Pages 265-266
We attach importance to the decision-making performance in risk assessment. Though conventional risk assessment is used in the operational stage, it is investigated to apply the risk assessment in the design stage of railroad train. Specifically, the design of ceiling-shelf module is considered. By introducing the risk evaluation, not only the evaluation of function of single part but also the total performance for safety can easily be treated. Besides, uncertainty property is also able to be included in the assessment. After the formulation of risk assessment is stated, the application for several decision-makings in ceiling-shelf module will be shown.