Location Modeling of Population and Land-Use Change in Rural Area by New Expressway

Abstract

The purpose of this study is to analyze the impact on land-use and population change in a rural area close to the construction of a new expressway through location modeling with spatial interaction analysis. Chungbu Expressway, constructed in 1987, going through the southern area of Kyunggi Province from Seoul, Republic of Korea, was selected as a case expressway, and two cities and 18 county subdivisions in its surrounding area, as a case study area. To analyze the change in characteristics before and after the construction, land-use maps of 1986 and 1996 were collected, including census data for the years in cities’ and counties’ yearbooks. Remote sensing technology was applied to classify the land-use maps with six types of land use. A geographic information system was also used for spatial analysis, such as land-use and accessibility changes. A 5-km buffer zone from the tollgate of the expressway showed about two times the increase of urbanized, built-up areas than a 5-km buffer zone from the expressway. Accessibility from Seoul and cities was improved in most areas, which is accessing Seoul through the existing Youngdong Expressway. Ten rural areas showed increased population with an average accessibility of