the speed test actualy started from November 26, the trainsets, includes a CRH2C, which is a upgrade version of Kawasaki's CRH2A, as a track inspection train, CSR's CRH380AL and Siemens/CNR's CRH380BL.
the 380km/h test, which is the designed top operation speed, achieved by November 26, top speed reached 452 km/h by November 27, 455.5 km/h by November 28,and exceeded 480 km/h by November 29.
during the December 3 test, the CRH380AL actually traveled 220 km in 34 minutes, at average speed of 388 km/h (209 mph), speed of 480+ km/h lasts for 7 minutes, that means it at least traveld 56.7 km (35.23 miles)under such a speed. shows how well the rail constructed .