Vehicular communication - a candidate technology for traffic safety

Research in traffic safety has indicated that in-vehicle safety systems provide a better service to drivers when they use data about nearby vehicles. For supplying such information, vehicular communication can be employed. However, the development of in-vehicle safety systems is currently at an early stage, and the applicability of the communication between vehicles for improving traffic safety is still under investigation. This paper provides an analysis of the role of communication for implementing traffic safety services. We survey approaches to vehicular communication and identify the most appropriate alternative for developing active safety systems that implement safety functions such as collision warning and collision avoidance.