(Cooperative Intelligent Transportation Systems)



As a result of the rapid development of information and communication technologies in the world, major and comprehensive changes and transformations are taking place in industrial and digital fields. These changes significantly affect the transportation sector and therefore the types of transportation. Intelligent Transportation Systems (ITS) are defined as a system that uses advanced technologies to improve road safety, develop traffic management and support all stakeholders (passengers, drivers and pedestrians). With the development of the Internet and wireless communication technologies, current studies are moving towards cooperation on the road and between transportation systems. Cooperative Intelligent Transportation Systems (C-ITS), one of the disruptive and innovative technologies, is based on the principle of having information about the vehicles and road infrastructure around the vehicle.

RSU – Roadside Unit

C-ITS is one of the innovative technologies aimed at improving the efficiency, safety and environmental performance of highway transport, and enabling vehicles to interact directly with each other and the surrounding road infrastructure. It is aimed to improve the interaction and cooperation between people, vehicles and infrastructure with C-ITS. Autonomous vehicles are defined as vehicles that can operate on their own without human intervention and sense their surroundings. It refers to different tools that use communication technologies to share information and establish a connection between Connected Vehicle, Vehicle (V2V), infrastructure (V2I), cloud (V2C), pedestrian (V2P) or everything (V2X). Connected Automated Vehicle (CAV) refers to vehicles that provide autonomous driving and at the same time have the ability to collect and share information about the driving environment.

V2V Communication

It aims for the vehicles to share their instant location and speed information with the surrounding vehicles using communication technologies and thus prevent traffic accidents. In this technology, the warning can be given to the driver according to the autonomous level of the vehicle, and it is also possible for the vehicles to react on their own. With V2V technology, more effective and efficient traffic management is aimed in comparison with applications such as lane monitoring and blind spot warning system currently used in today's vehicles.


V2I (Vehicle - Infrastructure)

Communication It is based on the fact that the vehicles are in communication with the infrastructure components on the road. Applications that can improve traffic management such as road speed limit, setting traffic lights duration, instant traffic status, accident information and parking information are targeted with the data flow provided thanks to this technology.

V2P (Vehicle-Pedestrian)

Communication It is aimed to prevent pedestrians from being involved in traffic accidents. As an example, the elimination of the hazard of being crushed can be given by warning pedestrians who remain in the blind spots of high vehicles.

V2C (Vehicle-Cloud)

Communication It allows the data generated by the vehicles to be stored and processed. The examples of this data may include the driving characteristics, fuel consumption and emission values.

V2X (Vehicle-Everything)

Communication It covers the communication of the vehicles with all the factors that may affect them and includes all other connection technologies.

Intetra Field Activity

Intetra new generation intersection controller has incorporated the C-ITS approach into its vision and has advanced its studies in this direction. The developed device has been tested by establishing a connection with the Roadside Connector starting from the initial stages, and the necessary functionality studies have been carried out taking into account the two-way communication. Information on the intersection controller (such as remaining light times or alarm conditions…) is transmitted to the vehicles personally via the Roadside Connector. Vehicle classes and different data from vehicles are transmitted to the intersection control devices. As a result of these, it ensures that measures such as vehicle prioritization or structure change are taken.