View source for Hammersmith & City line

{{short description|London Underground line}}
{{Use dmy dates|date=March 2014}}
{{Infobox rail line
| name        = Hammersmith & City line
| logo        = London flag boxes - Underground Hammersmith & City line.svg
| logo_width  = 250px
| logo_alt    = 
| image       = S7 Stock at West Ham, July 2013.jpg
| image_width = 250px
| image_alt   = 
| caption     = A Hammersmith & City line train at [[West Ham station|West Ham]], bound for  [[Hammersmith tube station (Circle and Hammersmith & City lines)|Hammersmith]]
| type        = [[Rapid transit]]
| system      = [[London Underground]]
| start       = Barking
| mapcolour     = Pink
| mapcolourlink = Tube map
| end         = Hammersmith
| stations    = 29
| ridership2  = 141.627 million (2019){{efn|combined figures for Circle and Hammersmith & City lines}}<ref>{{cite web |title=London Assembly Questions to the Mayor |url=https://www.london.gov.uk/who-we-are/what-london-assembly-does/questions-mayor/find-an-answer/tube-usage-1|publisher=London Assembly |year=2022 |access-date=29 February 2024}}</ref> passenger journeys
| open        = {{start date and age|1863|01|10|df=y}}{{efn|Renamed to Hammersmith & City line in {{start date and age|30 July 1990}}.}}
| lastextension = 1936
| character   = Sub-surface
| depot       = [[Hammersmith Depot|Hammersmith]]
| stock       = [[London Underground S7 and S8 Stock|S7 Stock]]
| linelength_km  = 25.5 | linelength_footnotes = <ref name="linefacts">{{cite web |url= http://www.tfl.gov.uk/corporate/modesoftransport/londonunderground/keyfacts/13171.aspx |title= Hammersmith & City line: Key Facts |publisher= Transport for London |access-date=28 November 2012 |url-status=dead |archive-url=https://web.archive.org/web/20131105170704/https://tfl.gov.uk/corporate/modesoftransport/londonunderground/keyfacts/13171.aspx |archive-date=5 November 2013}}</ref>
| tracklength_km = 
| gauge ={{Track gauge|sg|allk=on}}
| website     = {{Official URL}}
| map_name    = [[Transport for London]] {{nowrap|rail lines}}
| map         = {{London rail lines}}
| map_state   = collapsed
}}
The '''Hammersmith & City line''' is a [[London Underground]] line that runs between [[Hammersmith tube station (Circle and Hammersmith & City lines)|Hammersmith]] in west London and {{stn|Barking}} in east London. Coloured pink on the [[Tube map]], it serves 29 stations over {{convert|25.5|km|mi|order=flip}}. Between {{stn|Farringdon}} and {{lus|Aldgate East}} it skirts the [[City of London]], the capital's financial heart, hence the line's name. Its tunnels are just below the surface and are a similar size to those on British main lines. Most of the track and all stations are shared with the [[Circle line (London Underground)|Circle]], [[District line|District]] or [[Metropolitan line|Metropolitan]] lines. Over 141&nbsp;million passenger journeys are made each year on the Hammersmith & City line.

In 1863, the [[Metropolitan Railway]] began the world's first underground railway service between {{stn|Paddington}} and Farringdon with wooden carriages hauled by steam locomotives. The following year, a railway west from Paddington to Hammersmith was opened and this soon became operated and owned jointly by the Metropolitan and [[Great Western Railway]] companies. The line was then extended to the east, in stages, reaching the [[East London Railway]] in 1884. The line was electrified in 1906, and, in 1936, after the Metropolitan Railway had been absorbed by the [[London Passenger Transport Board]], some Hammersmith & City line trains were extended over the former [[District Railway]] line to Barking. The Hammersmith & City route was shown on the Tube map as part of the Metropolitan line until 30 July 1990, when it was redesignated as a separate line.

Starting in 2015, the signalling system was upgraded as part of a programme to increase peak-hour capacity on the line. The six-car [[London Underground C69 and C77 Stock|C Stock]] trains were replaced from 2012 to 2014 by new seven-car [[London Underground S7 and S8 Stock|S Stock]] trains.

The line runs parallel to the [[Great Western Main Line]] between Paddington and {{lus|Westbourne Park}}, and parallel to the [[London, Tilbury and Southend line]] between {{lus|Bromley-by-Bow}} and Barking.

==History==

===Metropolitan Railway===
{{main|Metropolitan Railway}}
{{Infobox UK legislation
| short_title           = Hammersmith and City Railway Act 1861
| type                  = Act
| parliament            = Parliament of the United Kingdom
| long_title            = An Act for making a Railway from the Great Western Railway to Hammersmith, to be called "The Hammersmith and City Railway," and for other Purposes.
| year                  = 1861
| citation              = [[24 & 25 Vict.]] c. clxiv
| introduced_commons    = 
| introduced_lords      = 
| territorial_extent    = 
| royal_assent          = 22 July 1861
| commencement          = 
| expiry_date           = 
| repeal_date           = 
| amends                = 
| replaces              = 
| amendments            = 
| repealing_legislation = 
| related_legislation   = 
| status                = 
| legislation_history   = 
| theyworkforyou        = 
| millbankhansard       = 
| original_text         = 
| revised_text          = 
| use_new_UK-LEG        = 
| UK-LEG_title          = 
| collapsed             = yes
}}
{{Hammersmith & City line RDT}}
The first line built by the Metropolitan Railway (Met) was from Paddington to near [[Smithfield, London|Smithfield]], near London's financial heart in [[City of London|the City]]; with gas-lit wooden carriages hauled by steam locomotives. Authorised by the '''{{visible anchor|Hammersmith and City Railway Act 1861}}''' ([[24 & 25 Vict.]] c. clxiv), and opened on 10 January 1863, it was the world's first underground railway. The line was built mostly under the [[New Road (London)|New Road]] using the "[[cut-and-cover]]" method between Paddington and King's Cross and then in tunnel and cuttings beside [[Farringdon Road]].{{sfn|Green|1987|pp=3–5}}<ref>{{cite book|last1=Edwards|first1=Dennis|last2=Pigram|first2=Ron|year=1988|publisher=[[Bloomsbury Publishing|Bloomsbury]]|title=The Golden Years of the Metropolitan Railway and the Metro-land Dream|isbn=1-870630-11-4|page=32}}</ref> Supported by the Met and the [[Great Western Railway]] (GWR), the Hammersmith and City Railway (H&CR) was built from the GWR's main line a mile west of Paddington station to the developing suburbs of [[Shepherd's Bush]] and [[Hammersmith]].{{sfn|Wolmar|2004|pp=66–67}}{{sfn|Jackson|1986|p=38}} Built on viaduct largely across open fields,{{sfn|Jackson|1986|pp=39–40}} the line opened on 13 June 1864 with a GWR service from Farringdon{{sfn|Jackson|1986|pp=38–39}} to [[Hammersmith tube station (Circle and Hammersmith & City lines)|Hammersmith]],{{sfn|Rose|2007}} services to Addison Road (now [[Kensington (Olympia) station|Kensington (Olympia)]]) on the [[West London Railway]] via a link at Latimer Road starting a few weeks later.{{sfn|Jackson|1986|pp=38–39}} From 1865, the Met ran trains to Hammersmith and the GWR trains to Addison Road.{{efn|In August 1872, the Addison Road service became the [[Middle Circle]] when extended over the [[District Railway]] to Earl's Court and onto [[Mansion House tube station|Mansion House]]. From 1 July 1900 the service was cut back to run from Earl's Court to Aldgate before being withdrawn in January 1905.{{sfn|Bruce|1983|p=11}}}} In 1867, the line became jointly owned by the two companies. In 1871, two additional tracks parallel to the GWR between Westbourne Park and Paddington were brought into use for the H&CR, and in 1878 the flat crossing at Westbourne Park was replaced by a [[Flying junction|dive-under]].{{sfn|Jackson|1986|pp=39–40}} A year earlier some services had been extended via [[London & South Western Railway]]'s [[Hammersmith (Grove Road) railway station]] and their line to Richmond.{{sfn|Green|1987|p=11}}{{sfn|Rose|2007}}

