青海省G06高速公路气象条件危险区划研究

Study on Meteorological Condition Risk Zoning of G06 Expressway in Qinghai Province

笔者研究了青海省G06高速公路沿线不同气象条件的时间特征,并运用GIS技术分析了不同气象条件的空间特征,运用层次分析法(AHP)确定不同气象条件的权重系数,最后制作了综合危险区划图。结果表明:同一路段不同的气象条件在时间、空间上有一定的规律,利用层次分析法得出不同气象条件的权重系数值,由权重系数的大小可知影响青海省G06高速公路的气象条件依次为:积雪、降雪、降雨、能见度、风,从综合危险性区划得出:高危险区、较高危险区在德马高速果洛路段、西丽高速果洛和玉树路段,中危险区在京藏高速海西东路段、德马高速海西东南方向路段、西丽高速海南西南路段、张汶高速海北方向,其余为低危险区、较低危险区。

The author studies the time characteristics of different meteorological conditions along the G06expressway in Qinghai Province,and analyzes the spatial characteristics of different meteorological conditions by using GIS technology,and then uses AHP to determine the weight coefficients of different meteorological conditions,finally,a comprehensive hazard zonation map is made.The results show that different meteorological conditions in the same road section have certain regularity in time and space,and then the weight coefficient values of different meteorological conditions are obtained by using analytic hierarchy process,according to the weight coefficient,the weather conditions affecting the G06 highway in Qinghai Province are snow,snow,rain,visibility and wind,from the comprehensive risk area,the high risk area is drawn in the section of Golog Tibetan Autonomous Prefecture,Xili Subdistrict,Shenzhen,Guoluo and Yushu,the middle danger zone is in the east-west section of beijing-tibet Expressway,the southeast-west section of Dema Expressway,the southwest-hainan section of Xili Subdistrict,Shenzhen Expressway and the north-sea section of Zhangwen expressway.