Estimation of improved accessibility benefit for new railway station

As housing development has continued around railroad line recently, demands for new railway stations by local residents are frequent; however, further progress of projects has failed due to a lack of B/C ratio feasibility. The purpose of a new railway station will be used to shorten railway access distance for users; however, in the existing appraisal system for transport facility investment, while re-forecasting mode split and trip assignment are means for establishment of new stations, it was decided that there are structural problems that do not reflect the business impact by establishing a benefit through the valuation of travel time savings. In this study, for reduction of access trip time for railway transit via establishment of new railway stations, car/taxi, bus, and walking were categorized as access trips to establish the access mode split and define the valuation of access travel time savings. As a result of using a virtual network to analyze the scale of accessibility improvement benefit, when distance of station-to-station is increased by 1km from 2km to 10km, compared to the valuation of travel time savings of the current guideline, there is an approximate improvement of 12~120%; as the current (Without project) distance of the railway stations gets longer, it was found that the size of the valuation of access travel time savings of new railway stations is much greater than other benefits.