Sudogwon
Great Train Express (GTX) is a planned higher-speed commuter rail network in the Seoul Capital Area project consisting of three separate lines, named GTX A, GTX B and GTX C, and scheduled for completion in 2025. As currently planned (2021), GTX B will connect Songdo in Incheon with Maseok in Namyangju, with trains calling at eleven stations in between including Yeouido. According to the Korean government, GTX B will be completed in 2021.