Snow avalanches pose a threat to alpine communities because they affect safety in villages and of human infrastructures such as ski pistes or traffic routes. Dealing with avalanche danger and risk has a long tradition in Alpine countries and although strategies have been adapted over the centuries, the general principles remained the same: preventing the release of avalanches or reducing their size, influencing its direction of movement or avoiding the presence of objects in endangered areas either in the long term or in the short term.