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Reducing CO2 emissions is one of the biggest environmental issues which is captivating international concern. CO2 emissions from transportation sector are increasing in both developed and developing countries. In this research we focused on four countries in Asia such as Japan, China, India and Thailand which are thought to be on the various stage of economical development. We conduct long-term projection on CO2 emissions from transportation sector for those four countries. For the first step, we estimate transportation demand for each country using passenger transportation demand model and freight transportation demand model. Passenger transportation demand model reflects time use constraint which is the limitation of time spends to transportation activity of one person in one day. Freight transportation demand model is a simple model which estimates future value using current trends. Second, we estimate the CO2 emission using bottom-up type model. This model describes technology choice using linear programming method. As a result, we could conduct long-term projection on CO2 emissions from transportation sector for each country in the different socio-economical situation.

Long-term projection on CO2 emissions from transportation sector in Asia region