KTX
…a high-speed train running on conventional rail above 420 km/h (260 mph). It was further developed into commercialized variants, namely KTX-Eum and KTX-Cheongryong, with respective maximum service speeds of 260 km/h (160 mph) and 320 km/h (200 mph), which entered into KTX services in 2021 and 2024, respectively…