West of England line
Templecombe station in February 2010
Overview
Status	Operational
Owner	Network Rail
Termini	Basingstoke Exeter St Davids
Stations	21 (Basingstoke to Exeter St Davids)
Service
Type	Suburban rail, Heavy rail
System	National Rail
Operator(s)	South Western Railway
Depot(s)	Salisbury TMD
Rolling stock	Class 158 "Express Sprinter" Class 159 "South Western Turbo"
Technical
Line length	120 mi 77 ch (194.67 km) [Basingstoke to Exeter St Davids] 172 mi 12 ch (277.05 km) [London to Exeter St Davids via SWML]
Number of tracks	2 (Basingstoke–Salisbury) 1 (Salisbury–Pinhoe) 2 (Pinhoe–Exeter St Davids)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Operating speed	90 mph (140 km/h) maximum
Route map (Click to expand)

West of England line
Legend
miles 0¾ London Waterloo South West Main Line Reading–Basingstoke line to Reading 47¾ Basingstoke Basingstoke & Alton Light Rly Worting Junction and Battledown Flyover South West Main Line to Southampton Oakley 55½ Overton 59¾ Whitchurch Didcot, Newbury and Southampton Railway Hurstbourne Fullerton to Hurstbourne Line to Southampton via Longparish Sprat and Winkle Line to Southampton via Andover Town 66¼ Andover MSWJR (Red Post Junction)   72½ Grateley Amesbury and Military Camp Light Railway to Bulford Camp Idmiston Halt Porton Wessex Main Line to Southampton Fisherton Tunnel 83½ Salisbury Wessex Main Line to Bristol Temple Meads Wilton South Barford St Martin Viaduct Dinton Fovant Military Railway Tisbury Loop 96¼ Tisbury Semley 105¼ Gillingham Gillingham Viaduct Gillingham Tunnel Somerset & Dorset Joint Rly to Bath │ to Bournemouth 112¾ Templecombe Milborne Port 118¾ Sherborne Heart of Wessex Line to Castle Cary Yeovil Pen Mill Heart of Wessex Line to Weymouth Yeovil Town Yeovil–Taunton line 122½ Yeovil Junction Sutton Bingham Halt 131½ Crewkerne Crewkerne Tunnel Chard Junction Chard branch line 144½ Axminster Lyme Regis branch line Seaton branch line Seaton Junction Honiton Tunnel 154¾ Honiton Roundball Halt River Otter viaduct Sidmouth Railway 159¼ Feniton 163¾ Whimple 166¼ Cranbrook Broad Clyst 168½ Pinhoe Whipton Bridge Halt Avocet Line to Exmouth Exmouth Junction Mount Pleasant Road Halt Blackboy Tunnel 171¾ St James Park 171½ Exeter Central St David's Tunnel Exeter–Plymouth line to Plymouth 172¼ Exeter St Davids Bristol–Exeter line to Taunton Cowley Bridge Junction Tarka Line to Barnstaple

The West of England line (also known as the West of England Main Line) is a British railway line from Basingstoke, Hampshire, to Exeter St Davids in Devon, England. Passenger services run between London Waterloo station and Exeter; the line intersects with the Wessex Main Line at Salisbury. Despite its historic title, it is not today's principal route from London to the West of England: Exeter and everywhere further west are reached more quickly from London Paddington via the Reading–Taunton line.

Once all sections had been incorporated into the London and South Western Railway, the sections and branches were:

• Basingstoke to Salisbury
  • Basingstoke to Andover, opened 3 July 1854
  • Andover to Salisbury, opened 1 May 1857
  • Branches:
    • Basingstoke and Alton Light Railway opened June 1901, closed 30 May 1936
    • From Hurstbourne and Andover to Romsey and on to Eastleigh and Southampton: both closed. Link via Longparish opened 1 June 1885; closed 6 July 1931.
    • At Andover, junction with the Midland and South Western Junction Railway to Cheltenham
    • Bulford Camp branch
    • Salisbury to Romsey, with a branch to Bournemouth
    • At Salisbury, the Great Western Railway (GWR) line from Westbury and Bristol had its own terminus: the L&SWR continued the route southeast towards Southampton. This route is known nowadays as the Wessex Main Line.
• Between Salisbury and Exeter:
  • Salisbury to Yeovil, opened 2 May 1859
  • Yeovil to Exeter, opened 19 July 1860
  • Branches:
    • To Yeovil Town (joint station with the GWR)
    • To Chard (joint station with the GWR)
    • To Lyme Regis from Axminster
    • To Seaton from Seaton Junction (closed)
    • To Sidmouth from Sidmouth Junction (also alternative route to Exmouth)
    • To Exmouth from Exmouth Junction near Exeter

The Beeching Report identified the duplication of routes from London to the West Country, therefore British Rail downgraded the line in 1967 by reducing long sections west of Salisbury to single track.^[1] This restricts the number of trains on this section, but passing loops have been added to alleviate this.

