Difference Between Traffic Signal Priority & Preemption

Joseph Craven
1 min readMay 12, 2022

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Today’s blog would revolve around Transit Signal Priority and Traffic Signal Priority and the primary difference between the two.

The primary difference between Transit Signal Priority and Traffic Signal Priority is that signal priority changes the normal signal operation process to help transit vehicles better. The Emergency Vehicle Preemption limits the regular process for rare cases such as countering the fire engine or nearing a train.

Traffic Signal Priority

Transit Signal Priority (TSP) is a back-end plan that facilitates in-service transit vehicles, like cars or buses, through traffic-signal controlled intersections.

Traffic Signal Preemption is a method used by several cities through which traffic lights that have been provided with appropriate infrared receiving devices can be improved when a signal is sent from a particular transmitter in a vehicle.

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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