This is a method of grouping vehicles into platoons, to primarily increase road capacity and could be developed in the interim, leading up to fully automated vehicles on a wide scale. Platoons would be acheived as part of an entire automated highway system.
Platooning will decrease the distances between cars or trucks and would allow vehicles to accelerate or brake simultaneously. This system also allows for a closer headway between vehicles by eliminating reacting distance needed for human reaction.
Smart cars with artificial intelligence could automatically join and leave platoons, with Automated Highway System proposals for cars organising themselves into platoons of eight to twenty-five.