Wikipedia
Gyeongin
The name Gyeongin refers to the Seoul- Incheon corridor in South Korea, and is used as a name for the Gyeongin railway line, the Gyeongin Expressway, and the Gyeongin Canal (which was completed in 2011 and is now called the Arabaetgil Canal), all of which link Seoul—the South Korean capital and largest city—to nearby Incheon—the second-largest port and fourth-largest city. The name "Gyeongin" is formed from the first characters in the names " Gyeongseong" (the Korean form of the former Japanese name for Seoul) and "Incheon."