Analysis of information sources in references of the Wikipedia article "1號高速鐵路 (英國)" in Chinese language version.
Speed will be reduced to 225 km/h(140 mph) between Ebbsfleet and St Pancras, primarily for aerodynamic reasons in the tunnels.
Section 2, which has a line speed of 225 km/h
Maximum allowable speed; Maximum speed of any (interoperable or otherwise) operating on Section 2 of the HS2: Passenger 225km/h, Freight 140km/h
Section 2, which has a line speed of 225 km/h
Maximum allowable speed; Maximum speed of any (interoperable or otherwise) operating on Section 2 of the HS2: Passenger 225km/h, Freight 140km/h