These days, not a few transportation infrastructure planning can not be implemented due to lack of residents' consensus or public acceptance. In this paper, I elucidate social psychological possibility to promote public acceptance of transportation planning while regarding the situation as a social dilemma (Fujii, 2003). It is discussed that people's perception of procedural fairness regarding governmental procedure and people's trust on government are social-psychologically important, and changeability of planning and appropriate apologizing for mistakes of the planning are crucial to increase public acceptance.

There are many instance of community opposition to land acquisition for public works in Japan. Such opposition is commonly about false necessity of the projects, damage of natural environment and land use, and lack of counter measure to minimize the environmental impact in surrounding areas. This paper analyzes the system of consensus building among residents in German national autobahn projects. The German system has four-steps of consensus building and decision. Each step has the systems of information disclosure and exchange of opinions. Decision procedure for finalizing the plan has the most important role to play for consensus building in public work projects, particularly for the smooth execution of land acquisition. In German system, all benefits should be adjusted, and decision procedure for finalizing the plan should go through official announcement and public inspection and hearing. This information includes effects and measures of works on each inhabitant. This system also guarantees stability and efficiency of the plan. This paper proposed adoption of this system and discussed problems

In this paper, the authors show a comprehensive dynamic scheduling and vehicle dispatch system, which enables just-on-time arrival of truck-mixers. The system can decides optimal shipping timing from the concrete plants considering two elements: travel time fluctuation caused by road traffic congestion, and delay of planned concrete placing process within construction sites. A prototype system using commercial mobile packet communication service (i-mode) has been developed and tested at the actual sites. Introduction of the system can reduce traffic congestion caused by waiting trucks around the sites, and improves the quality of concrete by the reduction of the waiting time.

The aim of this paper is to discuss urban regeneration by light rail transits adopting Setagaya Line in Tokyo as a case study. During the high economic growth era when light rails in Japan were abolished, Setagaya Line survived as a branch line. However, due to the advent of the matured society, the identity of Setagaya Line has been priorised under the necessity of the "sustainable" community. This paper introduces various recent countermeasures of promoting the level of service as a public transport and intimacy with surrounding communities, such as "flowering" and IC tickets "Setamaru". This is to discuss the paradigm shift of policy measures and strategies of the firms.