How Traffic Light Preemption Devices Enhance Urban Traffic Management | |
A Traffic Light Preemption Device is an advanced tool used to alter the standard operation of traffic signals, allowing priority vehicles—such as emergency responders or transit fleets—to navigate intersections more efficiently and safely. Commonly implemented in cities across the globe, these systems rely on transmitters mounted in vehicles and receivers installed at intersections to communicate in real-time. When a vehicle equipped with a preemption transmitter approaches a signalized intersection, it sends a specific signal—often via infrared, GPS, or radio frequency—to the receiver on the traffic light. This communication triggers a change in the signal phase, typically granting a green light to the approaching priority vehicle and temporarily halting cross-traffic. These devices may also be integrated into centralized systems managed by emergency call centers, fire stations, or transit control units. Depending on the application, preemption devices can be installed directly on vehicles or operated remotely. However, intersections must be equipped with compatible receivers to respond to preemption signals. Without this capability, the signal controller will continue to follow its standard timing cycle, ignoring the incoming request. An important function of advanced preemption systems, like those offered by EMTRAC, is managing multiple simultaneous requests. For instance, when two or more equipped vehicles are nearing the same intersection, the system prioritizes responses and may use an optional Control Head to notify drivers of nearby traffic activity. Overall, Traffic Light Preemption Devices play a vital role in improving safety, reducing response times, and optimizing traffic flow in busy urban environments. Contact: visit: https://www.emtracsystems.com/ location: Manufactured By STC, Inc. 1201 W. Randolph St, McLeansboro, IL 62859 phone: Richard D’Alessandro: (214) 607–0100 Fax: (214) 607–0105 Email: info@emtracsystems.com | |
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Target State: All States Target City : All Cities Last Update : May 13, 2025 11:00 AM Number of Views: 26 | Item Owner : emtracsystems Contact Email: (None) Contact Phone: (None) |
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