This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Densely populated metropolitan areas require a well-functioning transit system to serve the trave... more Densely populated metropolitan areas require a well-functioning transit system to serve the travel demands in the area. Because of this, transit networks have evolved with the growth of the metropolis and this has entailed changes in the network's accessibility. This study aimed to explore the changes in accessibility following major transit network expansions in the Gwangju Metropolitan Area. The time distance based accessibility was calculated at three different transit provision stages. The global accessibility measure indicated that the construction of subway line 1 would improve the transit accessibility significantly, but the second line would not have as much impact as line 1. The spatial distribution of accessibility changes appeared to deliver a similar message. However, our findings contradicted with the criticism of the current subway line 1, whose modal share has stayed quite low since its operation, and the expectation of the planned subway line 2. This might be due to the limitations of our definition of accessibility, but it also could be understood that the under-use of subway line 1 hindered the realisation of accessibility impacts in reality.
Journal of the Economic Geographical Society of Korea, 2019
In Seoul, the subway system has been in use since 1974 and is the most frequently used travel mod... more In Seoul, the subway system has been in use since 1974 and is the most frequently used travel mode accounting for approximately 40% of passenger journeys in 2015. As such the subway system is widely adopted by people and therefore, can have great impacts on their everyday life. However, it is easily noted that transit resources are not distributed spatially uniform, in other words, not all parts of the city gain the same benefits from their networks. This study aims to examine the inequity of spatial distribution of subway networks based on accessibility. Accessibility of subway networks are calculated based on the time-distance between stations and then equity is measured using the Gini index. Resulted map of subway accessibility shows that the benefits are not evenly distributed in Seoul with a pattern of highly accessible core-less accessible periphery areas. Also the subway accessibility network has fairer distribution against the employees' distribution rather than the distribution of general population or possibly transit dependent groups.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Densely populated metropolitan areas require a well-functioning transit system to serve the trave... more Densely populated metropolitan areas require a well-functioning transit system to serve the travel demands in the area. Because of this, transit networks have evolved with the growth of the metropolis and this has entailed changes in the network's accessibility. This study aimed to explore the changes in accessibility following major transit network expansions in the Gwangju Metropolitan Area. The time distance based accessibility was calculated at three different transit provision stages. The global accessibility measure indicated that the construction of subway line 1 would improve the transit accessibility significantly, but the second line would not have as much impact as line 1. The spatial distribution of accessibility changes appeared to deliver a similar message. However, our findings contradicted with the criticism of the current subway line 1, whose modal share has stayed quite low since its operation, and the expectation of the planned subway line 2. This might be due to the limitations of our definition of accessibility, but it also could be understood that the under-use of subway line 1 hindered the realisation of accessibility impacts in reality.
Journal of the Economic Geographical Society of Korea, 2019
In Seoul, the subway system has been in use since 1974 and is the most frequently used travel mod... more In Seoul, the subway system has been in use since 1974 and is the most frequently used travel mode accounting for approximately 40% of passenger journeys in 2015. As such the subway system is widely adopted by people and therefore, can have great impacts on their everyday life. However, it is easily noted that transit resources are not distributed spatially uniform, in other words, not all parts of the city gain the same benefits from their networks. This study aims to examine the inequity of spatial distribution of subway networks based on accessibility. Accessibility of subway networks are calculated based on the time-distance between stations and then equity is measured using the Gini index. Resulted map of subway accessibility shows that the benefits are not evenly distributed in Seoul with a pattern of highly accessible core-less accessible periphery areas. Also the subway accessibility network has fairer distribution against the employees' distribution rather than the distribution of general population or possibly transit dependent groups.
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