Wintertime traffic accidents involving heavy traffic often cause major effects on the whole traffic entity. Accidents involving heavy road vehicles cause operational losses, human casualties, infrastructure losses, and negative environmental impacts. New Eureka Xecs SafeTrucks-project (Heavy traffic safety improvements by advanced dynamics and road weather services) develops real-time vehicle-specific weather and safety services tailored to each vehicle, based on the vehicles’ own observations combined with data from the service systems and an analysis of the vehicle’s own dynamics. Data is analysed by Digital Twin modelling and communicated to the driver through a hardware system in real-time. The Finnish Meteorological Institute (FMI) is the coordinator of the project, with an authority expertise in the development of the ITS-enabled road weather services in long-term basis.