The railway was extended east of Farringdon and a terminus opened at [[Aldgate tube station|Aldgate]] on 18 November 1876.{{sfn|Jackson|1986|pp=69–71}} The Met wished to access the [[South Eastern Railway (UK)|South Eastern Railway]] via the [[East London Railway]] (ELR) and jointly with the [[District Railway]] built lines from their [[Mansion House tube station|Mansion House station]] to the Met's Aldgate station and east from Aldgate to reach the ELR at [[Whitechapel tube station|Whitechapel]]. In October 1884, the Met extended some Hammersmith services over the ELR to New Cross.{{sfn|Jackson|1986|p=109}}{{sfn|Rose|2007}}

In 1902, the [[Whitechapel & Bow Railway]] was opened, linking the District Railway at Whitechapel to the [[London, Tilbury and Southend Railway]] (LT&SR) at an above-ground junction at [[Bow, London|Bow]], to the west of [[Bromley-by-Bow tube station|Bromley-by-Bow station]], and some District services were extended from Whitechapel to [[East Ham station|East Ham]].{{sfn|Horne|2006|pp=28–29}} In 1906 the line was electrfied and this necessitated a dedicated power station located at Park Royal along with three substation. The lines from Latimer Road to Addison Road were also included.<ref>{{Cite book |url=http://archive.org/details/the-electrician-vol-59 |title=The Electrician Vol 59}}</ref> At the same time services to Richmond were withdrawn and the western termini became Hammersmith and Kensington (Addison Road), and to the east services were diverted from the ELR to Whitechapel,{{sfn|Jackson|1986|p=185}} until the ELR was electrified in 1914 and services ran from Hammersmith to New Cross (SER) and New Cross (LB&SCR).{{sfn|Jackson|1986|pp=224, 349}} The 6-car electric multiple units were jointly owned by the Met and GWR until 1923 when the GWR sold theirs to the Met.{{sfn|Jackson|1986|p=237}}

===London Transport===
{{main|Metropolitan line (1933–88)}}
On 1 July 1933, the Metropolitan Railway was amalgamated with other Underground railways, tramway companies and bus operators to form the [[London Passenger Transport Board]]. To relieve congestion on the [[District line]] east of {{stl|LUL|Whitechapel}} from 1936 some Hammersmith & City line trains were diverted from the East London line to Barking.{{sfn|Rose|2007}} Through trains to New Cross and New Cross Gate were withdrawn in November 1939,{{sfn|Rose|2007}} the Hammersmith & City line trains terminating at Whitechapel while the longer 8-car [[Uxbridge tube station|Uxbridge]] line trains ran to Barking. However, this caused operational problems and from 1941 Barking was again served by trains from Hammersmith.{{sfn|Horne|2003|p=65}}

From 1937, new steel [[London Underground O Stock|O stock]] trains, with doors remotely operated by the guard, replaced the wooden-bodied trains dating from 1906. It had been intended to operate the new trains with four or six cars,{{sfn|Horne|2003|p=65}} but after initial problems with the traction current only six-car formations were used.{{sfn|Bruce|1983|p=93}} Services to Kensington (Olympia) via the curve at Latimer Road were suspended for the duration of World War II after bomb damage to the West London line in 1940.{{sfn|Horne|2006|p=73}} When the similar trains running on the Circle line were lengthened to six cars in 1959 and 1960, the stock of the two lines was integrated with maintenance at Hammersmith depot.{{sfn|Bruce|1983|p=95}} Aluminium [[London Underground C69 and C77 Stock|C Stock]] trains, with public address systems and originally unpainted, replaced these trains from 1970.{{sfn|Bruce|1983|p=114}} [[Driver-only operation|One person operation]] was proposed in 1972, but due to conflict with the trade unions was not introduced until 1984.<ref>{{cite book|last1=Croome|first1=Desmond F.|last2=Jackson|first2=Alan Arthur|title=Rails Through the Clay: A History of London's Tube Railways|year=1993|publisher=Capital Transport|page=468|isbn=978-1-85414-151-4}}</ref>

===A separate identity===
The Hammersmith & City line was shown on the [[tube map]] as part of the [[Metropolitan line]] until 1990, when it became separated, and the Metropolitan line became the route from Aldgate to Baker Street and northwards through "[[Metro-land]]" to Uxbridge, [[Watford tube station|Watford]] and [[Amersham station|Amersham]].{{sfn|Rose|2007}}<ref name="T90">{{cite web|title=London Underground map |date=July 1990|url=https://www.clarksbury.com/cdl/maps/tube90.jpg|work=The London Tube map archive|access-date=21 November 2012}}</ref> In June 1990, [[London Regional Transport|London Transport]] was considering potential colours and names for the separately identified line. Expected to be called "Hammersmith and City" and coloured salmon pink on the [[Tube map]], the final decision was to be made in July.<ref>{{cite news |title=Colourful train of thought |work=Hammersmith and Shepherds Bush Gazette |date=29 June 1990 |page=1}}</ref> The new identity, launched on 31 July 1990, was marked by the release of several hundred pink balloons.<ref>{{cite news |title=Facelift for Underground |work=Hammersmith and Shepherds Bush Gazette |date=3 August 1990 |page=3}}</ref><ref>{{cite magazine |title=Salmon pink for new LUL line |magazine=The Railway Magazine |date=October 1990 |volume=136 |issue=1074 |page=646}}</ref>

