A survey on techniques for collision prevention in VANET

Very popular system in VANET applications is collision prevention system that helps to prevent from chain collisions. The system obtain the vehicle information and traffic information during any emergency situation happens. It broadcast the warning messages to other vehicles for automatic break control to prevent collisions. The system sends the emergency message to vehicles in the network, before they reach to the accident region. The survey focuses on different approaches are used in collision prevention in vehicular ad-hoc network.