抄録
Market forces and/or planned intervention in many metropolitan areas are transferring urban form from mono-centric to more dispersed or, poly-centric structure where firms cluster outside city center and where location and trip patterns tend to vary amongst cities. As study area, distribution of employment, and related commuting and residential location preferences in Tokyo metropolitan area have been investigated by grouping zones into four tiers and analyzing associated trip lengths, mode shares employment destination zonal preference functions. Tokyo contributes to poly-centric city work (with huge literature on North America) by its extensive railways that mainly characterize urban dynamics. Results confirm that despite relatively higher decentralization between 1960s and mid of 1980s, Tokyo central area or highest ranked zones are accommodating half of total employment stock but jobs agglomerations have evidently evolved nearby major rail stations generating stable trip times over time and uniform mode shares over metropolitan area.
