The section speed monitoring system is installed at both endpoints of a closed road segment, typically ranging from 5 to 20 kilometers. It features a video detection system with license plate recognition capabilities. As a vehicle passes each endpoint, the system automatically records the time, license plate, and instantaneous speed, capturing images of the vehicle's characteristics. Operating unattended, the system measures and calculates both instantaneous and average speeds, determining whether the vehicle is in violation of speed limits.