Great Eastern Main Line

The Great Eastern Main Line (GEML, sometimes referred to as the East Anglia Main Line) is a major railway line on the British railway system which connects in central London with destinations in east London and the East of England, including , , , and . Its numerous branches also connect the main line to , , , and a number of coastal towns including , , and .National Rail, Rail Services Around London & the South East, (2006)

Its main users are commuters travelling to and from London, particularly the City of London, which is served by Liverpool Street, and areas in east London, including the Docklands financial district via the London Underground and Docklands Light Railway connections at . The line is also heavily used by leisure travellers, as it and its branches serve a number of seaside resorts, shopping areas and countryside destinations. The route also provides the main artery for substantial freight traffic to and from the Port of Felixstowe and Harwich International Port, via their respective branch lines. Trains from also run into London via the GEML.Network Rail - Route 7 - Great Eastern (PDF)

The Elizabeth line, which was fully opened in November 2022, operates services from Shenfield to , via Liverpool Street, connecting Essex with Central and West London. Additionally, it provides a direct rail link between the GEML and the Great Western Main Line.

History

Eastern Counties and Eastern Union Railways (1839–1862) The first section of the line, built by the Eastern Counties Railway (ECR), opened in June 1839 between a short-lived temporary terminus at in the East End of London and , then in the Havering Liberty in Essex. The London terminus was moved in July 1840 to Shoreditch (later renamed Bishopsgate), after 1900 in the Metropolitan Borough of Bethnal Green, and at the eastern end the line was extended out to in the same year. A further of track was added out to by 1843. The original gauge for the line was , but this was converted to in 1844.

The section of line between Colchester and was built by the Eastern Union Railway (EUR) to standard gauge and opened to passenger traffic in June 1846. Its sister company, the Ipswich and Bury Railway, built a line to and this was completed in November 1846. Both companies shared the same office, many directors and key staff; it started operating as a unified company with the EUR name from 1 January 1847. An extension from a new junction at to opened in December 1849, although the position of the latter station was poor and a spur to allow some trains to operate into (Thorpe) station was opened to regular traffic in November 1851.

In the late 19th century, the double-tracked main line was expanded with additional tracks being added to cope with more traffic. In 1854, a third track was added between Bow Junction and Stratford to help accommodate London, Tilbury and Southend Railway services which at that time were operating via Stratford.

Until 1860, trains serving the town of Ipswich used a station called which was located south of the Stoke tunnel. The town's current station is located to the north of the tunnel.

The ECR had leased the EUR from 1854 but by the 1860s, the railways in East Anglia were in financial trouble and most were leased to the ECR; they wished to amalgamate formally, but could not obtain government agreement for this until 1862, when the Great Eastern Railway (GER) was formed out of the consolidation.

Great Eastern Railway (1862–1922) From November 1872, became a temporary terminus to relieve the main high level Bishopsgate station while the GER was building its new permanent terminus at Liverpool Street. The latter opened in stages from February 1874, beginning with the first four platforms, until it was fully open from November 1875. At that time, the original 1840 Bishopsgate station closed to passengers and was converted into a goods yard.

By the 1870s, suburbia in the Forest Gate area was developing quickly and, in 1872, suburban trains terminated at a bay platform at . These were followed by trains from Fenchurch Street in 1877. By 1882, these services had been extended and were terminating at Ilford, Romford or Brentwood.

In 1877, a fourth track was added between Bow Junction and Stratford and two goods-only tracks were added between Stratford and Maryland Point. This section was extended back to James Street Junction in 1884, but Bethnal Green to James Street did not follow until 1891. It was also in this year that two extra tracks were added between Bethnal Green and Liverpool Street, which were for the use of West Anglia Main Line services. These tracks were built through the basement warehousing associated with Bishopsgate station located above.

The line was quadrupled to Ilford in 1895 and out to in 1899.

In 1902, the quadruple track was extended from Seven Kings to Romford, but it was not until 1913 that four-tracking out to was suggested; the First World War caused delay to this plan. In 1903, the Fairlop Loop opened and a number of services that had previously terminated at Ilford were extended onto it. These services generally looped round and back to the GEML at Stratford (on the Cambridge line platforms).

London and North Eastern Railway (1923–1947) The GER was grouped in 1923 into the London and North Eastern Railway (LNER). In 1931-32, the LNER quadrupled the tracks to Shenfield which became the terminus for inner-suburban operation.

In the 1930s, a flyover was constructed just west of to switch the main and electric lines over, to enable main line trains to utilise Liverpool Street's longer west side platforms without having to cross east side suburban traffic in the station throat. The new arrangement also facilitated cross-platform interchange with the Central line at Stratford, with services commencing in 1946. Either side of the Ilford flyover there are single-track connections between each pair of lines, with the westbound track extending to and just beyond. The eastbound track extends as far as Ilford station. It was also envisaged that a flyover would be built at the country-end of the carriage sidings at to allow trains bound for the Southend Line to change from the main line to the electric line, instead of at the London-end of Shenfield as they do now.

