GWR Signalling Works

Published: 01 February 2024


Signalling works in Devon and Cornwall to improve safety and reliability and offer the potential to add more trains for the Mid Cornwall Metro scheme.

This work will see the replacement of older-style signals and equipment with brand-new, digital technology. For this work to be done, the Cornish Main Line will be temporarily closed in phases between Tuesday 27 February and Sunday 10 March with buses replacing trains on various routes in the county. We’ll also have ticket acceptance in place on certain local bus routes. 

In Devon, the line between Totnes and Plymouth will be closed from Saturday 16 March to Friday 22 March. This will extend to Exeter St Davids over the weekend of 17/18 March as well as after 2140 on most weeknights. Rail replacement road transport will operate between affected stations. We will also run non-stop buses between Tiverton Parkway and Plymouth throughout the week. 

Full details on both sets of work are available at 

The Night Riviera sleeper service will continue to be affected during both sets of work – more information is available on our dedicated webpage at 

Online journey planners have been updated and we’ll also be letting customers know through onboard and station announcements, station posters, and traditional and social media.


Thomas Lydon | Public Affairs Manager | Great Western Railway