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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Su Min Hong1,2, Oek Seok Jeon1 and Young Soo Na1
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DOI:doi: 10.17265/2328-2142/2024.03.003
1. Metro Research Institute, Seoul Metro, Seoul 04806, Korea
2. Department of Transportation Engineering, University of Seoul, Seoul 02504, Korea
Seoul Metro is Seoul’s leading metro company, transporting up to 3 billion people annually. However, future ridership is expected to plummet due to an aging and shrinking population with one of the fastest declining total fertility rates in the world. The COVID-19 pandemic in 2019 accelerated this phenomenon. On the contrary, the e-commerce and home delivery industries have developed significantly since COVID-19. Seoul’s current logistics infrastructure cannot handle it. Under the inflection point of declining passenger transportation demand and increasing urban logistics demand, urban rail operators need new growth engines. Therefore, it is necessary to consider the introduction of an UULS (underground urban logistics system) that transports parcels instead of passengers through urban railways. If the UULS becomes a reality, it can be expected to secure scarce logistics land in cities, protect the environment and prevent traffic congestion by operating eco-friendly mass urban transportation, and acquire new revenue sources for urban rail operators. The UULS’s B/C ratio is 1.32. The sensitivity analysis shows that the ratio is above 1 in most cases where the unit cost of transportation is not significantly reduced.
UULS, metro, new growth engines, COVID-19, traffic congestion, environment.
Journal of Traffic and Transportation Engineering 12 (2024) 130-140 doi: 10.17265/2328-2142/2024.03.003
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