Gauge Change Train
The Gauge Change Train (GCT) (Japanese: フリーゲージトレイン; lit. 'Free Gauge Train') was a Japanese research and development project launched in 1994 to create a high-speed train equipped with variable-gauge axles, enabling through operation between the 1,435 mm (4 ft 8+1⁄2 in) standard gauge Shinkansen network and the 1,067 mm (3 ft 6 in) narrow-gauge conventional rail network. Three prototype electric multiple unit (EMU) trains—two three-car sets and one four-car set—were constructed for testing.