By using Transit Signal Priority (TSP), the time is reduced to quite an extent that a transit vehicle spends while waiting at a red light by adjusting the timing of a traffic signal’s red and green cycles. The working process of TSP involves making little changes 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 is a much more reliable and faster transit service and is relatively easy for any street-running transit vehicle, including buses, light rail, and streetcars.

Signal priority rules depend on the intent of the TSP system that is accepted by both the transit agency and the signal operations agency. If authorities want, they can also set up rules for restricted settings that provide more flexibility for schedules and traffic conditions.  

Authorities work on decisions that involve balancing 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 their standard plan, if 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 excellent in locations with high-frequency transit services, and people depend on transit to move. The pricing of a transit priority signal to install and operate is relatively low and varies depending upon the number of transit vehicles outfitted with TSP equipment and signalized intersections. Typically, the traffic signal operating agency pays the equipment cost, and the transit agency pays for the equipment onboard the transit vehicles.

For many 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: www.emtracsystems.com/