C-ITS refers to an intelligent transportation system that maximizes the efficiency of traffic facilities by providing the drivers with accident danger information such as nearby traffic situation, sudden stop, falling objects, etc. in real time through collection, management and provision of traffic information. While the existing ITS system was a system centered on traffic management that collected and unilaterally provided the information manipulated by the center, C-ITS is based on advanced communication technology, assisting drivers through real-time bidirectional information exchange between vehicle and vehicle (V2V), vehicle and infrastructure(V2I), vehicle and center(V2C).