The vehicles form an ad-hoc network, meaning that there is no pre-arranged network infrastructure and that the vehicles are not required to have access to the public Internet for communication. In addition, these vehicles are on mobility, so a
vehicular mobile ad-hoc network (VANET) is created. In particular, VANETs that consist of vehicles as nodes, face
challenges that are far different than regular MANETs. These challenges include high-speed mobility, constraints on where
vehicles can move because of roadways, unpredictable driver behavior and variable traffic behavior[2].