Zoning of Dangerous and Mountainous Hillsides of the Roads Located on Gharanghoo Chai Basin (Eastern Slopes of Sahand Mountain Range)

Roads are living constituents of the rural residents in mountainous areas, whose health is largely dependent on these lodes. Based on the magnitude of their risks, there is a need to study and classify these elements. Risks such as landslides, toppling, and the like sometimes make roads in rural parts of mountainous areas hazardous. Gharanghoo Chai basin as the largest living concentration in the area has attracted many people in rural structure. The connection between these villages is done through the roads that cross steep mountainous passages. We have tried in this paper to study the rockfall risk susceptibility of connecting roads in the area, and categorize the risk levels of geomorphic factors by means of the application of ArcView Software.