Comparative Analysis of Various Routing Protocols in VANET To make the drive safer in future Vehicular ad hoc network can ease our life. For its success, it needs efficient routing protocols for communication among vehicles. Such communication can either through road side units (RSUs) or on board units (OBUs) in the vehicles. In this paper we are exploiting various existing routing protocols like AODV, AOMDV, DSR and DSDV by varying the velocity of vehicles and then comparing their performances with respect to throughput, end to end delay, packet delivery ratio and normalized routing load during communication.