A Study on the Compact City Policy for Sustainable Development in the Developing Countries in Human, Social and Economic Dimensions

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This study aims to verify the appropriateness of adaptation of "Compact City Policy" to Asian developing countries and consider an application methodology as a tool of sustainable development.Firstly, a development of calculation model of total transfer and traffic volume and data gathering (Person Trip : N=278) are conducted in Bangkok Metropolitan Region (BMR: Bangkapi, Bang Plee, Bang-Chalong) collaborated with faculty of architecture and planning, Thammasat University. As a result, some phenomena are specified that average trip distance of workers is nearly 40-50 km per a day but at the same time average total trip distance is hit a peak at approximately 100 km per a five-day workweek. Briefly, it is revealed that high cost of transportation has been vanishing the employment rate of low-income workers. On the other hand, 3 regions mentioned above have certain degree of population density and urban fringe of BMR has been sprawled out widely, therefore, it is cleared that polycentric (=many centered) type of compact city approach is highly recommended for Bangkok.Secondly, development of a multi-agent simulator (B2SQ model) is conducted by using SOARS language and putted the geographical and transportation data of BMR and agent, which includes social role and income bracket.The model calculated a ratio of traffic modal split (Car 30%, Bus 30%, BTS 15%, MRT 14%) decreased utilization ratio of the road motor vehicle compared with the real BMR situation under the condition of polycentric urban form that constituted with 8 sub-cores around CBD, which networked by railways.According to the results mentioned above, polycentric (=8 sub cores) compact city approach which accelerate traffic network density will have a beneficial effect on BMR for reducing motoring population and travel cost of the residents.