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Traffic Light Priority
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Priority at traffic lights for public transport vehicles is an efficient method to reduce travel times and make public transport more attractive for travellers. At the same time, costs are reduced when vehicles are used more efficiently.

The TRUE real-time Traffic Priority (TTP) module makes it possible to control traffic lights, road gates, etc., in a quick and accurate way. TTP is easy to install and flexible to use or expand. Since the system is based on radio communication, road excavation and other costly activities are not needed. There is no requirement for inductive loops thanks to the unique solution with IT-radio.

Traffic Light Priority features:

  • Request priority for vehicles based on time to traffic light instead of distance.

  • No road excavations are needed

  • Intelligent automatic optimisation makes the TTP system adaptable to changes in the road structure

  • Easy installation

  • Denies priority to early vehicles

Case – Helsinki

Helsinki, the capital of Finland, has made a large-scale investment in traffic light priority for both trams and buses. 160 traffic lights are controlled by the TRUE real-time system in the city centre. The results are quite remarkable. Since 2001, Helsinki City Transport has saved over 1 million € annually by using the vehicles more efficiently. Travel time has been reduced for the passengers and air quality improved, thanks to reduced exhaust emissions.