Reusing containers and tableware such as using reuse cups in event stadiums is practiced in many countries such as Germany, Korea and Japan, as environmental problems become more and more concerned today. Instead of the enclosed places of event stadiums, this paper explores the feasibility of introducing reuse bento plates to convenience stores of small and medium-sized cities in Japan. By applying the LCA results of the CUP CONCEPT Company of Germany, it proves that the negative environmental impact can be reduced by the proposed reuse scheme. Moreover, the possible problems of actual implementation are also discussed.

In recent years, from the perspective of the finite resources of nature, transition to stock-based society which reduces the amount of material input and waste is expected. Material cycle in the construction sector is large, so it is essential to reduce the material flow in this sector to reduce environmental impacts. In order to understand the trends in the material flow of the construction sector, it is necessary to understand the future demand for stocks based on social factors. In this study, we focus on building structures and organize the factors affecting the demand for existing building. Also, we estimate future demand for building stock in each of the multiple scenarios that reflect the different social perspectives. As a result, demand for stock building per capita is different from nearly 10 tons in each scenario.

The design of the pedestrian street in Tsukuba Science City, which is 48 kilometers in length, was based on the idea of traffic segregation. Recently, however, residents fear using this tree-lined street, and often avoid it. We utilized the survey for the amount of "Eyes on the Street" and analyzed the result to assess whether the street is safe, from the viewpoint of elementary school children and women.

In this report, we investigated Basel, and executed two field survey and hearing investigations. We brought the current state of public traffic of Basel together and arranged the citizens and cooperation of the administration and concrete activation procedure. It has been understood to show the rate that scale of assessments of public transportation is very high and resident's satisfaction rating is high in Basel. Moreover, the system that finally decides it by referendum (citizens vote)"exists, and all residents are participating in the process of the plan decision about the measure.

The statistical survey is one of the data sources with long history, huge accumulation, and high reliability. However, usage of the databases is often limited to the policy making on national level, while regional/municipal governments and other private organizations are not often aware of the existence. This paper focuses on the 53 kinds of "Key statistics" conducted by the Japanese government, summarizes the properties respectively, and examines the possibility of usage from the view of constructing urban information systems.