Évaluation de la vulnérabilité territoriale des enjeux environnementaux du Grand Lyon aux aléas technologiques

This study proposes a new methodology allowing a better knowledge of the territorial vulnerability of the Greater Lyon’s environmental stakes to the transport and the storage of hazardous materials. This one is mainly based on a compilation of heterogeneous spatial data and a statistical processing, based on semi-structured interviews with experts and cartographically translated with a Geographical Information System. Here we propose fine scale raster views, which homogeneously weight the concentration of the environmental stakes according to their sensibility to thermal, toxic and overpressure effects. These maps can therefore be considered as operational documents for the mediation of industrials, local authorities ‘officers and territorial engineers. MOTS-CLES : enjeux environnementaux, SIG, vulnérabilité territoriale, données spatiales hétérogènes, information géographique homogène, analyse hiérarchique multicritère.