Transit Signal Priority (TSP) — bus and transit priority equipment

TSP gives transit vehicles a lower-priority request to adjust signal timing and improve schedule adherence, while Emergency Vehicle Preemption (EVP) gives emergency responders top-priority control to clear intersections immediately. Platforms like Centracs Priority combine both functions, allowing agencies to manage multimodal priority requests on a single, unified system.

TSP systems typically rely on IP/Ethernet, fiber, wireless radio, cellular, or GPS-based communication to relay priority requests between vehicles and intersection controllers. The right technology depends on existing infrastructure, coverage area, and whether the deployment is a standalone corridor or a citywide smart city network.

Most TSP platforms are designed to integrate with standard NEMA TS1/TS2 and 2070 series controllers already installed in traffic cabinets. Software platforms like Centracs Priority are built for native integration with existing roadside infrastructure, minimizing the need for costly controller replacements during deployment.

TSP and preemption equipment should comply with NTCIP standards for ITS communication interoperability and NEMA TS1/TS2 standards for cabinet and controller compatibility. Compliance ensures equipment from different manufacturers can communicate reliably within a shared traffic management network.

Yes. Platforms such as Centracs Priority support both Transit Signal Priority and Emergency Vehicle Preemption simultaneously, allowing agencies to manage transit schedules and emergency response through one centralized dashboard with real-time monitoring, encryption-based security, and historical performance reporting.

Traffic Control Corporation provides technical support, installation assistance, training programs, and maintenance services through its regional offices across the Midwest. Factory-trained technicians offer onsite troubleshooting and ongoing service plans to keep transit priority systems running reliably after deployment.