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This paper reports the development of the road traffic simulator to analyze the effectiveness of the rapid charge station (ST). We employ Digital Map 2500 (Spatial Data Framework) as the basic database for the map model in the traffic simulator. The EV behavior is defined based on the traffic database of Road Traffic Census. The road map model in this traffic simulation corresponds to the road map of 10 cities, where the area and population are 2600 km₂ and about three million people, respectively. We found the 17 STs are enough to keep the averaged travel length for a household vehicle in Japan. This result suggests the area responsible for a ST is about 150 km₂ per ST (i.e. one ST in the area of about 12 km square).