What's the gauge for the high speed rail?
In 1937, the International Railway Association stipulates: gauge of 1435 millimeters for the international standard gauge of 1520 mm above the gauge is broad gauge, 1067 mm gauge narrow gauge as following.
The rails of China's high speed rail are usually 1435 millimeters.
At present, although most countries use 1435 mm wide gauge, there are still more than 30 different gauges. From narrow to wide, 610 mm, 762 mm, 891 mm, 1000 mm, 1067 mm, 1372 mm, 2141 mm, 1435 mm, 1524 mm, 1880 mm, mm mm, etc..
