Abstract
Recently, at the scene of emergency medical transportation, the spread of aeromedical service by helicopter is progressing. Utilization of aeromedical service is effective in the situation of shredded land transportation network due to tsunami flooding and landslides after the earthquake. Therefore, in this study, we analyzed the situation of rendezvous point placement, which is indispensable for utilization of aeromedical service in disaster medical transportation after the earthquake in Chita Peninsula, Aichi Prefecture by using accessibility and influential zone population, and we examined rendezvous point placement where the existing open space for expanding aeromedical transportation system after the earthquake. In addition, we proposed the method using road network voronoi division in calculation process of the influential zone population, and compare it with voronoi division which is a common method in influential zone analysis. As the result, we pointed out that the road network voronoi division which can take account of the real road network is appropriate in Chita Peninsula.