Now a days there are lots of inventions done in vehicles and some may in progress, these inventions help to resolve the challenges caused by the increasing transportation issues. These modern vehicles equipped with a large amount of sensors, actuators and communication devices e.g. GPS. New vehicles have possessed powerful sensing, networking, communication and data processing capabilities and can communicate with other vehicles or exchange information with the external environments over various protocols. This can be done with the help of Vehicular communication systems; these are the networks in which vehicle and roadside units are the communicating node, with each other provide the information, such as safety warnings and traffic information. They can be effective in avoiding accidents and traffic congestion. To solve these issue sending and receiving messages is an important factor. All this things are good when the number of vehicles are less, system must be able to handle traffic spike or sudden demands caused by special events or situations such as sport games or emergencies. This is nothing but a scalability challenge which is going to overcome in this paper using routing protocol called Epidemic routing protocol.