Creation of Future Compact Urban form Scenarios of Tokyo in Combination with Adaptation Policies

Studies have suggested the importance of implementing climate change mitigation and adaptation measures in combination with considering possible co-benefit and trade-off among them. However, quantification of such co-benefit/trade-off at city level is still in its infancy. Accordingly, using a micro zone level spatial explicit land use model which we have developed, this study assesses the co-benefit/trade-off of mitigation measure (compact city policy) and adaptation measure (retreat from high flood hazard areas) from the view point of CO2 emissions and expected loss due to the damage by river floods. For the assessment of residential CO2 emissions, this paper utilizes the microdata of National survey of family income and expenditure. The results suggest the importance of careful planning to create compact city to avoid trade-off. This study was funded by “Research Program on Climate Change Adaptation (RECCA)” of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.