Which feature allows police to measure speed for multiple vehicles at once using radar?

Moving mode is the feature that allows police to measure the speed of multiple vehicles simultaneously using radar technology. In this mode, the radar system sends out signals while the police vehicle is in motion, allowing it to track multiple targets moving in various directions. The radar can differentiate between these targets based on the Doppler shift of the returned signals, enabling the identification of different vehicles and their respective speeds.

This capability is particularly useful during high-traffic situations, where multiple vehicles are present, as it provides law enforcement officials with the ability to efficiently monitor speed without needing to stop or remain stationary. The technology is designed to filter and prioritize signals from the closest and fastest vehicles, thereby accurately measuring their speed while ignoring background noise and other less relevant signals.

The other modes do not provide the same functionality. Stationary mode typically measures the speed of vehicles approaching the radar while the radar unit remains in a fixed position, making it less effective for monitoring multiple vehicles. Target acquisition mode refers to focusing on a specific target, which limits the ability to measure the speed of multiple vehicles at the same time. Radar wave mode is not a recognized term in the context of speed measurement and does not have any relevance to differentiating vehicle speeds.