In 2003, the infrastructure of the Hammersmith & City line was partly privatised in a [[public–private partnership]], managed by the [[Metronet (British infrastructure company)|Metronet]] consortium. Metronet went into [[Administration (law)|administration]] in 2007 and the local government body [[Transport for London]] took over responsibilities.<ref>{{cite web|url=http://www.tfl.gov.uk/assets/downloads/london-underground-ppp-performance-report-2009-2010.pdf|title=PPP Performance Report|date=2009–2010|publisher=Transport for London|access-date=7 March 2012|pages=7–8|archive-date=26 April 2012|archive-url=https://web.archive.org/web/20120426034334/http://www.tfl.gov.uk/assets/downloads/london-underground-ppp-performance-report-2009-2010.pdf|url-status=dead}}</ref> The reconstruction of Whitechapel station as part of the [[Crossrail]] project required the reversing platforms to be taken out of use and since December 2009 all services have been extended to Plaistow or Barking.<ref>{{cite web|url=http://www.tfl.gov.uk/assets/downloads/Item05-Review-of-the-New-SSR-Service-Pattern.pdf |archive-url=https://ghostarchive.org/archive/20221010/http://www.tfl.gov.uk/assets/downloads/Item05-Review-of-the-New-SSR-Service-Pattern.pdf |archive-date=2022-10-10 |url-status=live|title=Review of the new SSR service pattern introduced in December 2009|date=8 February 2011|access-date=31 December 2012|publisher=[[Transport for London]]|pages=2, 8}}</ref>

Beginning in 2012, following the complete replacement of the Metropolitan line's A Stock with S8 Stock, the C Stock trains of the Circle and Hammersmith & City lines were replaced by the S7 Stock. The Hammersmith & City line received the S7 Stock first, with the first train entering service on 6 July 2012, running a shuttle service between Hammersmith and Moorgate<ref>{{cite web |url= https://www.londonreconnections.com/2012/in-pictures-the-s7-in-passenger-service/ |title=In Pictures: The S7 Stock In Passenger Service |author1=Bull, John |author2=Moore, George |date=9 July 2012 |work=London Reconnections |access-date=16 July 2012}}</ref> before operating between Hammersmith and Barking on 9 December 2012.<ref>{{cite news |title=First S Stock train runs on Hammersmith & City line |author=Johnson, Marc |url=http://www.rail.co/2012/12/13/first-s-stock-train-in-service-on-hammersmith-city-line/ |newspaper=Rail.co |date=13 December 2012 |access-date=30 December 2012 |archive-url=https://archive.today/20130116003531/http://www.rail.co/2012/12/13/first-s-stock-train-in-service-on-hammersmith-city-line/ |archive-date=16 January 2013 |url-status=dead }}</ref><ref>{{cite web |url=http://www.tfl.gov.uk/assets/downloads/corporate/Board-20131211-Part-1-Item05-Commissioners-Report-December-2013.pdf |title=Commissioner's Report |publisher=Transport for London |date=December 2013 |access-date=21 December 2013 |author=Hendy, Peter |page=5 |archive-date=24 December 2013 |archive-url=https://web.archive.org/web/20131224110412/http://www.tfl.gov.uk/assets/downloads/corporate/Board-20131211-Part-1-Item05-Commissioners-Report-December-2013.pdf |url-status=dead }}</ref> By March 2014, all services were provided by S7 Stock trains.<ref name="March Report">{{cite web |url= http://www.tfl.gov.uk/cdn/static/cms/documents/board-20140326-part-1-item05-commissioners-report.pdf |archive-url=https://ghostarchive.org/archive/20221010/http://www.tfl.gov.uk/cdn/static/cms/documents/board-20140326-part-1-item05-commissioners-report.pdf |archive-date=2022-10-10 |url-status=live |date=26 March 2014 |title=Commissioner's Report |publisher=Transport for London |pages=3–4 |access-date=2 April 2014}}</ref>

==Route==
{{wide image|Hammersmith & City Line & London map.svg|850px|The Hammersmith & City line and the [[London boroughs]] served|center}}
The line is {{convert|25.5|km|mi|order=flip}} long with 29 stations, all of which are shared with other lines.<ref name="linefacts"/>

Almost all of its track is shared with the other London Underground sub-surface lines: from Hammersmith to Baker Street with the Circle line; from Baker Street to Liverpool Street with the Circle and Metropolitan lines; and from [[Aldgate East tube station|Aldgate East station]] to Barking with the District line. A short section between Paddington and Edgware Road is also shared with the District line, while a short section between Liverpool Street and Aldgate East is not shared with any other line.<ref name="map" />

The line is electrified with a four-rail DC system: a central conductor rail is energised at {{Val|-210|u=V}} and a rail outside the running rails at {{Val|+420|u=V}}, giving a potential difference of {{Val|630|u=V}}.<ref name="Martin2012">{{cite book |author= Martin, Andrew |title=Underground, Overground: A Passenger's History of the Tube |url= https://books.google.com/books?id=vh3n5WD_YqsC&pg=PT137 |access-date=7 December 2012 |date=26 April 2012 |publisher=Profile Books |isbn=978-1-84765-807-4 |pages=137–138}}</ref> 

Much of the {{convert|2|mi|35|chain|adj=on}} double-track railway from the [[Hammersmith tube station (Circle and Hammersmith & City lines)|Hammersmith terminus]] to [[Westbourne Park tube station|Westbourne Park station]] is on a {{convert|20|ft|adj=on}} high brick viaduct.{{sfn|Jackson|1986|p=38}} After Westbourne Park the line passes beneath the [[Great Western Main Line]] re-surfacing at [[Royal Oak tube station|Royal Oak station]] and running alongside the main lines to [[Paddington tube station (Circle and Hammersmith & City lines)|Paddington station]].<ref name="map">{{cite web|url=https://cartometro.com/cartes/metro-london/|title=Detailed London Transport Map|access-date=23 November 2012|work=cartometro.com}}</ref> The line enters a cutting just west of Paddington, with a cut-and-cover tunnel at the far eastern end of the platforms. It meets the Circle and District lines from Bayswater at Praed Street Junction before passing through Edgware Road station in a cutting. After [[King's Cross St Pancras tube station|King's Cross St Pancras]] the line is partly in cutting but mostly in the [[Clerkenwell Tunnel]]s, just after which it passes over the Ray Street Gridiron that carries the route over the [[City Widened Lines]] used for [[Thameslink (route)|Thameslink]] services.<ref name="map" />{{sfn|Jackson|1986|p=48}}{{sfn|Day|1963|pp=5, 8, 16–17}} There are bay platforms at [[Moorgate station|Moorgate]]. Just before Aldgate the line diverges from the Circle and Metropolitan lines, continuing eastwards to join the District line west of Aldgate East.<ref name="map" /> The line passes over the [[Windrush line]] (on the [[East London line]] railway) at Whitechapel station continuing on the {{convert|2|mi|adj=on}} former Whitechapel & Bow Railway to [[Bow Road tube station|Bow Road]] where it surfaces, and then to Bromley-by-Bow, where it runs alongside the London, Tilbury and Southend line from [[Fenchurch Street station|Fenchurch Street]]. At the next station, [[West Ham tube station|West Ham]], there is a transfer with the [[Jubilee line]], the [[Docklands Light Railway]] and [[London, Tilbury and Southend line]]. There is a bay platform at the next station, [[Plaistow tube station|Plaistow]], and the line terminates after two more stations at [[Barking station|Barking]].<ref name="map" />

