Chungcheong Region Metropolitan Railway
Overview
The Chungcheong Region Metropolitan Railway is a metropolitan railway network construction project promoted to connect Daejeon Metropolitan City (대전광역시), Sejong Special Self-Governing City (세종특별자치시), Chungcheongbuk-do (충청북도), and Chungcheongnam-do (충청남도) into a single living area. By linking existing mainline railways such as the Gyeongbu Line, Honam Line, and Chungbuk Line with the Daejeon Urban Railway, it aims to shorten commuting and school travel times within the Chungcheong region and improve accessibility between Cheongju International Airport and major urban centers. The central government and local governments are pursuing the project in stages by reflecting it in the National Railway Network Construction Plan and the Metropolitan Transportation Basic Plan.
Key Details
Background
The Chungcheong region has seen rapid population and industrial restructuring due to the launch of Sejong City and the growth of major cities such as Daejeon, Cheongju, Cheonan, and Asan. However, intercity travel relies heavily on road transport, causing severe congestion during commuting hours, and the public transit transfer system is fragmented. The Chungcheong Region Metropolitan Railway was conceived as infrastructure to address these structural limitations and form a metropolitan economic zone linking Sejong, Daejeon, and Cheongju.
Route Plan
Representatively, the first phase of the Chungcheong Region Metropolitan Railway connecting Daejeon–Sejong–Cheongju International Airport is being discussed as a core route. This route aims to simultaneously secure airport accessibility and metropolitan commuting convenience by connecting downtown Daejeon, Sejong City, and Cheongju Airport by rail. In the future, expanding the network toward Cheonan–Asan and Gongju–Nonsan is under consideration, and both utilizing existing railway lines and constructing new lines are being discussed together.
Project Status
The Chungcheong Region Metropolitan Railway is promoted through procedures such as preliminary feasibility study, establishment of a basic plan, design, and commencement of construction after being reflected in the National Railway Network Construction Plan. Major issues include the project's economic feasibility, cost sharing, route alignment, and transfer hub locations, and Daejeon City, Sejong City, Chungcheongbuk-do, and Chungcheongnam-do are discussing route connections and improvements to the metropolitan transportation system through a joint consultative body. In particular, commuting demand between Sejong City and Daejeon City, the increase in Cheongju Airport users, and connectivity with the Chungbuk Innovation City serve as important variables for the project's feasibility.
Expected Effects
Once the metropolitan railway is built, the road-centered travel structure is expected to shift to a railway-centered one, alleviating traffic congestion and reducing carbon emissions. In addition, as commuting times among Sejong, Daejeon, and Cheongju are shortened, the mobility of workers and businesses is expected to increase, and improved hinterland access to Cheongju Airport can strengthen the Chungcheong region's external connectivity. Furthermore, it is expected to help ease concentration in the Seoul metropolitan area and promote balanced development within the Chungcheong region.
Challenges and Issues
Major challenges for the project include enormous construction costs and the possibility of operating deficits, cost sharing among local governments, and controversy over duplication with existing railways. In addition, if station-area development and the transfer system are not properly established, actual usage rates may be low, so linkage plans with urban railways and buses are as important as route construction. Environmental impacts and securing resident acceptance are also factors that determine the pace of the project.
Recent Developments
In 2024–2025, the Chungcheong Region Metropolitan Railway project is continuing discussions on preliminary feasibility studies and basic plan establishment as it goes through follow-up procedures of the National Railway Network Construction Plan. Local governments in the Chungcheong region have submitted joint proposals for early commencement of the metropolitan railway and are concretizing project feasibility reinforcement and transfer hub plans for the Sejong–Daejeon–Cheongju Airport section. In addition, linkage with the Great Train eXpress (GTX), revitalization of Cheongju Airport, and securing consistency with the Chungcheong Region Metropolitan Transportation Basic Plan are emerging as major policy issues. The implementation schedule for each route is expected to vary depending on the government's future fiscal investment direction and the results of consultations with local governments.
Related Topics
- [[Daejeon Urban Railway]]
- [[Sejong Special Self-Governing City]]
- [[Cheongju International Airport]]
- [[National Railway Network Construction Plan]]
- [[Metropolitan Transportation]]