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Challenge / Goal

In order to save valuable time, fire brigade and ambulance service vehicles should be given preferential treatment to traffic lights. 


The aim is to switch the signal system for the direction of travel from the emergency vehicles, with a certain lead to "green", so that possibly pent-up vehicles can drain and an alley for rescue vehicles can be formed. The communication between emergency vehicles and signal systems takes place via the "car2X-communication" (c2x) standard. In contrast to the currently used technique, e.g. in public transport prioritization, information is exchanged between the LSA and the vehicle every second. As a result, the release times can be adapted more flexibly and the adverse effects on other individual traffic are reduced.

Citizen participation

The citizens were informed via a press conference at one of the site locations. Additionally, television, radio, newspapers, municipal events, and the city website were used as channels to inform the citizens. For instance, at conferences like 'Zukunfts conference', the citizens were also informed.


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Time period

Planning time: 1 to 2 years

Implementation time: 6 months to 1 year

    Main benefits

  • Reducing use of fossils

  • Improving traffic management

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