Abstract
The objective of this study is to estimate safety improbement benefit by introduction of platform screen door using Contingent Valuation Method (CVM). Questionnaire survey of railway users to understand their perceptions and willingness to pay (WTP) for improvement project was conducted in Tokyo metropolitan area. The results of this study show that railway users recognize the various effects and their WTP is 24.8 yen per one way trip, breakdown for enhancement of safety are 71.9 % of the total. Safety improbement benefit for 30-year is estimated 2212 billion yen.