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Question to Department for Transport | Parli.uk

Questions
Question 1943782

Answered

Question

To ask His Majesty's Government what is the maximum allowable operating speed in the HS2 Phase 1 tunnels.

Asked by

Date asked

17 Sep 2026

To

Department for Transport

Answer

HS2 will now operate to a maximum permissible overall line speed of 320 km/h, this includes all tunnels on the route.

Answered on 8 Oct 2026