Implementation of Integrated Transit Signal Priority (TSP) System

Implementation of Integrated Transit Signal Priority (TSP) System

Jun 28, 2023 | ITS Maintenance

Nashville Metropolitan Transit Authority (NMTA)

The Nashville Metropolitan Transit Authority (Nashville MTA) is a component unit of the Metropolitan Government of Nashville and Davidson County, TN, responsible for public transit services in nine counties within the Greater Nashville and Middle Tennessee areas. The Regional Transportation Authority of Middle Tennessee (RTA) provides commuter service on the Music City Star and a network of express bus routes. The RTA works closely with the Nashville MTA. The two authorities share a headquarters and are responsible for operating local transit services within the Nashville Metropolitan region.

The Nashville MTA is leading the comprehensive planning and coordination of the Tiger V Transit Signal Priority (TSP) system program. Leading the implementation and construction are Metro Public Works (MPW), Metro Information Technology Services (Metro ITS), and in collaboration with Metropolitan Nashville Government & Davidson County (Metro), Tennessee Department of Transportation (TDOT), and other local agencies. Working with the Federal Transit Administration and MPW for planning, the Nashville MTA is ensuring that a seamless and integrated TSP system is implemented on Murfreesboro Pike Corridor with a vision to strategically implement it in other corridors in the Metro Nashville and Davidson County area.

Econolite Systems, Inc. (ESI) was contracted by Nashville MTA to provide design, development, customization, integration, implementation, and technical service support of a fully-functional interconnected Transit Signal Priority (TSP) software module that interfaced with the in-house central traffic control system network system managed and supported under the authorities of Metropolitan Nashville and Davidson County (Metro), Metro Public Works (MPW) and Metro ITS network technology infrastructure.

ESI leveraged Econolite’s Commercial-off-the-Shelf (COTS) central traffic management software called Centracs Priority. Centracs Priority integrates the existing central traffic network management system, vehicle location, and wireless communication technologies infrastructure for 50 intersections along the Murfreesboro Pike Corridor. The complete system included software development, hardware, testing, validation, deployment, and integration of the TSP system.


About Econolite

Econolite’s ITS solutions ease traffic congestion, provide safer mobility, and improve quality of life. As the one-stop-shop leader for traffic management systems, sensor products, and services, Econolite is committed to the advancement of connected and autonomous vehicles, smart cities, and cybersecurity. For more information, visit us at

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