Radar guns have long been used to track vehicle speed and catch drivers who are traveling faster than the speed limit, but the future of speeding enforcement is moving in a different direction. Across the United States, law enforcement is investing in laser technology to replace radar technology.
In Colorado, many drivers speed along the I-25, sometimes over 80 mph. But even with a radar gun, police officers may not be able to accurately determine exactly who was driving that fast. According to Tim Bussey, “When officers are shooting radar at you, it goes out in a cone form and it can pick up many objects in that cone. The farther away, the more objects it picks up.”
Radar determines speed by sending out Doppler waves that bounce off moving objects. If a car is travelling next to other vehicles, especially bigger vehicles like a tractor trailer, it may not be able to get an accurate reading. This is why law enforcement agencies are moving toward laser technology, which they believe is more accurate.