Transit Signal Priority (TSP)

In emergency situations, every second counts. That’s why the Emtrac Traffic Light Preemption Device is a game-changer for first responders. This advanced system allows emergency vehicles to take control of signalized intersections, reducing response times and clearing a safe, efficient path through traffic. What is a Traffic Light Preemption Device? A traffic light preemption device is an intelligent system designed to interrupt the regular cycle of traffic signals to prioritize approaching emergency vehicles. The Emtrac system provides a reliable, automated solution that ensures green lights are granted to fire trucks, ambulances, and law enforcement vehicles when they need them most. How the Emtrac System Works The Emtrac Traffic Signal Preemption system operates through three core components: Vehicle Equipment: Installed in emergency vehicles, this hardware sends a secure, high-speed communication signal to upcoming intersections. Wayside Equipment: Located at signalized intersecti...

In today’s fast-paced urban environments, managing traffic flow efficiently is more important than ever. A reliable Traffic Signal Monitoring System is essential for cities aiming to enhance their Intelligent Transportation Systems (ITS). These systems help municipalities monitor traffic signals and infrastructure in real time, enabling quick responses to malfunctions and improving traffic conditions across the board. What Is a Traffic Signal Monitoring System? A Traffic Signal Monitoring System is a digital platform that provides real-time visibility into the status of traffic signals, intersections, and vehicle movements. Whether your city operates a full-scale traffic management center or simply monitors from a single workstation, this system provides essential tools to keep traffic moving smoothly. Key Features of the Traffic Signal Monitoring System Live Traffic Map: View real-time intersection status and vehicle detection on an interactive map. Broad Compatibility: Supports NEMA...

Managing traffic signal controllers across multiple intersections can be both labor-intensive and expensive. The Emtrac Traffic Cabinet Monitor is designed to simplify this process by offering wireless monitoring, maintenance, and communication with signal controllers—ensuring intersections function efficiently and safely. Whether you're overseeing a single signal or a complex network of intersections, Emtrac’s system enables seamless wireless connectivity to your traffic signal infrastructure. This intuitive solution combines advanced hardware and intelligent software, allowing you to detect and diagnose cabinet malfunctions in real-time—no matter where they occur. Emtrac’s monitoring system not only enhances traffic flow but also supports third-party traffic signal control systems through pass-through communications. Key features include remote cabinet communication, emergency vehicle preemption, transit signal priority, and real-time diagnostics—all within a compact and easy-to...

As modern transportation evolves, the demand for smarter and more reliable vehicle communication systems has grown significantly. Mobile Network Operators (MNOs) are stepping up by developing robust, secure, and scalable end-to-end communication solutions tailored to meet the automotive industry's needs. One standout innovation in this space is C-V2X Signal Priority . C-V2X, or Cellular Vehicle-to-Everything, is a cutting-edge communication technology designed to support various modes of interaction. It facilitates seamless connectivity between vehicles and infrastructure (V2I), between vehicles themselves (V2V), and even with pedestrians (V2P). These direct communications operate independently of the cellular network, enabling real-time data exchange with minimal latency — critical for time-sensitive road safety applications. Additionally, C-V2X also connects vehicles to mobile networks via device-to-cell tower communication. This capability enables the transmission of essential t...

Improving emergency response times while ensuring public safety is a top priority for municipalities and traffic management authorities. One of the most effective solutions is the Emergency Vehicle Preemption Device , a technology designed to grant emergency vehicles the right-of-way by altering traffic signals as they approach intersections. Emtrac Systems offers a reliable and cost-efficient Emergency Vehicle Preemption Device that utilizes the same technology found in connected vehicles. This makes it not only affordable but also highly adaptable for a variety of traffic environments. The system is especially beneficial in areas with poor visibility—such as roads with wide curves, obstructed driveways, or heavy tree coverage—where traditional signaling might fail to provide timely alerts. The safety advantages of using an Emergency Vehicle Preemption Device are numerous. It integrates Connected Vehicle Technology, enabling real-time communication between emergency vehicles and traf...

In times of crisis, reliable communication is essential. Cellular Signal Priority is a critical service designed to ensure that emergency responders and authorized personnel can access cellular networks even when they are heavily congested. This capability can be the difference between a coordinated response and communication breakdown during an emergency. Cellular Signal Priority is the wireless counterpart to the Emergency Telecommunications Service (ETS). Rather than being tied to a specific person, this service is linked to a designated cellular device. When an authorized user dials a specific emergency code on that phone, the device is granted prioritized access to commercial cellular networks—bypassing congestion and improving the chances of connecting critical calls. Enrolling in Cellular Signal Priority is a proactive step that ensures emergency communications are not hindered by overloaded networks during disasters, large-scale incidents, or public emergencies. Whether it’s f...

