weigh-in-motion is a technology that can be used for various private and public purposes (i.e. applications) related to the weights and axle loads of road and rail vehicles. wim systems are installed on the road or rail track or on a vehicle and measure, store and provide data from the traffic flow and/or the specific vehicle. for wim systems certain specific conditions apply. these conditions have an impact on the quality and reliability of the data measured by the wim system and of the durability of the sensors and wim system itself.