On the effectiveness of BSM communications in V2V emergency scenarios

Cooperative Intelligent Transportation Systems (CITS) improve driving experience and safety through secure Vehicular Ad-hoc NETworks (VANETs) that satisfy strict security and performance constraints. The use of Vehicle-to-Vehicle (V2V) communications to improve safety in emergency scenarios is already considered in the relevant standards. However, there is a lack of scientific efforts to evaluate and compare the effectiveness of these solutions. This paper improves the state of the art by providing an assessment of the effectiveness of V2V communications in reducing the travel time and safety–relevant events of emergency vehicles. The assessment is based on realistic simulation taking into account real road networks, traffic intensity, and all constraints of V2V communications.