High-speed rail

High-speed rail is a type of passenger rail transport that operates significantly faster than the normal rail traffic. Early Shinkansen trains had a top speed of , which is the world's first high-speed rail. Various definitions are used in different countries.
According to the European Union, high-speed trains must run at least on existing lines, and at least on newly built ones.
According to the United States Federal Railroad Administration, they should go above but there is no single standard, and lower speeds can be required by local constraints.
As of 2020, speeds of to are common in regular operation.