==Services==
{{As of|December 2012}}, off-peak there are six trains per hour, calling at all stations,<ref name="TBL">{{cite web |url= http://journeyplanner.tfl.gov.uk/user/XSLT_SEL_STT_REQUEST?sessionID=0&language=en&mode=line&linePreSel=tfl:25:*&linePreSel=tfl:63:* |title= Hammersmith to Barking Hammersmith & City line timetable |publisher=Transport for London |access-date=9 December 2012}} In the Tube timetable - Tube station box select "Hammersmith (H&C Line)" and press ''Get Timetable''. Select Hammersmith & City line Barking timetable and then view timetable.</ref> and requiring 15 trains for the peak-hour service.<ref name="linefacts"/> Together with the Circle line, over 114&nbsp;million passenger journeys are made each year.<ref name="Almanac">{{cite web|url= http://www.tfl.gov.uk/corporate/modesoftransport/londonunderground/1592.aspx|title= Performance: LU Performance Data Almanac|publisher= [[Transport for London]]|year= 2011–2012|access-date= 17 January 2013|archive-date= 14 February 2013|archive-url= https://web.archive.org/web/20130214030201/http://www.tfl.gov.uk/corporate/modesoftransport/londonunderground/1592.aspx|url-status= dead}}</ref> The journey from Hammersmith to Barking takes one hour during off-peak times. The central section from Paddington to Aldgate East is in [[London fare zones|Fare Zone 1]]; to the west to Hammersmith and east to Bromley-by-Bow is in Zones 2; East Ham is in both Zones 3 and 4, whilst Barking is in Zone 4 alone.<ref>{{cite web |url= https://www.tfl.gov.uk/assets/downloads/standard-tube-map.pdf |title= Standard Tube Map |publisher= Transport for London |access-date= 8 December 2012 |archive-date= 26 June 2008 |archive-url= https://web.archive.org/web/20080626161335/http://www.tfl.gov.uk/assets/downloads/Standard-Tube-map.pdf |url-status= dead }}</ref>

==Rolling stock==

{{main|London Underground S7 and S8 Stock}}
[[File:S7 Stock leaving West Ham, July 2013.jpg|thumb|S7 Stock leaving West Ham station|alt=View of the rear of an electric multiple unit crossing a bridge, track in foreground]]
Services are provided by [[London Underground S7 and S8 Stock|S7 Stock trains]], part of Bombardier's [[Bombardier Movia|Movia]] family, with air-conditioning as the sub-surface tunnels (unlike those on the deep-level tube lines) are able to disperse the exhausted hot air.<ref name=Bombardier>{{cite web |title=Metro&nbsp;— London, United Kingdom |publisher=Bombardier |url=http://www.bombardier.com/en/transportation/products-services/rail-vehicles/metros/london--united-kingdom?docID=0901260d8000d19e |access-date=27 January 2011}}</ref> These trains have [[regenerative brake]]s, returning around 20 per cent of their energy to the network.<ref>{{cite web |url=http://www.tfl.gov.uk/assets/downloads/transforming-the-tube-brochure.pdf |title=Transforming the Tube |date=July 2008 |publisher=Transport for London |access-date=28 May 2009 |url-status=dead |archive-url=https://web.archive.org/web/20131015111828/http://www.tfl.gov.uk/assets/downloads/transforming-the-tube-brochure.pdf |archive-date=15 October 2013 |page=9}}</ref> With a top speed of {{convert|62|mph|abbr=on}},<ref name=Bombardier /> a 7-car S Stock train has a capacity of 865 passengers, compared to 739 for the six-car C Stock train it replaced.<ref name="TfL-Cs">{{cite web |url= http://www.tfl.gov.uk/corporate/modesoftransport/londonunderground/rollingstock/1616.aspx |title= Rolling Stock: C Stock |access-date= 25 November 2012 |publisher= Transport for London |archive-date= 5 November 2012 |archive-url= https://web.archive.org/web/20121105134748/http://www.tfl.gov.uk/corporate/modesoftransport/londonunderground/rollingstock/1616.aspx |url-status= dead }}</ref><ref name="TfL-SStock"/> With a length of {{convert|117|m|order=flip}}, S Stock trains are {{convert|24|m|order=flip}} longer than {{convert|93|m|order=flip|adj=on}} long [[London Underground C69 and C77 Stock|C Stock trains]] and station platforms have been lengthened.<ref name="MR201012p46ff">{{cite news |title='S' stock making its mark |work=Modern Railways |location =London |page=46 |date=December 2010}}</ref> Traction voltage was increased in 2017, from the present nominal 630 V to 750 V to give better performance and allow the trains to return more energy to the network through their regenerative brakes.<ref name="TfL-SStock">{{cite web |url= http://www.tfl.gov.uk/corporate/modesoftransport/londonunderground/rollingstock/21815.aspx |title= Rolling Stock: S stock |publisher= Transport for London |access-date= 10 January 2012<!--| note=The table erroneously says "Length per car", instead of "Length per train"--> |archive-date= 29 December 2013 |archive-url= https://web.archive.org/web/20131229052317/http://www.tfl.gov.uk/corporate/modesoftransport/londonunderground/rollingstock/21815.aspx |url-status= dead }}</ref>

==Depot==
The line's depot is at Hammersmith,{{efn|Position: {{Coord|51|29|52|N|000|13|31|W|region:GB_type:railwaystation|name=30 - Hammersmith Depot}}}} close to Hammersmith station, built by the Great Western Railway to be operated by the Metropolitan Railway when the joint railway was electrified in the early 20th century.{{sfn|Jackson|1986|p=185}} Sidings at Barking and near High Street Kensington (Triangle Sidings) stable trains overnight.<ref name="linefacts"/> Sidings at Farringdon were used during the C stock era; due to the greater length of the new S stock trains, these are no longer in use.

