What does full-range speed detection on highways mean?

[MacCarlos]

Full-range speed detection means that the traffic management department of the public security authorities relies on fixed speed capture systems on highways, supplemented by mobile speed detection enforcement equipment, to conduct speed enforcement through a combination of continuous interval speed detection, single-point fixed speed detection, and regional mobile speed detection. Extension: The traffic police department states that highway speed detection is entirely based on the speed limits marked by the transportation department on highways. For sections without speed limit signs, enforcement follows the statutory maximum speed limit prescribed by national laws, with a maximum speed limit of 120 km/h for small vehicles. In special speed limit sections, the transportation department will set up speed limit signs in advance, and drivers are advised to pay attention to the warning signs while driving.