CO₂ emission from transportation sector in Japan has been reducing due to increasing fuel price, economic recession and CO₂ mitigation policy mix, which includes fuel economy regulation and tax exemption for purchasing better fuel economy vehicles. Japanese government makes further CO₂ reduction polices with tightening fuel economy regulation, because Japanese government intends to certainly reduce CO₂ emission from transportation sector. Existing researches, however, show that policy mix based on fuel economy regulation and tax exemption for buying new fuel-economy-improving car losses social welfare. Fuel economy trading has been gotten a lot of attention as an alternative policy for fuel economy regulation. This study evaluates introduction of fuel economy trading policy, a kind of tradable permit policy in transportation sector, to Japan. I use computational partial equilibrium model to simulate and evaluate effects of the policy. As a result, fuel economy trading policy doesn’t undermine social welfare than fuel economy regulation, but reduction of CO₂ emission by the policy is less than by the regulation.

Considering induced/developed traffic means that it relaxes the assumption in the evaluation/forecast of the conventional transportation plan, and changing assumption surely ends up with the changes in the results. In this paper, we simulated the change of the benefit by the further development of road networks in the Tokyo Metropolitan area with the different assumptions. As result, we found that including induced/developed traffic does not change user benefit a lot, while CO₂ emission are subject to much more change compared to the conventional way.

Dramatic changes in international trades were analyzed to identify recent development of Asian manufacturing network and interdependency among Asian countries in this regard. Current situation of Asian transport network was also reviewed, focusing on road and railway sectors, in terms of both supply side and demand side for discussing possible future needs to further invest in soft infrastructures and hard infrastructures in the context of creating trans-Asian seamless transport network. Finally possible actions to be taken by parties concern were recommended for developing Asian common transport policy.

Information on the trend of ship dimensions at intra-East Asia sea route is very little. However, an increasing percentage of Japan's foreign trade is with East Asia. Therefore, in this report, the trend of full cellar container ship dimensions at intra-East Asia sea route was quantitatively analyzed.

Deploying new, large container ships into trunk line has the cascading effect, which leads to redeploying smaller existing ship to other sea routes. The impact of this cascading effect to the enlarging the size of container ship at intra-East Asia sea route was also analyzed.

An increase of automobiles in Japan slowed down year by year recently. The increasing rate of last year (2006) was only 0.2%. Demands for new automobiles of the first half of this fiscal year (from March to September of 2007) decreased down about 91% compared with the same term of last year. This report reviews the process of Japan’s motorization and saturated status of Metropolitan Area such as Tokyo Metropolitan Area, Osaka Metropolitan Area, etc and tries the future prospect of automobile in Japan.

Sightseeing Railway, mainly cable car still plays a significant role as access mode to pleasure spot. However owing to motorization and diversification of leisure, their financial environment is extremely severe. And some lines were forced to a stop. This paper reports their peculiarity of operation and correlation of passenger demand and customer traffic. I suggest a wish for maintain or activation of Sightseeing Railway.