Abstract
In this study, the factors influencing the choice of the type of urban railroad transportation in the metropolitan areas of Korea were analyzed. As the populations of metropolitan areas are expanding, the importance of rail transportation, which has a high travel reliability in terms of travel time, has increased, and various types of railroad systems have emerged accordingly. This study was focused on the choice behavior of travelers on local and express trains that use the same track and differ only in the number of stations and operating times. To compare the choice behavior of travelers between local and express trains, factors such as the waiting time on the platform and the in-car travel time were considered. We also investigated the system choice behavior for an existing express subway and high-speed rail trains in tunnels at a great depth in terms of horizontal access time (walking), vertical access time, in-vehicle travel time, and travel fare. For a high-speed rail built underground at a great depth of 50 m, the stated preference survey was designed, and data were collected in consideration of the Great Train Express being promoted in the Seoul metropolitan area by the Korean government. The results of this study are expected to be considered important data for improving the rail system design from the user’s perspective to increase the demand for urban rail transportation in metropolitan areas.
Highlights
In the past, South Korea implemented growth-oriented development policies to spur economic growth, which led to a rapid growth led by large cities and the metropolitan area of Seoul and urbanization triggered by population concentration
The model estimation results show that, among the statistically significant variables included in the model, additional waiting time on the platform for express trains compared to local ones, additional travel time for express trains compared to local ones, age (10s, 30s, and 50s and over), the average frequency of usage, and purpose of usage are found to meet the significance level and are deemed to be the factors affecting the choice between express and local trains
Wherein the choice of express trains is set as 1, if B is positive—indicated by a plus sign—it is more likely to be included in the choice of express trains, whereas if it is negative—indicated by a minus sign—it is more likely to be included in the category of no choice
Summary
South Korea implemented growth-oriented development policies to spur economic growth, which led to a rapid growth led by large cities and the metropolitan area of Seoul and urbanization triggered by population concentration. These are manifested in the data of the Korea National Statistical Office that show that the number of registered residents nationwide as of February 2017 stood at 517,000, with Seoul having. Seoul significantly increased along with the new town development, thereby substantially increasing the commuting population from Gyeonggi-do to Seoul [2,3].
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