Preliminary Study of Risk Assessment of the Failure of Road Traffic Caused by Snow Disaster in Guoluo Prefecture

Abstract

The snow disaster is the major natural disaster in northern QingHai plateau which has a significant impact on livestock production.In this paper, by using Guoluo Prefecture of Qinghai province highway network, the data of development of society and economy and the meteorology, ArcGIS software, and the combination of analytic hierarchy process (AHP) method and clustering analysis, the author makes the evaluation of the failure of road traffic caused by snow disaster in 40 townships Guoluo region. By combining the snow disaster risk index and vulnerability index to calculate Guoluo Prefecture snow highway disaster risk index, the author provides scientific reference and basis for the rescue and eliminating road traffic after snow disaster in Guoluo area in order to be of any help for disaster prevention and disaster relief work. The results show that there are 42.5% of towns in Guoluo Prefecture out of the 40 towns with light risk; There are 32.5% of towns with moderate risk; There are 10% of towns with severe heavy risk; There are 15% of towns with heavy risk. Therefore, the author concludes that most of the 40 towns in the research are in light, moderate risk. Partial area risk is heavy.