Sutton Loop Line
Sutton platform 2 looking towards West junction with the St Helier Line
South of England
|Operator(s)||First Capital Connect
|Depot(s)||Bedford Cauldwell for FCC
Selhurst for Southern
|Rolling stock||Class 319
|No. of tracks||2
1 bi-directional line at Wimbledon
|Track gauge||1,435 mm (4 ft 8 1⁄2 in) standard gauge|
|Operating speed||Maximum 60 mph |
The Sutton Loop Line, now part of Thameslink, does not formally exist, but is the colloquial name for the circular route formed where the St Helier line diverges from the Portsmouth Line 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", 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.
In a clockwise direction round the loop, the stations are:
Traction current is supplied at 750 volts DC via the Third Rail. The supply for this is overseen by Selhurst Electrical Control Room. Signalling is Track Circuit Block with multple aspect colour light signals, controlled by Victoria Eastern Power Signal Box. The line is double track throughout, except where a short bi-directionally signalled single line section passes through Wimbledon station platform 9. This is due to the Croydon Tramlink terminus occupying one half of platform 10 (the original Down St Helier Line). The other half of the platform forms a 4-car bay for the St Helier Line.
First Capital Connect
FCC runs services from Luton and St Albans, via Blackfriars round the loop. Clockwise services are described as "Sutton via Mitcham Junction" and anti-clockwise as "Sutton via Wimbledon". Additionally during service disruption or when the core section of the Thameslink route is closed, FCC Sutton Loop services start and end at London Bridge low level station.
Southern runs a peak service round the loop (clockwise in the morning peak, anticlockwise in the evening peak) from London Bridge low level. It also runs regular services along the route between Sutton and Mitcham Eastfields.
- Network Rail (Apr 2001). Southern Appendix. Module SO. p. 1/272. A0260A03. Retrieved 2012-01-12
- Quail Map 5 - England South & London Underground [page 22] September 2002 (Retrieved 2012-01-12)