摘要
本文以高速公路为区划对象,利用2004—2013年浙江省68个气象站常规观测资料、基础地理信息数据、社会经济数据及交通事故数据,采用Arc GIS空间分析技术、加权综合评价法和层次分析法等方法,从致灾因子、承灾体及历史高速公路交通事故发生特征3个方面,构建了浙江省高速公路风险区划指标体系,并对浙江省高速公路低温雨雪冰冻灾害进行了评估与风险区划。结果表明:浙江省高速公路可划分为高、较高、中等、较低和低风险5个等级;高风险区路段占浙江省高速公路总长的13.49%,主要分布在杭景新高速建德段、杭瑞高速杭州至临安段、沪渝高速湖州段、申嘉湖高速湖州段、练杭高速德清至余杭段、长深高速杭州市段及湖州至余杭段、杭金衢高速衢州段、诸永高速东阳至磐安段、台金高速缙云段。高速公路低温雨雪冰冻灾害风险区划结果可为公路管理部门防灾减灾工作提供科学参考。
Highway was taken as the division object in this paper. Based on the conventional observation data from68 weather stations in Zhejiang province and combined with the geographic information, social and economic,and traffic accident data, the risk assessment index sets were established on the basis of the analysis of disaster-causing factors, risk exposure index and characteristics of traffic accidents on highway from 2004 to 2013. The risk division and assessment of low-temperature, rain/snow and freezing disasters on highway in Zhejiang province were performed using methods of ArcGIS spatial analysis technique,weighted comprehensive evaluation and hierarchy analysis.The results show that it is divided into five categories of risk,i. e.,higher, sub-high,medium, inferior and lower risks on highway in Zhejiang province. The higher risk road length accounts for 13. 49% of the total value.The higher risk sections are mainly located in Hang-Jingxin highway Jiande,Hang-Rui highway from Hangzhou to Lin＇an,Hu-Yu highway Huzhou,Shen-Jiahu highway Huzhou,Lian-Hang highway from Deqing to Yuhang,Chang-Shen highway Hangzhou city and from Huzhou to Yuhang,Hang-Jinqu highway Quzhou,Zhu-Yong highway from Dongyang to Pan＇an,and Tai-Jin highway Jinyun ones. This study provides a scientific reference for the highway management department to prevent and mitigate disasters.
出处
《气象与环境学报》
2016年第3期102-106,共5页
Journal of Meteorology and Environment
基金
浙江省科技厅公益性技术研究重点项目(2014C23003)
浙江省气象局重点项目(2013ZD08)
浙江省交通厅项目(2013H27-1)共同资助
