Risk assessment of several hazards along railway network using AHP incorporated into GIS

Located in northeastern Algeria, the region of Constantinois is undoubtedly among regions most affected by various risks related to rail networks. These phenomena are one major development issues and a permanent threat population existing facilities. The associated with field transport several parameters such as soft geological formations, steep slopes, hydrographic network, seismic frame mainly problems linked human accident, suicide stones thrown. In this context, objective paper identification risk-prone areas network linking Constantine Skikda (Algeria). This order highlight relations that exist between parameters: conditions, local topography, flow vegetation...etc., hazard treat on railway settlement or landslide risk anthropic (risk stone thrown accident). methodology used based GIS approach identify susceptible, it interpretation satellite map, topographic, other data. project developed will allow superimpose analyze effect factors integrity, these their respective weights then calibrated statistical tool adopting method "Analytical Hierarchy Process" AHP. resulting susceptibility maps distinguishes degrees may be collapse accident platforms. comparison inventory map accidents have already been recorded railways services shows results obtained from spatial modeling very satisfactory.