Analyzing the role of climatic factors on road accidents (case study: ardabil-parsabad road in Ardabil province, Iran)

Road accidents and their fatalities are among the current challenges human society facing, which in turn resulting in huge social and economic costs on the countries. The developing countries are the biggest victims of the road accidents such that in these countries, road accidents are considered as the major cause of death. Unfortunately, Iran is among the countries in which the rate of road accidents is high. Among the driving factors that affect road safety and transport is climate. Ardabil-Parsabad road in Ardabil province is one of the roads many accidents have been occurred during years, and this trend began when the number of cars increased resulted in huge road deaths in 1990s. In this study, data has been used from four meteorological stations in Ardabil, Samian, Meshkin-Shahr and Parsabad, over a period of5years(2008-2002).For this purpose, several climatic elements were collected including the average daily temperature, average of minimum temperatures, average of maximum temperatures, the number of snowy days, the number of frost days, starting glacial period, duration of the snowfall, duration of the glacial period, total average humidity and moderate precipitation, average of sunny hours, average number of foggy days, the average number of windy days. This analysis is provided using Excel software in the Arc GIS environment of continuous levels of these parameters in the region.