What are common methods used in speed enforcement besides radar and lidar?

Timing devices and speed cameras are widely recognized methods used in speed enforcement that provide an effective means of monitoring vehicle speeds. Timing devices often utilize a known distance where the time taken by a vehicle to traverse that distance is measured. By calculating the time and applying the formula of speed equals distance divided by time, enforcement officers can determine if a vehicle exceeds the legal speed limit.

Speed cameras, on the other hand, are automated systems that capture images of vehicles that are traveling over the speed limit. These cameras can be triggered by a vehicle’s speed detection and are often placed in areas where speeding is prevalent. The effectiveness of speed cameras lies in their ability to provide a record of the offense, which can be critical for enforcement and as a deterrent to speeding behavior.

In contrast to the other options, which either focus on monitoring or do not directly relate to speed measurement (such as dash cameras, GPS tracking, or traffic cones), timing devices and speed cameras are specifically designed to measure and enforce speed limits directly. This makes them integral tools in the wider strategy of traffic law enforcement.