عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Risk assessment is a process of determination of risk quantity and quality using potential hazards of the project as well as considering the sensitivity or vulnerability of the surrounding environment. The main purpose of this study is determination of criteria and estimation of rail lines environmental risk by integration of multiple criteria decision making method and ecological risk assessment using YAPP Technique. Thereby, in the current study, the western railway corridor of Iran (Samangan- Kirmanshah- Khosravi route) which has the approximate length of 582 km was selected as a case study. The software that was used in this study was Expert Choice. The of inconsistency ratio were determined using Delphi Questionnaire and software Arc GIS 9.3 to produce impact intensity maps. Risk zonation of the western railway corridor of the country revealed that about 80 % of all length of the mentioned route has a low and negligible level of risk. The lowest risk belongs to the places situated at 155 to 153 km of the mentioned route, (near the city of Tuyserkan- Hamedan Province) as well as an area located at 479 km of the route (Sare Pole Zahab city in Kirmanshah Province). The medium risk level is observed between 80-47 km of the route near the county of Malayer (located in Hamedan Province) and the kilometers240-250 between Sahneh and Hersin (situated in Kirmanshah Province). Areas in the 485-480 km of the route located within the city of Kirmanshah (Kirmanshah province) are known as high-risk area due to deployment of the plan on lands prone to lands lide.