What is the cost of a transit priority signal?

Transit Signal Priority (TSP) reduces the amount of time a transit vehicle spends waiting at a red light by adjusting the timing of a traffic signal’s red and green cycles. TSP works by making minor alternations to the traffic signal cycle or correcting the presence of approaching transit vehicles. It can either shorten red times so a stopped vehicle can move again or extend green times so an approaching transit vehicle can cross through without stopping. TSP helps in providing much more reliable and faster transit service and is quite convenient for any street-running transit vehicles, including buses, light rail, and streetcars.

Signal priority rules depend on the objective of the TSP system that is agreed upon by both the transit agency and the signal operations agency. Authorities can also set up rules for restricted settings that provide more flexibility for schedules and traffic signal priority conditions.  


Authorities have to balance decisions about how frequently and under what conditions to use because TSP systems interrupt a traffic signal’s standard signal cycle. As traffic signal sometimes requires various rotations to return to its standard plan; in case TSP is activated too frequently, or in too short of succession, it can cause delays for other traffic. It may even prevent the signal cycle from being reconstructed in its standard plan.

TSP works well in locations with high-frequency transit services, and people depend on transit to move. The cost of a transit priority signal to install and operate is relatively low and varies based on the number of transit vehicles outfitted with TSP equipment and signalized intersections. Typically, the traffic Signal preemption operating agency pays the cost of the equipment, and the transit agency pays for the equipment onboard the transit vehicles.

For several years, the EMTRAC TPS system has been used throughout North America to help first-response. It utilizes reliable GPS technology to enable transit bus and rail conveyance to request priority through signalized intersections. 

Get in Touch:
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
Web: https://www.emtracsystems.com/

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