The new train, equipped with 48 cameras, can inspect the rails and overhead lines as it travels at a speed of up to 320 kilometres per hour, the same maximum speed as passenger bullet trains and faster than the 275 kph East-i. Soar will be used on the Tohoku, Joetsu and Hokuriku shinkansen lines, as well as the Akita and Yamagata shinkansen lines, which share some sections with local trains. It will also carry a newly developed device that estimates wheel and rail pressure and identifies which rail distortions need to be fixed first.