出了河北省冰雪天气公路通行条件预警指标和分级标准,检验京沪、京藏高速预警级别准确率分别为73.9%、84.2%。该指标体系为河北省交通行业气象服务及防灾减灾提供了参考。
In order to ensure the security of expressway driving in snow weather, by using the expressway traffic accident data of 2000 to 2012 over Hebei Province which from the Hebei Province Expressway Traffic Police Corps, the spatial and temporal distributions of traffic accidents in snow weather are analyzed statistically. The results show that： （1） The changes of the monthly distribution were significant, and the high incidences of traffic accidents in snow weather occurred in January, February, November and December, which account for 87.2% of the traffic accidents in snow weather in all the year. （2） There was uneven spatial distribution. The high-frequency accident spots of expressway in snow weather appeared in Expressway G4, G6, S010, etc., in Zhangjiakou region, in which the traffic accidents account for 51. 1% of the total traffic accidents in snow weather. Based on the factors such as meteorological, road surface, terrain, etc., using the expert judgment method, through analyzing 29 traffic accident cases in snow weather from 2008 to 2012, the early warning indicators and the classification standards for expressway traffic in ice and snow weather in Hebei Province are proposed, and the warning accuracy rate of grade index reaches 73.9%, 84.2% in G2 and G6, respectively. The indexes provide references for meteorological services and disaster prevention and mitigation.
出处
《气象科技》
北大核心
2016年第2期331-335,共5页
Meteorological Science and Technology
基金
河北省科技厅项目“灾害性天气条件下高速公路通行管理技术研究”(12275405)
河北省科研项目“恶劣天气行业气象服务信息库及服务规范研究”(12ky21)共同资助
关键词
公路运输
交通事故
冰雪天气
预警指标
highway transportation
road accident
snow and ice weather
early-warning index
