The KTX, or Korea Train Express, is a high-speed rail system in South Korea. It connects major cities, including Seoul, Busan, and Incheon, allowing passengers to travel quickly and efficiently. The trains can reach speeds of up to 300 kilometers per hour (186 miles per hour), significantly reducing travel time compared to conventional trains. Launched in 2004, the KTX has become a popular mode of transportation for both locals and tourists. It is known for its comfort, punctuality, and modern amenities, making it a convenient choice for long-distance travel across the country.