Exeter Traction Maintenance Depot (or Exeter TMD) is a railway Traction Maintenance Depot situated in Exeter, Devon, United Kingdom and is next to the city's main St Davids station. The depot is operated by Great Western Railway. There are 12 roads, the maintenance building itself can hold 2 sets of 2 × 23 m vehicles. Behind a remaining wall from the previous Steam shed is where the Civil Shed is located, and the Premier shed (seldom used) is nearest the station.