Weigh-in-Motion (WIM) Stations

State and other highway agencies collect Weigh-in-Motion (WIM) data for many reasons, including highway planning, pavement and bridge design, freight movement studies, motor vehicle enforcement, and legislative and regulatory studies (e.g., truck weight and size studies). Motor vehicle enforcement officers use heavy truck axle load data to plan enforcement activities, as well as to screen and identify specific vehicles that violate weight limits during real time on-site monitoring.