Chair: Mo TAYYARAN, member of TC 3.2 of PIARC, Canada

Most actions in winter maintenance are triggered by weather events. Weather forecasts are a very important source of Information for decision maker in winter service but they are not the only one. Together with information about road weather, road state and traffic winter service operates. New technologies in data collection, transfer and analysis enable new innovative technologies to support decision makers. Heavy snowfalls or snowstorms dramatically reduce visibility. If the snow finally hits the ground and accumulates there is the chance for it to block traffic. This session deals with methods to detect visibility and ways of snow removal.