The document discusses the concept and implementation of Transit Signal Priority (TSP) to improve public transport efficiency by managing traffic signals. It outlines two types of TSP: passive, which adjusts signals based on average vehicle speeds, and active, where vehicles communicate directly with signal controllers for priority changes. The aim is to reduce stop times at signals, enhance schedule reliability, and facilitate smoother public transport operations.

1. Contact
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● Transit Signal Priority (TSP)
● Automatic Vehicle Location (AVL)
● Bus Rapid Transit (BRT)
● Intelligent Transportation Systems (ITS)
(Advanced Traffic and Priority Management Systems)
TSP for Public Transport & Buses
The basic concept of Transit Signal Priority (TSP) includes different operational changes
through technology that decrease stop time at traffic signals for transit vehicles. It either
holds green lights longer or shortens red lights. Such changes in public transport
movements at crossings are an excellent way to undo the mess with the public transport
travel time and increase schedule reliability.
There are primarily two sorts of TSP:
Passive Traffic Signal Priority – In the Passive system, as per the average public transport
vehicle speed, the traffic signals are arranged to turn green.
Active Traffic Signal Priority – In the Active TSP system, the bus transmits a signal to the
traffic signal controller.
Active Traffic Signal Priority Systems:
● Dedicated priority – phasing changes.
● Longer Green Time – timing changes.
● Phase & Timing Change.
● Intelligent Transport Systems (ITS).