== Four Lines Modernisation ==
{{See also|Four Lines Modernisation}}

It was planned that a new signalling system would be used first on the sub-surface lines from the end of 2016,<ref name="MR3">{{cite magazine |last=Abbott|first=James|date=January 2013|title=Sub-surface renewal|pages=38–41 |magazine=Modern Railways}}</ref> but signalling contractor Bombardier was released from its contract by agreement in December 2013 amid heavy criticism of the procurement process<ref>{{Cite magazine |date=2014-01-03|title=London Underground and Bombardier abandon Tube signalling contract|url=https://www.railjournal.com/financial/london-underground-and-bombardier-abandon-tube-signalling-contract/|access-date=2020-06-02 |magazine=International Railway Journal }}</ref> and London Underground subsequently awarded the contract for the project to [[Thales Group|Thales]] in August 2015.<ref>{{Cite magazine |date=2017-10-13|title=London Underground resignalling reaches milestone|url=https://www.railjournal.com/signalling/london-underground-resignalling-reaches-milestone/|access-date=2020-06-02 |magazine=International Railway Journal }}</ref>

With the introduction of S7 Stock, the track, electrical supply, and signalling systems are being upgraded in a programme planned to increase peak-hour capacity on the line by 27 per cent by the end of 2023.<ref name="MR3" /><ref name="TfL-upgrade2">{{cite web|date=February 2011|title=Our Upgrade Plan|url=http://www.tfl.gov.uk/assets/downloads/corporate/our-upgrade-plan-london-underground-february-2011.pdf|url-status=dead|archive-url=https://web.archive.org/web/20120817225410/http://www.tfl.gov.uk/assets/downloads/corporate/our-upgrade-plan-london-underground-february-2011.pdf|archive-date=17 August 2012|access-date=7 December 2012|publisher=Transport for London}}</ref><ref>{{Cite web |title=Four Lines Modernisation|url=https://www.tfl.gov.uk/travel-information/improvements-and-projects/four-lines-modernisation|access-date=2020-06-02|website=Transport for London|language=en-GB}}</ref> A single control room for the sub-surface railway opened at Hammersmith on 6 May 2018, and [[Automatic train operation|Communications Based Control (CBTC)]] provided by Thales will progressively replace 'fixed block' signalling equipment dating back the 1940s.<ref name="MR3" /><ref name="MR22">{{cite magazine |last=Stewart|first=Rob|date=January 2013|title=Cityflo 650 to control the SSR|pages=42–43 |magazine=Modern Railways }}</ref>

The rollout of CBTC has been split into sections, each known as a Signal Migration Area (SMA), and are located on the line as follows:<ref>{{Cite magazine |title=4LM SIGNALLING UPDATE |url=https://www.lurs.org.uk/01_Oct_2020_NEWS_AND_NOTES.pdf |date=October 2020 |magazine=Underground News |publisher=London Underground Railway Society |volume=706|pages=572}}</ref>

{| class="wikitable"
|+ Hammersmith & City line Signal Migration Areas
!{{Abbr|SMA|Signal Migration Area}}{{efn-lr|SMAs 4–5 and 7–14 concern parts of the Circle, District, and Metropolitan lines.}}
!From
!To
!Status
!data-sort-type="isoDate"|Date
|-
|0.5
|Hammersmith
|Latimer Road
|completed
|data-sort-value="2019-03" | March 2019
|-
|1
|Latimer Road
|Paddington
|completed
|data-sort-value="2019-09" | September 2019
|-
|2
|Paddington
|Euston Square
|completed
|data-sort-value="2019-09" | September 2019
|-
|3
|Euston Square
|Stepney Green
|completed
|data-sort-value="2020-07" | July 2020
|-
|6
|Stepney Green
|Becontree
|completed
|data-sort-value="2023-01" | January 2023
|}

