Architecture and recipient selection of emergency messaging for ambulance traveling

Reduction of traveling time of ambulance is very important to the safety of users of the transportation system. Vehicular messaging can be used to improve upon emergency response efforts in traffic accidents. This paper realizes an application for emergency message (EM) transmission for rescue services. A dispatched ambulance might occasionally get stuck in a huge traffic and delayed its arrival. The EM, sent via vehicular network, can be used to inform drivers of the traveling ambulance. The recipients of EM could kindly avoid occupying the engaging route (ER) that the ambulance is about to take, such that the medical services can be delivered as quickly as possible. We propose Emergency Messaging for Ambulance Traveling (EM4AT) to smartly reduce transmission cost of EM and to shorten traveling time of ambulance. We develop the simulation to estimate the advised traffic and travel time on ER. It shows that approximately 80% of drivers can receive EM while only 50∼60% of the relevant road links are involved for EM transmission.