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Cooperative Urban
Mobility Portal

Explore Connected and Cooperative Mobility

Signal Violation Warning (SVW)

Cooperative

Urban Mobility Portal

Explore Connected and Cooperative Mobility

Signal Violation Warning (SVW)
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Signal Violation Warning (SVW)

 
Signal Violation Warning aims to reduce the number and severity of collisions at signalised intersections by warning drivers who are likely -due to high speed- to violate a red light, or when another vehicle is likely to make a red light violation. This service aims to increase drivers’ alertness at signalised intersections to reduce the number of accidents or reduce the impact of accidents when the collision is imminent.

Participating actors in Signal Violation Warning vehicle drivers who receive red-light violation information on the in-vehicle display, road operator who may detect and signal the presence of a red-light violation, and service providers who disseminates the red-light violation information to vehicle drivers.

 

The objective of Signal Violation Warning is to provide timely in-vehicle driving assistance information on a signal violation downstream of the current position and in the driving direction of the vehicle.
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Business models

Taking into account various stakeholders’ views, a list of business model blueprints that address current or future challenges of urban areas, together with their operating and value-capture scenarios depicting the inner-workings of the business models, and the exchange of costs-benefits among stakeholders, have been created for the Signal Violation Warning service.

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Architecture
ITS-G5

In case of ITS-G5 communications, the Roadside Unit (RSU) receives information about the intersection state. This information is distributed to the On Board Unit (OBU), which can then determine a possible violation and warn the driver. The OBU shares the vehicle state to the RSU, then the RSU can determine the violation and distribute the warning to other vehicles. If the vehicle is not equipped with a OBU the RS recognizes the violation (e.g. with sensors, cameras) and provides this information to other vehicles.

Cellular

In case of cellular communications, the information is sent from the roadside system to the Traffic Management System (TMS), which provides data to service providers. Service providers will receive location data from the Personal Information Device (PID) and calculate possible violations. This information is sent as DENM over the communication provider to the PID.

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Architecture schema

Detailed information about Signal Violation Warning architecture can be found here.

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Suppliers

Suppliers of components and solutions for the Signal Violation Warning service include research institutes, such as CERTH-HIT, CTAG, as well as private companies, such as NeoGLS, IDIADA, Dynniq, Traffic Technique,and Swarco.

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Within the C-MobILE project the Signal Violation Warning service is implemented in five Deployment Sites: Barcelona, Bordeaux, North Brabant, Thessaloniki, and Vigo.

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In Bordeaux the Green Priority service is implemented on a defined area containing five successive intersections approaching an hospital. The service provider is NeoGLS. In collaboration with Gertrude, when an RSU detects the presence of an equipped emergency vehicle, it forwards a priority request to the Traffic Light Controller, which will pass the lights to green at this traffic light, but also on the traffic lights ahead, to clear the way for the emergency vehicle until he reaches the hospital.
Barcelona

In Barcelona the Signal Violation Warning service is implemented using cellular communication technology. This service is combined with the GLOSA service, at the same intersections. Applus IDIADA is the service provider working with traffic light information from the traffic management centre of the City Council and warning drivers in case they are likely to drive through a red light, depending on their speed and location.

Invisible
In Bordeaux the Green Priority service is implemented on a defined area containing five successive intersections approaching an hospital. The service provider is NeoGLS. In collaboration with Gertrude, when an RSU detects the presence of an equipped emergency vehicle, it forwards a priority request to the Traffic Light Controller, which will pass the lights to green at this traffic light, but also on the traffic lights ahead, to clear the way for the emergency vehicle until he reaches the hospital.
Bordeaux
In Bordeaux the Signal Violation Warning service is implemented in combination with the GLOSA service using both cellular and ITS-G5 communication technologies. A total of 588 intersections are configured with cellular communications in Bordeaux and its surroundings. Gertrude provides the Signal Phase and Timing (SPaT) information in real time. In addition 11 ITS-G5 RSUs deployed in the city centre broadcast both MAP and SPaT information at nearby intersections. The service provider for GLOSA is NeoGLS and the service is available through the App “CTD – Connected Mobility”.
Invisible
In Bordeaux the Green Priority service is implemented on a defined area containing five successive intersections approaching an hospital. The service provider is NeoGLS. In collaboration with Gertrude, when an RSU detects the presence of an equipped emergency vehicle, it forwards a priority request to the Traffic Light Controller, which will pass the lights to green at this traffic light, but also on the traffic lights ahead, to clear the way for the emergency vehicle until he reaches the hospital.
North Brabant
In North Brabant the Signal Violation Warning service is based on hybrid cellular and ITS-G5 communication technologies. This service is available in Helmond in combination with with the GLOSA service.
Invisible
In Bordeaux the Green Priority service is implemented on a defined area containing five successive intersections approaching an hospital. The service provider is NeoGLS. In collaboration with Gertrude, when an RSU detects the presence of an equipped emergency vehicle, it forwards a priority request to the Traffic Light Controller, which will pass the lights to green at this traffic light, but also on the traffic lights ahead, to clear the way for the emergency vehicle until he reaches the hospital.
Thessaloniki

In Thessaloniki the Signal Violation Warning service is based on cellular communication technology. The service provider, the Hellenic Institute of Transport (CERTH-HIT), cooperates with local traffic lights operators (Traffic Technique and Swarco Hellas) for information exchange and provision of information to drivers through the CERTH-HIT App (cmobile.imet.gr).

Invisible
In Bordeaux the Green Priority service is implemented on a defined area containing five successive intersections approaching an hospital. The service provider is NeoGLS. In collaboration with Gertrude, when an RSU detects the presence of an equipped emergency vehicle, it forwards a priority request to the Traffic Light Controller, which will pass the lights to green at this traffic light, but also on the traffic lights ahead, to clear the way for the emergency vehicle until he reaches the hospital.
Vigo
In Vigo the Signal Violation Warning service is based on cellular communication technology. This service provides information related to Signal Phase and Timing (SPaT) of 95 signalised intersections in the city of Vigo via CTAG GeoServer. Drivers using the local App are alerted if a traffic light violation is about to happen at the headed intersection.
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This website has received funding from the European Union’s Horizon 2020 Research and Innovation Programme
under Grant Agreement number 723311.

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