Reminder&Saver / Ambulance direction reminder

It’s often reported by news that ambulances are blocked in traffic-jams and patients cannot be sent in time for an urgent medical treatment. Most of drivers say that they can hear the sound from the ambulance but can’t find out from which direction and how much distance away the ambulance is coming. Most of drivers can not give way for ambulance in advance until it comes after. It wastes the ambulance too much time to search the way and delays the rescues; and, sometimes, an argument from misunderstand or accidents could be caused. We hope through our designed system can release the traffic delay and life can be secured in time.