Enhancement of information propagation on the highway in VANET based on Multiple Vehicle Class

The Intelligent Transportation System (ITS) has become a part of smart cities and road safety. Based on communication systems technologies, ITS can solve several road issues, such as accidents. A vehicular ad-hoc network can be part of ITS. We analyze the connectivity characteristics, the effectiveness of message propagation distance on the network connectivity, and the delivery of alert message delay. Several factors can affect the delivery of alert messages within a suitable time(i.e., low connectivity between vehicles). The free-flow state allows drivers to drive their vehicles as they want; the flow and speed of vehicles are independent. The different lanes on the highway have associated speed limits; multi-speed on the road can increase the connectivity among the vehicles and lead to minimizing the message delivery time. The fast vehicle acts as a bridge node, and it can bridge the gap between different clusters and allow information to be shared with other clusters.