利用IEEE 802.11p/1609技術來縮短緊急車輛到達事故地點的時間

Abstract

Accident rescue is an important topic for life saving and emergent handling. One issue of accident rescue is how to shorten the times for emergency vehicles (such as ambulances, fire engines, and police cars) to arrive at accident scenes so that the emergent events can be properly processed. For example, an ambulance should arrive at a traffic accident scene as fast as it can so that the wounded can be taken care of as soon as possible. However, in metropolitan areas traffic jams may make emergency vehicles difficult to arrive at the accident scenes. This is because cars on the roads may not have enough space to move themselves to empty a lane for the pass-through of emergency vehicles. In this condition, the valuable time for rescuing injured people or extinguishing fire will be wasted due to undesired traffic jams, which may result in unrecoverable tragedies. To solve this problem, in this thesis we propose a traffic control mechanism based on the IEEE 802.11p/1609 radio technology to control the traffic condition and traffic lights to shorten the time required by emergency vehicles to arrive at accident scenes. In the proposed mechanism, a traffic control center is deployed to monitor the traffic conditions on the roads and provide the traffic information for emergency vehicles. The traffic control center can dynamically adjust the traffic lights on the roads to help emergency vehicles arrive at accident scenes more quickly. Our simulation results show that the proposed mechanism can significantly reduce 30% to 50% arrival times required by emergency vehicles to arrive at accident scenes in our evaluated cases.