낙석대책공법 비용편익분석기법 개발

초록

In this study the cost-benefit analysis theory used in public economics is applied to the evaluation of the financial reasonability of rockfall mitigation. Falling rocks prone areas as like Young-dong line, Jung-sun line, Tae-baek line and Joong-ang line are selected for this analysis. And B/C, NPV and IRR analyses are executed to installations of rockfall prevention fences, walls, tunnels, and ring nets for the energy level of 50kJ, 100kJ. As the results of these analyses for railway falling rocks mitigations, it is possible to assure that the reasonability and investment of rockfall mitigation methods would be accomplished quantitatively by reduction of damage costs and clarifying financial benefits."