Trains between London Waterloo and Exeter run on the South West Main Line as far as Basingstoke. The West of England Line diverges at Worting Junction, a short distance west of Basingstoke.

Network Rail splits the line into two sections: the first section from the line's start at Worting Junction to Wilton Junction (near Salisbury) is classified as "London & SE commuter", while the section from Wilton Junction to Exeter is a "secondary" route. The secondary route west of Salisbury is predominantly single track, but has three sections of double track and four passing loops.^[2] The double track sections and passing loops are: a loop just outside Tisbury station, a loop at Gillingham station, double track from Templecombe to Yeovil Junction, a loop at the former Chard Junction station, 3 miles of double track centred on Axminster, a loop at Honiton station, and double track from Pinhoe to Exeter.

The line's speed limit is mainly 80–90 mph over its whole length from Basingstoke to Exeter.^[3] Speed is further limited around the junctions. The first section to Wilton Junction has a listed line speed of 50–90 mph, and the secondary section to Exeter has a line speed of mainly 85 mph with parts at 70 mph.^[2]

When the line was first opened in 1854, Worting Junction was constructed as a flat junction.^[4] This required that down trains heading west and up trains from Southampton cross each other's paths. Initially this was not a great problem, however as traffic and speeds increased the junction became a bottleneck. To relieve this, a flying junction was provided to the south, opening on 30 May 1897. This changed the arrangement so that up trains from Southampton line now crossed over the up and down Salisbury lines on Battledown Flyover, 3+1⁄4 miles west of Basingstoke.

North of Worting Junction, stopping services to/from London Waterloo and CrossCountry services to/from the North of England via Reading use the outer pair of tracks, while express services to/from London Waterloo use the inner pair of tracks. The inner pair of tracks are unelectrified through the junction and continue towards the west to Salisbury and Exeter.

Passenger services are operated by South Western Railway using Class 159 and Class 158 trains. They generally run half-hourly from London to Salisbury and hourly to Exeter, calling at Clapham Junction and/or Woking and then most stations between Basingstoke and Exeter St Davids, although some smaller stations east of Salisbury and near Exeter have a reduced service.^[5][6]

The 2006 Network Rail South West Main Line Route Utilisation Strategy recommended building an extended section of double track from Chard Junction to Axminster, and a passing loop at Whimple. However, Network Rail's 2008 Route Plan^[7] was silent on the Whimple loop. The Axminster Loop is centred on Axminster station, and does not extend to Chard Junction as originally proposed. The line between Basingstoke, Salisbury and Exeter is not electrified.

Beyond Exeter, the line continued to Plymouth via Okehampton and Tavistock as the Exeter to Plymouth railway of the LSWR. This line is now partly closed, with the surviving sections downgraded to branch lines. The section from Exeter to Coleford Junction, near Yeoford, is still in use as part of the Tarka Line (a community railway, which continues to Barnstaple). The Dartmoor line runs from Coleford Junction to Okehampton, having reopened to regular passenger services in late 2021, after being run as a heritage railway from 1997 to 2019. The track is still extant to the former Meldon Quarry railway station to the west, where the track breaks. Tavistock lacks a rail connection, and the final section of the original main line, from Bere Alston, continues to Plymouth as part of the Tamar Valley Line.

• Exeter to Plymouth railway of the LSWR
• Southern Railway routes west of Salisbury

• Network Rail. "Route 3 – South West Main Line" (PDF). Business Plan 2006. Archived from the original (PDF) on 6 February 2012.
• Network Rail. "Route 4 – Wessex Routes" (PDF). Business Plan 2006. Archived from the original (PDF) on 29 September 2007.
• Network Rail. "Route 12 – Reading to Penzance" (PDF). Business Plan 2006. Archived from the original (PDF) on 26 September 2006.
• "(home)". Ordnance Survey. Archived from the original on 12 November 2008.

• R.V.J. Butt (1995). The Directory of Railway Stations. Sparkford: Patrick Stephens. ISBN 9781852605087.
• J.H. Lucking (1968). Railways of Dorset: an outline of their establishment, development and progress from 1825. Lichfield: Railway Correspondence and Travel Society. OCLC 31916.

• Johnston, Howard (22 April – 5 May 1998). "Unlocking the potential to Exeter". RAIL. No. 329. EMAP Apex Publications. pp. 20–24. ISSN 0953-4563. OCLC 49953699.