{{notelist-lr}}

==List of stations==
{|class="wikitable sortable"
! Station !! class=unsortable|Image !! Opened{{sfn|Rose|2007}} !! class=unsortable|Additional information !! Location
|-
|[[Hammersmith tube station (Circle and Hammersmith & City lines)|Hammersmith]] {{access icon}} || [[File:Hammersmith (H & C line) station building.JPG|100px|alt=A brown-bricked building with a rectangular, blue sign reading "HAMMERSMITH STATION" in white letters all under a grey sky]] || 13 June 1864 ||Connects with [[District line|District]] and [[Piccadilly line|Piccadilly]] lines. Moved to current position 1 December 1868.{{sfn|Rose|2007}} ||  {{Coord|51|29|39|N|000|13|30|W|region:GB_type:railwaystation|name=01 - Hammersmith tube station}}
|-
|[[Goldhawk Road tube station|Goldhawk Road]] || [[File:Goldhawk Road stn east entrance.JPG|100px|alt=An entrance under a railway brick viaduct with a blue sign reading "GOLDHAWK ROAD STATION" in white letters and two women walking in front all under a grey sky]] || 1 April 1914 || || {{Coord|51|30|07|N|000|13|37|W|region:GB_type:railwaystation|name=02 - Goldhawk Road tube station}}
|-
|[[Shepherd's Bush Market tube station|Shepherd's Bush Market]] || [[File:Shepherd's Bush Market stn east entrance.JPG|100px|alt=A railway on a brick viaduct crosses a road on a steel bridge, with an entrance below a blue sign reading "SHEPHERD'S BUSH MARKET STATION" in white letters]] || 13 June 1864 || Moved to current position 1 April 1914.{{sfn|Rose|2007}} Renamed from "Shepherd's Bush" in 2008.<ref>{{cite press release |url=http://www.tfl.gov.uk/static/corporate/media/newscentre/archive/9969.html |title=Modernisation complete as Shepherd's Bush Tube station re-opens |publisher=[[Transport for London]] |date=7 October 2008 |access-date=6 February 2013 |archive-date=16 August 2012 |archive-url=https://web.archive.org/web/20120816190728/http://www.tfl.gov.uk/static/corporate/media/newscentre/archive/9969.html |url-status=dead}}</ref> || {{Coord|51|30|21|N|000|13|35|W|region:GB_type:railwaystation|name=03 - Shepherd's Bush Market tube station}}
|-
|[[Wood Lane tube station|Wood Lane]] {{access icon}} || [[File:Wood Lane tube station 8.jpg|100px|alt=A silver metal and glass building with a blue sign with "WOOD LANE STATION" in white letters]] || 12 October 2008  || <ref>{{cite press release |url=https://www.tfl.gov.uk/corporate/media/newscentre/archive/10069.aspx |title=New Wood Lane Underground station opens |date=14 October 2008 |publisher=Transport for London |access-date=8 December 2012}}</ref> ||{{Coord|51|30|35|N|000|13|27|W|region:GB_type:railwaystation|name=04 - Wood Lane tube station}}
|-
|[[Latimer Road tube station|Latimer Road]] || [[File:Latimer Road tube stn entrance close-up 2012.JPG|100px|alt=A railway on a brick viaduct crosses a road, an entrance in the brickwork below a sign reading "LATIMER ROAD STATION"]] || 16 December 1868 || Closed between 17 January and 1 August 2011 for refurbishment and extension works<ref name="Latimer Road station to close for engineering works">{{cite press release |url=https://www.tfl.gov.uk/corporate/media/newscentre/archive/17944.aspx |title=Latimer Road station to close for three months for engineering works |date=14 January 2011 |publisher=Transport for London |access-date=7 February 2013}}</ref> ||{{Coord|51|30|50|N|000|13|02|W|region:GB_type:railwaystation|name=05 - Latimer Road tube station}}
|-
|[[Ladbroke Grove tube station|Ladbroke Grove]] || [[File:Ladbroke Grove station.jpg|100px|alt=A brick building with an entrance below a sign reading "LADBROKE GROVE STATION". Three people are in a group outside the entrance]] || 13 June 1864 || Opened as Notting Hill, renamed Notting Hill & Ladbroke Grove in 1880, Ladbroke Grove (North Kensington) in 1919 and Ladbroke Grove in 1938.{{sfn|Rose|2007}}||{{Coord|51|31|02|N|000|12|38|W|region:GB_type:railwaystation|name=06 - Ladbroke Grove tube station}}
|-
|[[Westbourne Park tube station|Westbourne Park]] || [[File:Westbourne Park tube station 1.jpg|100px|alt=A dirty, white-bricked building with a rectangular, dark blue sign reading "WESTBOURNE PARK STATION" in white letters all under a blue sky]] || 1 February 1866 ||Moved to current position 1 November 1871,{{sfn|Rose|2007}} and a Great Western Main Line station until 1992.{{efn|{{harvtxt|Leboff|1994|p=152}} adds that the station opened as 'Westbourne Park & Kensal Green' and was served from the outset by the GWR, whereas {{harvtxt|Butt|1995|p=244}} gives the GWR serving from 1871.}}{{sfn|Butt|1995|p=244}}{{sfn|Leboff|1994|p=152}}||{{Coord|51|31|16|N|000|12|04|W|region:GB_type:railwaystation|name=07 - Westbourne Park tube station}}
|-
|[[Royal Oak tube station|Royal Oak]] || [[File:Royal Oak tube station Entrance.jpg|100px|alt=A brown-bricked building with a rectangular, dark blue sign reading "ROYAL OAK STATION" in white letters all under a light blue sky]] || 30 October 1871 || Also a Great Western Main Line station until 1934.{{sfn|Leboff|1994|p=116}}||{{Coord|51|31|09|N|000|11|17|W|region:GB_type:railwaystation|name=08 - Royal Oak tube station}}
|-
|[[Paddington tube station (Circle and Hammersmith & City lines)|Paddington]] {{access icon}} {{rail-interchange|gb|rail}} {{rail-interchange|london|elizabeth}} || [[File:Paddington tube stn Hammersmith & City westbound look east.JPG|100px|alt=A platform with several people waiting for a train. A white square sign has a London Underground roundel with "PADDINGTON" in the centre. To the right there is a track with fourth track electrification and on an adjacent track a blue multiple unit train with red doors waits.]] || 10 January 1863 ||Opened as Paddington (Bishop's Road), renamed in 1948.{{sfn|Rose|2007}} <br/>Connects with [[Bakerloo line|Bakerloo]], [[Circle line (London Underground)|Circle]] and District lines, [[Elizabeth line]] and [[London Paddington station|Paddington]] main-line station.||{{Coord|51|31|07|N|000|10|46|W|region:GB_type:railwaystation|name=09 - Paddington station (H&C platforms)}}
|-
|[[Edgware Road tube station (Circle, District and Hammersmith & City lines)|Edgware Road]] || [[File:EdgwareRdHammersmith.jpg|100px|alt=A tan-coloured building with brown-framed windows and a sign reading "METROPOLITAN EDGWARE ROAD STATION RAILWAY" in brown letters]] || 10 January 1863 || Connects with [[Circle line (London Underground)|Circle]] and [[District line|District]] lines.||{{Coord|51|31|12|N|000|10|04|W|region:GB_type:railwaystation|name=10 - Edgware Road tube station}}
|-
|[[Baker Street tube station|Baker Street]] || [[File:BakerStEntrance.JPG|100px|alt=A street filled with people in front of a light grey building that has variously coloured signs protruding from it stating a variety of different things]] || 10 January 1863 || Connects with [[Bakerloo line|Bakerloo]], [[Jubilee line|Jubilee]] and [[Metropolitan line|Metropolitan]] lines. ||{{Coord|51|31|19|N|000|09|25|W|region:GB_type:railwaystation|name=11 - Baker Street tube station}}
|-
|[[Great Portland Street tube station|Great Portland Street]] || [[File:Great Portland St Tube Station.jpg|100px|alt=A beige-bricked building with a blue sign reading "GREAT PORTLAND STREET STATION" in white letters all under a blue sky with white clouds]] || 10 January 1863 || Opened as Portland Road, renamed Great Portland Street in 1917. Named Great Portland Street & Regent's Park 1923–33.{{sfn|Rose|2007}}||{{Coord|51|31|26|N|000|08|38|W|region:GB_type:railwaystation|name=12 - Great Portland Street tube station}}
|-
|[[Euston Square tube station|Euston Square]] || [[File:Euston Square stn south entrance.JPG|100px|alt=A building covered in windows with a blue sign reading "EUSTON SQUARE STATION" in white letters all under a blue sky with white clouds]] || 10 January 1863 || Opened as Gower Street and renamed in 1909.{{sfn|Rose|2007}} Closest Hammersmith & City line station to {{rws|Euston}} main-line station.||{{Coord|51|31|33|N|000|08|09|W|region:GB_type:railwaystation|name=13 - Euston Square tube station}}
|-
|[[King's Cross St Pancras tube station|King's Cross St Pancras]] {{access icon}} {{rail-interchange|gb|rail|}} {{rint|London|thameslink}} {{rail-interchange|eurostar|}} || [[File:King's Cross St Pancras tube stn Euston Rd NE entrance.JPG|100px|alt=Beneath a blue sign reading "KING'S CROSS ST. PANCRAS UNDERGROUND STATION several people exit from an entrance leading to steps down. To the right there are silver doors under a sign reading "Lift". The sky is overcast, above the entrance is a dark blue temporary building]] || 10 January 1863 || Opened as King's Cross, renamed King's Cross & St. Pancras in 1925 and King's Cross St. Pancras in 1933. Moved to current position in 1941.{{sfn|Rose|2007}}<br/>Connects with [[Northern line|Northern]], Piccadilly and [[Victoria line|Victoria]] lines [[St Pancras railway station|St Pancras]] and [[London King's Cross railway station|King's Cross]] main-line stations and international rail services.||{{Coord|51|31|49|N|000|07|27|W|region:GB_type:railwaystation|name=14 - King's Cross St Pancras tube station}}
|-
