Effective large-scale control of traffic, geared to address both efficiency and safety, requires a system incorporating a hierarchy of control levels:
- High control level over an urban, metropolitan or regional area provided by a Regional Control Centre (RCC) that acts as a strategic controller
- Middle control level provided by local sub-centres, each operating over a limited number of nodes and links in the road network
- Low control level implemented within an individual vehicle
COM2REACT`s overall objective is to establish the feasibility of such a three-layer, scalable, cooperative system. Its implementation will involve the deployment of two two-way communication systems: vehicle to vehicle (V2V), and vehicle to infrastructure (V2I). This structure will facilitate significant improvement in the flow of information acquired by moving vehicles and in its quality and reliability, thereby enhancing road efficiency and traffic safety on urban, intercity arterials and rural roads.
A key objective of COM2REACT is the implementation of the middle control level by means of a virtual traffic control sub-centre, which manages a moving group of vehicles in close proximity. The virtual sub-centre (VSC) functions locally via the V2V communication system. It obtains and processes data acquired by the vehicles and rapidly provides instructions related to local traffic and safety situations. It also transmits, by means of the V2I communication, selective data to an RCC and receives, in return, instructions to distribute to the vehicles. The role of VSC is set, unnoticeable by the driver, to one of the vehicles in the group according to rules imbedded in all COM2REACT vehicles.
The COM2REACT system will build upon the DG Research REACT project to create the high level and the low level layers of the system.

• Desarrollar la modelización y optimización en el ámbito del transporte