Collision Avoidance System for Safety Vehicular Transportation in VANET

A Vehicular Ad Hoc network (VANET) is an emerging technology among the scholars and vehicular industries in recent years. The wireless collision Avoidance (CA) system sends early message to drivers before they reach accident zone on the road. This paper proposed an analytical model for warning messages through collision avoidance (CA) system. Use the Dichotomized head way model, the Braking model, and Greenberg’s logarithmic model to make vehicular mobility traces. The main concern is reduce delay while transfer message from one vehicle to another vehicle. Using minimum number of road side units (RSUs).The major concern related to VANET is congestion control (CC), and rapidly changing topology and lack of central coordination. We use collision avoidance system for the safety transportation and receive periodic messages and reduce traffic in highways. Keywords— collision avoidance, vehicular ad hoc networks, early message, congestion control