广南高速公路道路封闭与不良气象条件的相关性研究
2020-03-08周子钦卢德全孙雷果
周子钦 卢德全 孙雷果



摘 要:交通运输与气象因素之间存在较为密切的关系。为深入了解不良气象条件对广(元)南(充)高速公路道路封闭的影响程度,本文基于2013—2018年广南高速公路的道路封闭数据,统计分析了区域内高速道路封闭的次数、诱因、变化特征,同时利用高速道路封闭事件发生时的天气要素特征进行了统计对比分析。结果表明,每年的10月到次年2月是高速道路封闭事件的高发期,每日的清晨至上午是高速道路封闭事件的高发时段。高速道路封闭事件与大雾、降水(积水)、降雪(积雪)和道路结冰等不良气象条件存在高度相关性。
关键词:广南高速;不良气象条件;道路封闭;变化特征;相关性
中图分类号:P49文献标识码:A文章编号:1003-5168(2020)35-0146-04
Abstract: There is a close relationship between transportation and meteorological factors. In order to understand the impact of adverse weather conditions on the road closure of Guangyuan-Nanchong Expressway, based on the road closure data of Guangyuan-Nanchong Expressway from 2013 to 2018, this paper statistically analyzed the number of expressway closures in the region, incentives, and change characteristics, and used the weather element characteristics when the highway closure event occured to carry out a statistical comparative analysis. The results show that every year from October to February of the following year is the high-incidence period of highway closure incidents, and the dawn to morning is the high-incidence period of highway closure incidents. High-speed road closure events are highly correlated with adverse weather conditions such as heavy fog, precipitation (water accumulation), snowfall (snow accumulation) and road icing.
Keywords: Guangyuan-Nanchong Expressway;adverse weather conditions;road closure;change characteristics;correlation
我国高速公路发展迅猛,已经构建完善的全国高速公路网。雨、雪、雾等不良气象条件会对高速公路正常运行带来巨大影响,大雾、降水、降雪和路面结冰等不良通行环境条件还将导致交通事故频繁发生。目前,国内在不良气象条件下的道路交通管理研究与应用还处于起步阶段,主要是借鉴国外早期技术经验,即加强道路沿线气象环境监测,并通过可变信息标志等电子标牌进行信息发布。近年来,高速公路公司与属地气象部门的合作日益密切,高速公路沿线气象预报预警与专业化服务方面有所进展。本文基于2013—2018年四川广南高速公路有限责任公司(下称广南高速公司)收集的道路封闭数据以及对……
