GTX-D Y-Shaped Line, B/C 1.18... Assemblyman Heo Jong-sik "Must Be Reflected in the 5th National Railroad Network Plan"
Economic Feasibility Proven in Incheon International Airport Interim Service
'Double Y-Shaped' Route Connecting Incheon Airport to Paldang and Yeoju
The feasibility study results showed that the GTX-D (Western Metropolitan Express Railway) Y-shaped line is economically viable.
According to the 'Interim Report on the Study for Expanding the Incheon International Airport Railway Network' received by Democratic Party lawmaker Heo Jong-sik (Incheon Dong-gu·Michuhol-gu Gap) from Incheon International Airport Corporation, the B/C (benefit-cost) ratio of the GTX-D Y-shaped line, which extends the GTX-D line (Gimpo Janggi~Bucheon Sports Complex) to Incheon Airport and Namyangju·Yeoju, was analyzed to be 1.18, exceeding the standard value of 1.0.
The route reviewed by Incheon International Airport Corporation is set with the basic section up to Seoul Samsung Station from the previously confirmed Western Metropolitan Express Railway line, and is in a 'double Y' shape connecting ▲Incheon Airport, Janggi~Bucheon Sports Complex (left Y branch) ▲Samsung Station~Namyangju (Paldang), Yeoju (right Y branch). The distance from Incheon Airport to Namyangju (Paldang Station) is 85.68 km, and to Yeoju (Yeoju Station) is 132.63 km, with the total project cost estimated at 10.0309 trillion KRW.
This line reflects President Yoon Seok-yeol's pledge to connect the GTX-D line to Incheon Airport and Hanam·Paldang, Suseo·Yeoju. The Ministry of Land, Infrastructure and Transport also plans to complete by December this year the 'Integrated Planning Study for Expanding Metropolitan Express Railways' that reviews the feasibility of new lines including GTX-E and F as well as this line.
Therefore, there is growing anticipation that the results of this study by Incheon International Airport Corporation may positively influence the Ministry of Land, Infrastructure and Transport's study. Since Incheon Airport, used by more than 300,000 people daily, is expected to see increased users after the completion of the 4th phase project, airport accessibility is expected to be greatly improved and contribute to the formation of an airport economic zone.
Previously, in the 'Pre-feasibility Study for Introducing Metropolitan Express Railways' conducted by Incheon City in 2021, the Y-shaped line connecting Incheon International Airport~Gimpo and Geomdan~Hanam City Hall was reviewed to require a total project cost of 10.0781 trillion KRW, and its economic feasibility (B/C) was analyzed as 1.03.
Lawmaker Heo said, "Since the economic feasibility of the GTX-D Y-shaped line has been proven by the study of Incheon International Airport Corporation, prompt progress is necessary," and added, "I will strongly urge related agencies to reflect this line in the 5th National Railway Network Construction Plan to alleviate urban traffic congestion in the metropolitan area including Incheon."
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Meanwhile, in July, Lawmaker Heo took the lead in proposing the 'Three Acts on Compensation for Damage from Underground Transportation Facilities,' which includes provisions for establishing separate surface rights and compensating for damage such as noise and vibration when deep GTX lines pass under residential areas.
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