As the automotive and transportation sectors evolve, there is a growing demand for secure, reliable, and intelligent vehicle communication systems. C-V2X Signal Priority (Cellular Vehicle-to-Everything) emerges as a groundbreaking solution designed to support the real-time exchange of information between vehicles and surrounding infrastructure. Mobile Network Operators (MNOs) are playing a key role in deploying this advanced technology, enabling end-to-end communication services that enhance traffic efficiency and roadway safety. C-V2X supports several critical use cases including Vehicle-to-Vehicle (V2V), Vehicle-to-Infrastructure (V2I), and Vehicle-to-Pedestrian (V2P) communication—many of which operate independently of traditional cellular networks. At the same time, C-V2X also leverages device-to-network communication through cellular towers. This provides vehicles with access to real-time traffic data, safety updates, and predictive analytics that support applications like remote...

In today’s fast-paced urban environments, Traffic Signal Preemption for Emergency Vehicles plays a vital role in improving public safety and minimizing emergency response times. Unlike Transit Signal Priority (TSP) systems, which enhance schedule adherence and traffic flow for public transit, preemption systems are designed specifically for emergency situations. These systems override normal traffic light operations, allowing ambulances, fire trucks, and police vehicles to navigate intersections swiftly and safely. A typical network-based TSP system includes three essential components: Transit Vehicle Detection System Traffic Signal Control System Transit/Traffic Management Center While TSP fine-tunes signal timing to favor public transportation without disrupting standard operations, emergency vehicle preemption interrupts standard signal phases to give immediate right-of-way to responding vehicles. This distinction is critical—preemption is geared toward emergencies where every seco...

Traffic Signal Preemption (TSP) is an advanced traffic control solution designed to optimize the flow of priority vehicles such as public transit, emergency services, and municipal fleets at signalized intersections. The system allows these vehicles to receive preferential treatment by adjusting traffic light phases to minimize delays and improve overall efficiency. TSP operates through the use of specialized hardware—such as vehicle detection sensors and intelligent signal controllers—that identifies approaching priority vehicles and modifies the signal sequence accordingly. This reduces stop times, enhances safety, and increases the reliability of services like buses, ambulances, fire trucks, and other essential transport systems. Types of Traffic Signal Preemption Techniques: Various strategies are used depending on operational needs: Passive Preemption Early Green (Red Light Shortening) Green Extension Dedicated Priority Phases Phase Skipping or Rotation Adaptive or Real-Time Cont...

Traffic Signal Priority (TSP) is an advanced traffic management strategy that provides priority treatment to specific vehicles—such as buses, light rail, emergency vehicles, and public transit—at signalized intersections. By dynamically adjusting traffic light phases, TSP helps reduce delays and improve travel time reliability for essential transportation modes. The TSP system typically includes components like vehicle detection devices and intelligent signal controllers. These tools work together to identify priority vehicles and modify signal timings in real-time, offering a smoother and faster route through busy junctions. Types of Traffic Signal Priority Techniques: TSP can be implemented in several ways, depending on its purpose and the transportation needs: Passive Priority Early Green (Red Truncation) Green Extension Dedicated Transit Phases Phase Skipping or Rotation Adaptive/Real-Time Control TSP Implementation Approaches: Depending on the system’s goals, different TSP strate...

Emergency Vehicle Preemption (EVP) is a vital traffic management solution that prioritizes emergency vehicles—such as ambulances, fire trucks, and police cars—by granting them the right-of-way at signalized intersections. This system significantly reduces response times and enhances safety for both emergency personnel and the general public. EVP works by detecting an approaching emergency vehicle and adjusting traffic signals accordingly, typically by turning lights green in the vehicle’s direction and red for conflicting traffic. This eliminates the need for emergency vehicles to navigate intersections against red lights, thereby reducing the risk of accidents during high-speed responses. By enabling uninterrupted passage, EVP creates a safer and less stressful working environment for first responders. It minimizes the potential for collision while improving their ability to reach critical locations swiftly and efficiently. These systems rely on advanced communication technology betw...

  Transit Signal Priority (TSP) is an intelligent traffic management system designed to enhance the efficiency of public and emergency transport vehicles at signalized intersections. By adjusting signal timings in real-time, TSP minimizes stoppage time for buses, light rail, emergency response units, and other transit services. The goal is to facilitate smoother traffic flow and reduce delays, especially during peak hours. TSP systems typically rely on specialized hardware, such as vehicle detection sensors and advanced traffic signal controllers. These components communicate with approaching transit vehicles to determine signal adjustments—either extending green lights or shortening red phases—to give priority passage. Types of Transit Signal Priority Techniques: TSP strategies can be categorized by their operational functions, such as: Passive Priority Early Green (Red Truncation) Green Extension Dedicated Transit Phases Phase Skipping or Rotation Adaptive/Real-Time Control Key ...