|[[Farringdon station|Farringdon]] {{access icon}} {{rail-interchange|gb|rail}} {{rail-interchange|london|elizabeth}} {{rint|London|thameslink}} || [[File:Farringdon station building.JPG|100px|alt=A street view of a pale stone two storey building. Across the top of the building signs read "FARRINGDON & HIGH HOLBORN STATION" and "METROPOLITAN RAILWAY" in gold colour lettering. At ground level a canopy extends into the street around a blue sign reads "FARRINGDON STATION" with the London Underground roundel and National Rail symbols, and just above an entrance is a gold lettering reading "ENTRANCE". Either side of the entrance are shops, bicycles are in bicycle stands and people are walking on the pavement in front of the building]] || 10 January 1863 || Opened as Farringdon Street, and moved to current position in 1865. Renamed Farringdon & High Holborn in 1922 and Farringdon in 1936.{{sfn|Rose|2007}}<br/>Connects with [[Thameslink (route)|Thameslink]] and Elizabeth line services. ||{{Coord|51|31|12|N|000|06|19|W|region:GB_type:railwaystation|name=15 - Farringdon station}}
|-
|[[Barbican tube station|Barbican]] || [[File:Barbican station entrance.JPG|100px|alt=Across a road with a London taxi and a car is an entrance. This has people standing in it and above is a blue rectangular sign reading "BARBICAN STATION" in white and above this is a bridge linking the building]] || 23 December 1865 || Opened as Aldersgate Street, then Aldersgate in 1910, Aldersgate & Barbican in 1923 and Barbican in 1968.{{sfn|Rose|2007}} ||{{Coord|51|31|13|N|000|05|52|W|region:GB_type:railwaystation|name=16 - Barbican tube station}}
|-
|[[Moorgate station|Moorgate]] {{rail-interchange|gb|rail}} {{rail-interchange|london|elizabeth}} || [[File:Moorgate entrance Mgate.JPG|100px|alt=Across a street and behind black bollards is a brick building of at least two storeys. The ground floor is stone coloured and two people are standing in a dark entrance beneath a blue rectangular sign reading "MOORGATE STATION" in white. Above this, attached to be wall at 90 degrees is a white rectangular sign with the National Rail logo and London Underground roundel. Above this, below three windows, blue lettering reads "MOORGATE STATION"]] || 23 December 1865 || Opened as Moorgate Street, renamed in 1924.{{sfn|Rose|2007}}<br/>Connects with [[Northern line|Northern]] line and the main line. The Elizabeth line is interchangeable via the Northern Line platforms from [[Liverpool Street station]] due to the long platforms. ||{{Coord|51|31|07|N|000|05|19|W|region:GB_type:railwaystation|name=17 - Moorgate station}}
|-
|[[Liverpool Street station|Liverpool Street]] {{rail-interchange|gb|rail}} {{rail-interchange|london|elizabeth}} {{rail-interchange|london|overground}} || [[File:Liverpool Street station entrance Bishopsgate.JPG|100px|alt=The end of a brick building with arched windows and sloping roofs lies between two towers with steeples. In front of this is a white metal and glass structure. People are standing and walking in the street in front.]] || 11 July 1875 || From February to July 1875 trains used platforms in the mainline station.{{sfn|Jackson|1986|p=70}}<br />Connects with [[Central line (London Underground)|Central]], [[Circle line (London Underground)|Circle]] and [[Metropolitan line|Metropolitan]] lines, Elizabeth line and Liverpool Street mainline station.||{{Coord|51|31|04|N|000|04|59|W|region:GB_type:railwaystation|name=18 - Liverpool Street station}}
|-
|[[Aldgate East tube station|Aldgate East]] || [[File:Aldgate East stn southwest entrance.JPG|100px|alt=In the middle of building works a glass doors show banisters leading down beneath a sign reading "ALDGATE EAST STATION", this beneath a canopy supported on four girders.]] || 6 October 1884 ||Connects with [[District line|District]] line. Moved to current position in 1938.{{sfn|Rose|2007}} ||{{Coord|51|30|55|N|000|04|20|W|region:GB_type:railwaystation|name=19 - Aldgate East tube station}}
|-
|[[Whitechapel station|Whitechapel]] {{rail-interchange|london|overground}} {{rail-interchange|london|elizabeth}} || [[File:Whitechapel tube station entrance.jpg|100px|alt=Two entrances on the ground floor of what looks like a terraced house between a shop with green sign reading "Fresh" and a building with a sign reading "Lecture Hall" above a door]] || 6 October 1884 || Connects with [[Windrush line]] and Elizabeth line services. Opened as Whitechapel (Mile End), renamed in 1901. Metropolitan service began in 1906, and withdrawn 1913–36.{{sfn|Rose|2007}} ||{{Coord|51|31|08|N|000|03|40|W|region:GB_type:railwaystation|name=20 - Whitechapel station}}
|-
|[[Stepney Green tube station|Stepney Green]] || [[File:Stepney Green stn building.JPG|100px|alt=A brick building under a slate roof with a pale front; two arched doorways on the left and four arched windows to the right, above which a rectangular, dark blue sign reading "STEPNEY GREEN STATION" in white letters]] || 23 June 1902 ||Metropolitan service began in 1941.{{sfn|Rose|2007}} ||{{Coord|51|31|19|N|000|02|47|W|region:GB_type:railwaystation|name=21 - Stepney Green tube station}}
|-
|[[Mile End tube station|Mile End]] || [[File:Mile End stn entrance.JPG|100px|alt=A grey-bricked building with a rectangular, dark blue sign reading "MILE END STATION" in white letters all under a light blue sky with white clouds]] || 2 June 1902 ||Cross platform interchange with [[Central line (London Underground)|Central line]]. Metropolitan service began in 1936.{{sfn|Rose|2007}}||{{Coord|51|31|30|N|000|01|59|W|region:GB_type:railwaystation|name=22 - Mile End tube station}}
|-
|[[Bow Road tube station|Bow Road]] ({{rail-interchange|london|dlr}} at [[Bow Church DLR station|Bow Church]]) || [[File:Bow Road stn building.JPG|100px|alt=A red-bricked building with a blue sign reading "BOW ROAD STATION" in white letters and a tree in the foreground all under a blue sky with white clouds]] || 11 June 1902 ||Main-line station opened in 1876 and moved in 1892.{{sfn|Butt|1995|p=41}} Metropolitan service began in 1936,{{sfn|Rose|2007}} main-line station closed in 1947.{{sfn|Butt|1995|p=41}}||{{Coord|51|31|38|N|000|01|29|W|region:GB_type:railwaystation|name=23 - Bow Road tube station}}
|-
|[[Bromley-by-Bow tube station|Bromley-by-Bow]] {{access icon}} || [[File:Bromley-by-Bow stn entrance.JPG|100px|alt=A squat bricked building behind a concrete wall with a dark blue sign reading "BROMLEY-BY-BOW STATION" in white letters]] || 2 June 1902 || Opened as main-line station in 1894. First served as Bromley, Metropolitan service began in 1936, main-line station closed in 1940 and renamed in 1967.{{sfn|Rose|2007}}{{sfn|Butt|1995|p=45}}||{{Coord|51|31|26|N|000|00|41|W|region:GB_type:railwaystation|name=24 - Bromley-by-Bow tube station}}
|-
|[[West Ham station|West Ham]] {{access icon}} {{rail-interchange|gb|rail}} {{rail-interchange|london|dlr}}  || [[File:West Ham stn entrance.JPG|100px|alt=A brown-bricked building with a large, grey sign reading "WEST HAM" in white letters and four people in front all under a light grey sky]] || 2 June 1902 || Connects with [[Jubilee line]], [[Docklands Light Railway]] and [[c2c]] services. Main-line station opened 1901, Named West Ham (Manor Road) from 1924 to 1969, Metropolitan service began in 1941 and main-line station closed 1994.{{sfn|Rose|2007}}{{sfn|Butt|1995|p=245}}||{{Coord|51|31|41|N|000|00|14|E|region:GB_type:railwaystation|name=25 - West Ham station}}
|-
|[[Plaistow tube station|Plaistow]] || [[File:Plaistow station building.JPG|100px|alt=A red bricked cube shaped building with a rectangular, dark blue sign reading "PLAISTOW STATION" in white letters and people walking on the pavement in front]] || 2 June 1902 || Main-line station opened in 1858.{{sfn|Butt|1995|p=186}} Metropolitan service began in 1936.{{sfn|Rose|2007}}||{{Coord|51|31|53|N|000|01|02|E|region:GB_type:railwaystation|name=26 - Plaistow tube station}}
|-
|[[Upton Park tube station|Upton Park]] || [[File:Upton Park tube station 1.jpg|100px|alt=A red-and-brown bricked building with a rectangular, dark blue sign reading "UPTON PARK STATION" in white letters all under a light blue sky]] || 2 June 1902 ||Main-line station opened in 1877.{{sfn|Butt|1995|p=238}} Metropolitan service began in 1936.{{sfn|Rose|2007}}||{{Coord|51|32|06|N|000|02|04|E|region:GB_type:railwaystation|name=27 - Upton Park tube station}}
|-
|[[East Ham tube station|East Ham]] {{access icon}} || [[File:East ham tube station london.jpg|100px|alt=A red- and brown-bricked building with a blue sign reading "EAST HAM STATION" in white letters and people walking in front all under a white sky]] ||2 June 1902||Main-line station opened in 1858.{{sfn|Butt|1995|p=88}} Metropolitan service began in 1936.{{sfn|Rose|2007}}||{{Coord|51|32|20|N|000|03|06|E|region:GB_type:railwaystation|name=28 - East Ham tube station}}
|-
|[[Barking station|Barking]] {{access icon}} {{rail-interchange|london|overground}} {{rail-interchange|gb|rail}} || [[File:Barking station building2.JPG|100px|alt=A glass and steel building with a canopy, a row of shops at ground level. There is a bus waiting at a bus stop in front of the building, and cars waiting with people. A sign above an entrance readings "Barking" with symbols for National Rail and London Underground.]] || 2 June 1902 ||Connects with [[c2c]], [[Suffragette line]], and [[District line]] services to Upminster. Main-line station opened in 1854.{{sfn|Butt|1995|p=27}} District Railway service withdrawn 1905–1908. Metropolitan service began in 1936.{{sfn|Rose|2007}}||{{Coord|51|32|21|N|000|04|54|E|region:GB_type:railwaystation|name=29 - Barking station}}
|}

