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This work enables the developing of a multi-criteria assessment methodology to find the least environmental cost railway corridor that connects Huelva (Spain) and Faro (Portugal). This paper is part of Interreg Project entitled “Strategical impact assessment (SIA) for the possible railway connections (high speed/conventional) Huelva-Algarve (EAE-FER)” (www.webrise.eu). The approach enables, in the first place, the selection of the environmental factors that will be considered in the model, the homogenization of environmental information from the two different countries, as well as its subsequent implementation in a GIS (Geographical Information System). In the second place cost surfaces are calculated from selected factors, and using a linear weighted combination and introducing the limited factors as a restriction, the final friction surface is obtained, which in conjunction with the points of origin and destination, it is possible to obtain the least- environmental-cost corridor and alignment.

Metodología de trazado de corredores ferroviarios de mínimo impacto ambiental. Caso particular: Alta velocidad Huelva (España) - Faro (Portugal)