Abstract
We examined the influential sphere of the representative subway stations in the new town cities, analyzed the change of subway user's behaviour and the accessibility by interval of time period, and analyzed the correlation between accessibility and distribution ratio of subway users in this paper. The important findings are summarized as follows: firstly, the average influential sphere of walking is analyzed as 530m from subway station, and the sizes of influential sphere are found out converging to the average as time goes on. Secondly, the ratio of walking is the highest among the transportation modes, and the ratio is increasing since 1994 continuously. The ratios of the short walking time to subway station are increasing in all subway stations. It means that the land use density and residents who live within 5 minutes walking distance are intensifying. Thirdly, the accessibility is found out improved continuously and this means that the land use of surrounding subway station become more intensive. Also, we found that the core subway area is 300m-360m from the station center through the correlation analysis between CAI(Complementary Accessibility Indexes) and arrival distribution. This paper has important significance because it can give some implication for the influential sphere of subway station in the new town planning through the analysis and forecast on the change of subway user's behaviour at the time of more than 10 years after the development of 5 new towns in the Capital region.