Transportation network expansion is a key factor for realization of economic and social development, particularly in developing countries. Traffic for having comparative merits such as high level safety and energy saving has a desirable place among different transportation modes. For particular condition, its extent and position in Middle East, sprawl of settlement and distance of growth poles, development of route systems is vital. In conventional route selection, economic and technical parameters were mere determinant factors in which environmental impacts of projects were completely neglected. (EPA 1991)
Literature
Minimization of environmental impact and liabilities requires consideration of environmental criteria in initial planning and route selection. Consideration of environmental parameters, in addition of economic and social ones by increasing required data, make more complex process of route selection in traditional mode. Emerging complexity of decision making process in new situation that involve much more data and consideration of different type of criteria, urge investigator and planner to utilize of more effective technologies such as GIS to help analyzing a great volume of data. GIS make possible to analyze and process data as quickly and precisely as possible. (EPA 1985)
Over the past few years, an increasing number of investigations on GIS-base route selection became available. Feldman et al (1995) used remotely sensed data and GIS for pipeline routing in a small section of the proposed Caspian oil pipeline. For this mean a model was developed incorporating pipeline length, topography, geology, land use, stream, wetland, road and railroad crossing to identify least cost pathway. In another study (Jacobs and Vuong, 2001) that was done in USA, GIS technology was successfully applied for routing High Speed Traffic (HST) in Minnesota Province. The purpose of this study was to develop a linear facility-siting method especially for a HST route. The key factor and constraints that affect land suitability for a HST route identified by this study were soil type, slope, roads and highways crossing, wetlands, lakes and streams and urban areas. Multi Criteria Evaluation (MCE) was used to identify suitable lands. The least cost pathway was also used to create a potential zone in which to locate a route.
The assessment of the environmental and social impact of a project is a requirement in this area. Instead of conducting a preliminary audit, the user of the land may ask for a preliminary consultation that is carried out by Bones Homes. Once completed, these documents and the request for preliminary consultation were handed in to Bones Homes for Nature, Environment and Water at the beginning of January 2010. The phases detailed in the documentation have been formulated in accordance with the preliminary negotiations of the fourth quarter of 2009 in this area.
In parallel with the preparation of the consultation documents, several negotiations have been held with the Ministry for Environment and Water, the Inspectorates of the affected areas, this in order to conciliate the special planning and permission procedures. On the basis of these negotiations, a request for preliminary ...