Vienna - Austria
The Vienna pilot focuses on optimising multimodal traffic management services to support equitable and socially balanced urban mobility in the city centre.
Building on the C-ITS infrastructure deployed by the City of Vienna since 2020, the pilot extends traffic management beyond private car traffic to include pedestrians, cyclists, and public transport. Along the Ringstrasse and both sides of the Danube Canal, traffic lights are equipped with infrastructure-based C-ITS units providing services such as Green Light Optimal Speed Advice, signal phase and timing information, and the Green Wave Vienna App. These solutions enable dynamic green time optimisation based on local traffic conditions and are applied across a broader range of transport modes than before.
The pilot area covers key sections of Vienna’s primary urban road network, including tram corridors with mixed and dedicated traffic, bus lanes, and segregated cycling facilities. Up to 15 signalised intersections are used for testing and demonstration, complemented by the Mega Bicycle Highway along Praterstraße, which supports cyclist participation through FEDORA’s mobile application. Traffic management is supported by an expanded monitoring system combining C-ITS and V2X data, floating car data, stationary detectors, and traffic signal data, feeding near real-time multimodal traffic models. Within FEDORA, Vienna applies social optimum models and tests synchromodal optimisation algorithms in a real urban environment, supporting network-wide impact assessment and future mobility planning.
Key elements
- C-ITS-equipped traffic lights
- Multimodal traffic management
- Social optimum optimisation models
- Integration of pedestrians, cyclists, and public transport
- Green Light Optimal Speed
- Advice and Green Wave Vienna App
- V2X and C-ITS data from cars, trams, and buses
- Webcam-based and stationary traffic detection
- Real-time road traffic models
- Multimodal traffic modelling for Eastern Austria
- Simulation and foresight analysis tools

