EMTRAC System Utilizes Precise GNSS Technology and Secure Wireless Communication

Joseph Craven
2 min readAug 14, 2024

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The EMTRAC system is a leading solution for Traffic Signal Preemption, providing unmatched reliability, safety, and efficiency through its advanced GNSS technology and secure wireless communication. For over 30 years, the EMTRAC system has set the standard in intelligent transportation systems, ensuring that emergency and transit vehicles receive timely and effective signal preemption.

Traffic signal preemption is a critical feature for emergency response and public transit systems. The EMTRAC system allows emergency vehicles, such as ambulances, fire trucks, and police cars, to swiftly navigate through intersections by preempting traffic signals. This capability significantly reduces response times, improving overall public safety and saving lives.

EMTRAC-equipped vehicles continually assess real-time conditions to determine if traffic signal preemption is necessary. When required, the system automatically transmits a preemption request to the appropriate traffic signal controller, ensuring a green light for the approaching vehicle. This seamless integration with existing traffic infrastructure enhances the efficiency of emergency response and transit operations.

Several factors determine whether a traffic signal preemption request is granted, including the type of emergency, the vehicle’s location and speed, and the current traffic conditions. The EMTRAC system’s advanced algorithms consider these variables, ensuring that preemption is granted only when necessary. This automatic process eliminates the need for driver intervention, allowing operators to focus on their primary tasks.

The inclusion of Cellular Vehicle-to-Everything (C-V2X) technology further elevates the EMTRAC system’s capabilities. C-V2X enables precise and secure communication between vehicles and traffic signals, ensuring that preemption requests are processed quickly and accurately. This technology supports real-time data exchange, which is essential for effective traffic signal preemption.

Beyond enhancing emergency response times, the EMTRAC system also improves public transit efficiency. By reducing delays at intersections, transit vehicles can adhere more closely to their schedules, providing more reliable service to passengers. This efficiency leads to lower fuel consumption and reduced emissions, contributing to environmental sustainability.

In conclusion, the EMTRAC system, with its precise GNSS technology, secure wireless communication, and integration of C-V2X, sets the benchmark for traffic signal preemption. By improving response times, transit efficiency, and overall safety, EMTRAC continues to lead the way in modernizing transportation systems and promoting sustainable urban mobility. As cities expand and the demand for efficient traffic management grows, the EMTRAC system’s role in providing effective traffic signal preemption becomes increasingly critical. Contact the EMTRAC system for the Transit Signal Preemption (TSP) program by phone: (214) 607–0100, Mobile: (618) 316–4633, or visit: https://www.emtracsystems.com

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