Abstract:
This article examines the road safety of the studied region (considering environmental hazard parameters) using 1:50,000 topographic maps, 1:250,000 geological maps, 1:250,000 land use maps, and meteorological and hydrometric station statistics. Various tabular and map information layers were overlaid according to spatial distribution, time, and the intensity of hazard effects; then, through a field survey using existing traces and evidence and considering the mentioned information, geological sensitivity, climatic hazards, hydrological hazards, and geomorphological hazard maps were drawn. Finally, by overlaying the three aforementioned maps, the environmental hazard map of the Sanandaj – Marivan communication axis was extracted. Based on it, 65 percent of the length of the considered communication axis passes through very high-risk points, 25 percent through high-risk points, and 10 percent through medium-risk points.
Machine summary:
Road Safety Assessment with an Environmental Hazards Approach: The Sanandaj - Marivan Route Using GIS Osman Baghadam 1, Manouchehr Farajzadeh Asl 2*, Siavash Shayan 3 1- Master's student in Physical Geography, Tarbiat Modares University 2- Assistant Professor, Remote Sensing Department, Tarbiat Modares University 3- Assistant Professor, Geography Department, Tarbiat Modares University Received: 2003/12/23 Accepted: 2004/11/02 Abstract This article has been studied using 1:50,000 topographic maps, 1:250,000 geological maps, 1:250,000 land use maps, and statistics from meteorological and hydrometric stations of the road safety in the study area (considering environmental hazard parameters).
/ / / Map 1: Geographical location of the studied area 2- Materials and Methods Topographic, geological, climatic, hydrological, and geomorphological characteristics were examined for the assessment and analysis of hazard in the considered communication road.
By overlapping in a Geographic Information System (GIS) environment, the aforementioned separate layers (each representing areas from high to low danger in terms of the considered climatic and hydrological hazards) were integrated with each other.
This map shows that only a small portion of the road route possesses medium and low danger (about 10 percent), while the rest of the route possesses high to very high danger, which requires implementing measures to reduce the effects of climatic and hydrological hazards in these areas.
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