Sutton Loop Line

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Sutton Loop Line
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Sutton platform 2 looking towards West junction with the St Helier Line
Overview
StatusOperational
OwnerNetwork Rail
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  • SMS1 (Streatham South Jn–Wimbledon)
  • SMS2 (Wimbledon–Sutton)
LocaleLondon Boroughs of Merton and Sutton
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Stations14
Service
TypeHeavy rail
SystemNational Rail
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Operator(s)Govia Thameslink Railway
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Technical
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Track gauge1,435 mm (Page Template:Fraction/styles.css has no content.4 ft 8+12 in) standard gauge
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Route map
File:Sutton Loop Line.png
(Click to expand)

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Page Template:Routemap/styles.css has no content.Lua error in package.lua at line 80: module 'Module:Navbar/configuration' not found. The Sutton Loop Line,[1] also known as the Wimbledon Loop,[2] is a railway line that diverges from the Portsmouth Line[1] at Streatham South junction and rejoins it near Sutton station. Trains leave southwards from Streatham to enter the loop and then return going northwards. The short section between West Sutton station and West junction is known as the "Wall of Death",[3] possibly due to the very steep concrete walls to the cutting on both sides and the sharpness of the curve which resemble the motorcycle ride at a funfair.

Stations

In a clockwise direction round the loop, the stations are:

Infrastructure

Traction current is supplied at 750 volts DC via the third rail. The supply for this is overseen by Selhurst Electrical Control Room.[1] Signalling is Track Circuit Block with multiple aspect colour light signals, controlled from Three Bridges rail operating centre. The line is double track throughout, except where a short bi-directionally signalled single line section passes through Wimbledon station platform 9. Originally the Down St Helier Line used platform 10 at Wimbledon, but this is now used for the Tramlink terminus which currently comprises a single platform at the southern end, split into two sections so two trams can be held at the same time.[4]

History

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Services

Thameslink runs services from St Albans, via Blackfriars round the loop. Clockwise services are described as "Sutton via Mitcham Junction" and anti-clockwise as "Sutton via Wimbledon". Occasionally, during service disruption or when the core section of the Thameslink route is closed, Sutton Loop services start and end at London Blackfriars.

Recent proposals were to increase the frequency of the Thameslink service by terminating at Blackfriars. This would have allowed the trains through the core section to be replaced with longer trains which could not use the loop, but this did not proceed due to objections from loop passengers about the withdrawal of their through service.[5]

References

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  1. ^ a b c d Page Module:Citation/CS1/styles.css has no content.Southern Appendix. Vol. Module SO. Network Rail. April 2001. p. 1/272. A0260A03.
  2. ^ Page Module:Citation/CS1/styles.css has no content."Government safeguards future of the Wimbledon Loop" (Press release). Department of Transport. 21 January 2013.
  3. ^ Quail Map 5 - England South & London Underground [page 22] September 2002.
  4. ^ Page Module:Citation/CS1/styles.css has no content."Wimbledon to Croydon tram link - Transport for London". www.tfl.gov.uk. Archived from the original on 28 March 2014.
  5. ^ Page Module:Citation/CS1/styles.css has no content.iHeron (9 February 2011). "Direct Trains May End: Thameslink Programme". Herne Hill. Archived from the original on 9 December 2018. Retrieved 23 April 2026.