1. between Tiverton Parkway and Taunton
and
2. between Ivybridge and Totnes
See Cllr Prowse about 28 mins into this video of last week's town council meeting.
https://www.youtube.com/watch?v=sjriICyO82M
More info here about the rail infrastructure works (with accompanying disruption in service) via this link.
https://www.gwr.com/travel-updates/planned-engineering/SWupgrade