Travel Time Minimization at Roundabouts for Connected and Automated Vehicles

The results obtained so far from the industry and academia illustrate that fully automated vehicles are increasingly closer to be deployed in series on the roads, but they need to be connected between them and with the infrastructure for optimal performances. The roundabout type of intersection contributes to decreasing the number of accidents, but it’s performance is reduced when the traffic volume increases. In this case, the intersection becomes an area of bottlenecks. To minimize the travel time of connected and automated vehicles through roundabouts by reducing the waiting time before entering it, in this paper, a centralized controller for a roundabout was proposed. It has the task of computing and sending the waiting time for the vehicles that want to travel through the intersection such that the total time to traverse it is minimized and the collisions are avoided.