Landslide Management in Austria with Particular Attention to Hazard Mapping and Land Use Planning

摘要

The assessment of landslide hazards and the planning and construction of protection measures in Austria is carried out by the Austrian Service for Torrent and Avalanche Control (a federal agency) in close cooperation with the provincial Geological Services. As the feasibility of technical measures is often very limited in the case of landslides, a combination of measures targeting all parts of the risk cycle is necessary to limit the damage caused by catastrophic landslide events. In the last years special attention has been paid to avoid building activities in heavily endangered areas. In Vorarlberg (the westernmost province of Austria) the systematic incorporation of landslide hazards into the Hazard Zone Maps was launched in 2004 and areas endangered by mass movements are classified into two categories: Areas of high hazard potential (not suitable for permanent use regarding settlement and transport purposes). Areas of medium to low hazard potential (the permanent use regarding settlement and transport purposes is impaired).