Abstract
It is controversial whether raising the population density of the city reduces the transportation energy. This study aims to discuss about the shape of compact city in view of the trip energy among 248 small zones that calculated by the person trip data of Osaka Metropolitan Area. Energy consumptions for access trips and differences of fuel efficiency by each vehicle type and the average travel speed are considered. I found out that (1) highly populated zone consumes relatively low trip energy, (2) the office should be concentrated in city centers, (3) the zone just around city centers consumes low trip energy because the ratio of walking and bicycling is high.