Plans were drawn up in the 1930s to electrify the suburban lines from Liverpool Street to Shenfield at 1,500 V DC and work was started on implementing this. However, the outbreak of the Second World War brought the project to a temporary halt and it was not until 1949 that the scheme was completed with electrification being extended to in 1956.

During the war, the long-distance named trains were withdrawn; these returned afterwards with the reintroduction of the "Hook Continental" and "Scandinavian" boat trains to Harwich Parkeston Quay in 1945. The East Anglian (Liverpool Street – Norwich) was restored in October 1946, and in 1947 the "Day Continental" which pre-war had operated as the "Flushing Continental", recommenced operation.

British Railways (1948–1994) After nationalisation in 1948, the GEML formed part of the Eastern Region of British Railways.

The Summer 1950 timetable saw the introduction of a regular interval service between Liverpool Street and Clacton, which left Liverpool Street on the half-hour and Clacton on the hour. Summer Saturdays in 1950 also saw the introduction of the Holiday Camps Express workings to Gorleston, near Lowestoft. The latter half of 1950 and early 1951 saw the testing of new EM1 electric locomotives for use over the Woodhead Line between Manchester London Road and .

January 1951 saw the introduction of the Britannia class 4-6-2 express locomotives and a speeding up of services on the GEML. However, not everyone was a fan; British Railways' chairman Sir Michael Barrington Ward exclaimed "What? Send the first British Railways standard engines to that tramline? No!"

Twenty-three Britannias were allocated to the GE section and, in summer 1951, the Liverpool Street–Norwich service went over to an hourly clockface interval service.

The British Railways 1955 Modernisation Plan called for overhead line systems in Great Britain to be standardised at 25kVAC. However, due to low clearances under bridges, the route was electrified at 6.25kVAC. The section between Liverpool Street and Southend Victoria was completed in November 1960. Extensive testing showed that smaller electrical clearances could be tolerated for the 25kV system than originally thought necessary. As a result, it was now possible to increase the voltage without having to either raise bridges or lower the tracks along the route to obtain larger clearances. The route between Liverpool Street and Southend Victoria was converted to 25kVAC between 1976 and 1980.Glover, John (2003). "Eastern Electric", Ian Allan, London. .

By the late 1970s, the costs of running the dated mechanical signalling systems north of Colchester was recognised and, in 1978, a scheme for track rationalisation and resignalling was duly submitted to the Department of Transport. This was followed by a proposal, in 1980, to electrify the remainder of the Great Eastern Main Line.

The early 1980s saw track rationalisation and signalling work carried out in the Ipswich area and, on 9 April 1985, the first electric train consisting of two electric multiple units (EMUs) worked into Ipswich station. The previous year, another member of the class had been dragged to Ipswich by a diesel locomotive and was used for crew training. The first passenger-carrying train was formed of EMUs, which ran on 17 April 1985.

InterCity electric-hauled trains commenced on the route on 1 May 1985. electric locomotives initially only powered services between Liverpool Street and Ipswich; after a switchover, s would complete the journey between Ipswich and Norwich. This last section was finally energised in May 1987, when through electric services commenced.

In 1986, the line as far as became part of the Network SouthEast sector, although some NSE services actually terminated at Ipswich, whilst longer-distance Norwich services were operated by InterCity. Local services operating from the Ipswich and Norwich areas were operated by Regional Railways.

Privatisation era (1994 onwards)

Between 1997 and 2004, services into Essex and some into Suffolk were operated by First Great Eastern, whilst services into Norfolk and other Suffolk services were operated by Anglia Railways. Between 2004 and 2012, services out of Liverpool Street, except for a limited number of c2c trains, were all operated by National Express East Anglia. Since 2012, the franchise has been operated by Greater Anglia; in May 2015, the Shenfield metro stopping service transferred to TfL Rail, as a precursor to Elizabeth line services.

Liverpool Street IECC replaced signal boxes at Bethnal Green (closed 1997), Bow (closed 1996), Stratford (GE panel closed 1997), Ilford (closed 1996), Romford (closed 1998), Gidea Park (closed 1998), Shenfield (closed 1992) and Chelmsford (closed 1994). The system uses BR Mark 3 solid state interlockings, predominantly four-aspect signals and a combination of Smiths clamp-lock and GEC-Alsthom HW2000 point machines.

The first signal box to be closed and transferred to Liverpool Street IECC was Shenfield in 1992, which had only opened 10 years earlier. The last boxes to be transferred were at Romford and Gidea Park in 1998; these were the oldest of those being transferred, having been opened under the GER/LNER 1924 resignalling scheme.

The construction of (Chelmsford's second station) started in 2023 and opened in October 2025. It was the first station on the railway line for over 100 years.

Accidents and incidents A number of fatal accidents have occurred on the line throughout its history:

1840: ; four killedAllen, Cecil J.; 'The Great Eastern Railway' 1955 1872: ; one killed and 16 injured in a derailment