지하철 진·출입구 주변 보행환경 개선에 따른 편익 추정

Abstract

As green transportation gains popularity, walking environment induces citizen's concern. Especially, walking environment around subway stations is poised to change with highest priority because there are plenty of pedestrian population bumping each other as with the different purposes and directions. Amid subway station area being designed without taking the development density or land use types into a serious account, the walking environment has been kept decreasing continuously. In this study, we choose a case study site and analyze the pedestrian environment, estimating benefits of the walkability improvement near subway stations through CVM. Dichotomous choice question and Open-ended question are used for methods of payment. Additionally, the WTPs are derived with both logit and tobit model using SPSS and LIMDEP program. All models present that price,age, subway using frequency, education levels determines WTP with statistical significance. And we found out that as the price, age, subway using frequency, education levels get higher, the WTPs become higher. The WTP was estimated at 2,060￦/m in the Dichotomous choice question method and at 2,432￦/m in the Open-ended question method. We finally chose ￦2,060/m which is closer to the approximate value (1,816￦/m) estimated at non-parametric approach. For Seoul, the benefit was estimated about 261 billion won per year. Even though there are constraints in terms of the survey design and sampling size, it is significant in that we estimated public goods which are difficult to evaluate. In addition, by explaining citizens how we will improve pedestrian environment, it contributes to awaken public on the importance of walking environment.