V2I Data Exchange Architecture for Enhanced Vehicle-Road Cooperation

Mobile communication has a big potential in the transportation domain. Due to constant progress in the technology, new concepts of cooperation are emerging between vehicles as well as between vehicles and the road infrastructure. The French project Divas1 is focusing on the risk related only to the vehicle-road link. The objective of Divas1 is to establish a two way dialogue between the vehicle and the road in order to enhance safety on all types of roads with a particular focus on rural roads for which few research effort is done. In order to perform this task, researchers from different horizons (private companies and public institutes, road operators and fleet managers) are working together in order to answer these questions: What is the content of the road-vehicle dialogue? Which technology should be used? How beneficial can be the role of the road and the vehicles in the safety enhancement? Who would be liable of a Divas system? Divas system is conceived as an ADAS2: the output of this system is delivered for the driver as a recommended speed. But of course there are also benefits for fleet and road operators as well.