Abstract
Deregulation of Floor-Area Ratio (FAR) of office buildings in the center of a metropolis expands agglomeration economies. On the other hand, one of the main objectives of the FAR regulations is to manage road traffic demand because of the time loss caused by road traffic congestion. This study sets up the hypothesis that supply of large office buildings improves externalities of accumulation and provides the increase in short-range trips, promoting the use of the alternative mode of transportation to automobiles. The empirical results suggest that the benefit of accessibility to office buildings which extend 50,000 m2 and more in floor space is greater than those less. And at the same time, the supply of office buildings larger than 50,000 m2 in floor space increases the amount of trip made by an office employee as total. In terms of different mode of transportation, this also reduces the amount of trip by automobile, while it
increases the amount of walking trip and railway trip.
