Planned engineering work will take place between Stirling and Perth from 00:01, Saturday 21 February 2026 to 23:59, Monday 23 February 2026, from 00:01, Saturday 28 February 2026 to 23:59, Sunday 01 March 2026, and from 00:01, Saturday 14 March 2026 to 23:59, Sunday 15 March 2026.