By using a travel demand forecasting model that covers both inner-city and inter-city transportations of whole of Japan, we discuss economically efficient regional CO₂ emissions reduction quotas. We calculate the CO₂ emissions reduction by introducing a fuel tax as a countermeasure against global warming at each region and illustrate the results can be applied to decide the regional quotas. In our analysis, it has been shown that the CO₂ emissions reduction per capita due to the taxation, which is equal to the region’s reduction quota per capita, is bigger in rural areas than in urban areas.

A bus station and a bus stop compose a part of the infrastructure indispensable to bus service. In the UK they conceived and have worked out a scheme to accelerate fair competition in the local bus service. Its aim is to allow the juniors to use its bus stations and bus stands on equal terms with the senior bus operators. Though the UK’s successful outcome has been brought in their own social-economic and cultural context, their experience can be a good example for Japan in managing the fair bus market system.

Yardstick regulation with multiple regression analysis was implemented in Japan’s railway industry in 1997. We tested statistical reliability of the regression models. We can say that some parameters have problems in significance and signs now because fifteen years have passed after the implementation of the regression models. We could not find a significant difference in the regression analysis between the railways in Tokyo metropolitan area (Kanto area) and Osaka metropolitan area (Kansai area).