==Notes and references==

===Notes===
{{notelist}}

===References===
{{reflist|colwidth=30em}}

===Bibliography===
{{refbegin}}
* {{cite book|last=Bruce|first=J Graeme|year=1983|title=Steam to Silver. A history of London Transport Surface Rolling Stock|publisher=Capital Transport|isbn=0-904711-45-5}}
* {{Butt-Stations}}
*{{cite book |last=Day |first=John R. |title=The Story of London's Underground |edition=1st |year=1963 |publisher=[[London Transport Board|London Transport]] |location=Westminster }}
* {{cite book|last=Green|first=Oliver|year=1987|title=The London Underground: An illustrated history|publisher=[[Ian Allan Publishing|Ian Allan]]|isbn=0-7110-1720-4}}
* {{cite book|last=Horne|first=Mike|title=The Metropolitan Line|year=2003|publisher=Capital Transport|isbn=1-85414-275-5|url-access=registration|url=https://archive.org/details/metropolitanline00mike}}
* {{cite book|last=Horne|first=Mike|title=The District Line|year=2006|publisher=Capital Transport|isbn=1-85414-292-5}}
* {{cite book|title=London's Metropolitan Railway|last=Jackson|first=Alan|year=1986|publisher=David & Charles|isbn=0-7153-8839-8}}
* {{cite book|last=Leboff|first=David |title=London Underground Stations|year=1994|publisher=Ian Allan|isbn=978-0-7110-2226-3}}
* {{cite book|last=Rose|first=Douglas|title=The London Underground: A Diagrammatic History|edition=8th|date=December 2007|orig-year=1980|publisher=Capital Transport|isbn=978-1-85414-315-0}}
* {{cite book|last=Wolmar|first=Christian|author-link=Christian Wolmar|year=2004|title=The Subterranean Railway: how the London Underground was built and how it changed the city forever|publisher=Atlantic|isbn=1-84354-023-1}}
{{refend}}

==Further reading==
* {{cite book|title=London Railway Map|year=2001|publisher=Quail Maps|isbn=978-1-898319-54-2}}
*{{cite book |last=Yonge |first=John |editor-last=Jacobs |editor-first=Gerald |title=5: Southern & TfL |edition=3rd |series=Railway Track Diagrams |date=November 2008 |orig-year=1994 |publisher=Trackmaps |location=Bradford on Avon |isbn=978-0-9549866-4-3}}

==External links==
{{Commons category}}
{{Portal|London transport}}
{{Attached KML|display=title,inline}}
* {{Official website}}
{{maplink|display=title|type=line|from=Hammersmith & City line.map}}
{{Hammersmith & City line navbox}}
{{good article}}

{{DEFAULTSORT:Hammersmith and City Line}}
[[Category:London Underground lines]]
[[Category:Transport in the London Borough of Camden]]
[[Category:Transport in the London Borough of Hammersmith and Fulham]]
[[Category:Transport in the London Borough of Islington]]
[[Category:Transport in the Royal Borough of Kensington and Chelsea]]
[[Category:Transport in the City of Westminster]]
[[Category:Transport in the City of London]]
[[Category:Transport in the London Borough of Tower Hamlets]]
[[Category:Transport in the London Borough of Newham]]
[[Category:Transport in the London Borough of Barking and Dagenham]]
[[Category:Railway lines opened in 1864]]
[[Category:Standard gauge railways in London]]
[[Category:1864 establishments in England]]
[[Category:Hammersmith & City line| ]]
[[Category:Automatic London Underground lines]]