Cambridge Heath and London Fields History
Liverpool St Feb 1874,
Bethnal Green May 1872 (1.25miles)
Cambridge Heath May 1872 (1.75m)
London Fields May 1972 (2.5m)
Hackney Downs May 1872 (3m)
1938-39 colour-light signals and continuous track circuits fitted north of Bethnal Green.
Trains services were so regular in 1949 that times were not noted in Bradshaw.
Enfield Town first departure was 4.11am and last was 11.35pm.
Modernisation and electrification
1955 Modernisation plan listed Enfield line and others for electrification.
Work began in 1956.
Contracts placed in 1957 for rolling stock and electrification equipment for Chenford (Chingford, Enfield, Hertford East and Bishops Stortford).
Work started in 1958. 28 stations lengthened to take 9-car trains in inner stations and 8-cars on outer.
30 bridges raised.
Power supply of 6.25kV to Cheshunt and then 25kV. Trains were equipped for both.
Hackney Downs power box built 1960.
Electric trains started running on 14 November 1960.
45 route and 111 track miles converted.
Lea Valley Line (Clapton to Cheshunt) electrified in 1969
1980 25kV throughout.
1960 Chingford and Enfield lines timetable combined. Enfield trains served CH and LF.
Teething troubles meant that a full service was not provided until 1963
1981 Timetable revisions plus a spate of train and signalling failures.
1983 10-minute frequency restored to the Enfield line. "Jazz" train service.
1996 May: Only 38 trains per day at peak times only
1996 December: Peak service increaed to 44 trains a day
1998 May: Daytime trains introduced to boost service to 64 trains per day
2001 May: Evening and Saturdays services introduced to make 82 trains per day
2005 December: Extra peak services plus four trains per hour every day Mondays to Saturdays. 160 trains per day. One train per hour on Sundays.
2006 December: Sunday trains increased to two an hour.
Eastern Electric by John Glover Ian Allan 2003 0 71102934 2
London Suburban An Illustrated History of the capital's commuter lines since 1948 by Frank Hornby 1995 Silver Link Publishing