What technology is typically used for real-time feedback in vehicle detection systems?

Inductive loops are the technology commonly employed for real-time feedback in vehicle detection systems. This method involves the installation of loops of wire embedded in the pavement that create a magnetic field. When a vehicle passes over or stops on the loop, it alters the magnetic field, which the detection system interprets as the presence of a vehicle.

This feedback can be used to control traffic signals, manage vehicle flow, and collect data for traffic analysis in real-time, allowing for adaptive responses based on current conditions. Inductive loops are favored for their reliability and effectiveness in accurately detecting vehicles at intersections and along roadways, contributing to improved traffic management and safety.

While microwave sensors, optical beam sensors, and GPS tracking are also used for detecting vehicular presence or movement, they do not typically provide the same level of precision and real-time feedback capabilities as inductive loops in most traffic signal systems.