2008 Volume 1 Issue 2 Pages 76-87
Climate change mitigation policies have been implemented in the past decade for many industries. However, reduction of carbon dioxide emissions is difficult in the transportation sector in Japan. Since the use of private cars has been a major factor in increasing emissions, utilization of public transportation systems such as bus and train are suggested. This study intends to analyze whether the use of public transportation systems is effective in reducing emissions, and in which situations such use is effective. We use both nonparametric and parametric methods to investigate the relationships. The results show that using trains provides a possibility of emission reductions.
