Third rail railways predominantly operates in urban areas. Notable exceptions are (or were) mainline electrics of the former Southern Region of British Railways and a few interurban railways in the US. In Europe top contact third rail tends to be limited to early electrified urban railways (the current conductor is normally left naked on top), contrary to North America where it usually has a protecting cover. Considered safe, the covered top contact conductor also appeared at most North American systems built relatively recently. Modern European systems predominantly make use of bottom or side contact power rails.

There are numerous urban rail systems, including these running mostly in tunnels, which do not use third rail at all. Such systems can be found in Asia, which may have been influenced by the overhead power supply formula followed by Tokyo Metro after 1960. All South Korean systems use overhead wires (or rigid conductors), as do most modern mainland Chinese metros. In Europe all significant Spanish systems now have overhead power supply. Modern Latin America urban rail also uses overhead wires, though with some important exceptions.

Special group of bottom power supplied railways are rubber-tyred systems. In fact, it may be difficult to classify them beyond any doubt. They may be trains but are they still railways? And do they still have 'third' rails? Despite doubts, such guided systems have been included in the list below.

The list does not include conduit system trams (trolleys), once quite popular in some countries, but none survive.

Notes: t/c top contact; others have bottom or side contact power rails (or rail type not known) gr/c combined with guiding rail on rubber-tyred systems (including light metros such as VAL) b/c b/c – bottom contact

Europe

Country Location Name of System Notes Link Armenia Yerevan Yerevan Metro     Austria Vienna Vienna U-Bahn (b/c) Except line U6   Azerbaijan Baku Baku Metro     Belarus Minsk Minsk Metro     Belgium Brussels Brussels Métro/Metro (STIB-MIVB)   STIB-MIVB Bulgaria Sofia Sofia Metro     Czech Republic Prague Prague Metro (b/c)   Denmark Copenhagen Copenhagen Metro   Metro Finland Helsinki Helsinki Metro     France Paris Paris Metro (all lines on rails: t/c) (all lines on tyres: gr/c)   Orlyval (gr/c)     Culoz–Modane railway (gr/c) 1925–1976 Lyon Lyon Metro Line C is a rack railway and thus uses overhead wires   Marseille Marseille Metro (gr/c)   Rennes Rennes VAL (gr/c)   Toulouse Toulouse VAL (gr/c)   Lille Lille VAL (gr/c)   Bordeaux Tramway de Bordeaux (partly)   Villefranche-de-Conflent Yellow Train (t/c)   Haute-Savoie Ligne de Saint Gervais - Vallorcine (t/c, covered occasionally)   Georgia Tbilisi Tbilisi Metro     Germany Berlin Berlin S-Bahn     Berlin U-Bahn (small profile lines: t/c)   Hamburg Hamburg S-Bahn (side contact)   Hamburg U-Bahn     Munich Munich U-Bahn     Nuremberg Nuremberg U-Bahn     Frankfurt Frankfurt/Main Airport :de:SkyLine PM (gr/c)   Greece Athens Athens Metro t/c except Line 3 between and .   Thessaloniki Thessaloniki Metro b/c   Hungary Budapest Budapest Metro (t/c) except 'Földalatti' (now Line M1)   Italy Brescia Brescia Metro AnsaldoBreda Driverless Metro   Milan Milan metro line 1 4 rails   Milan metro line 5 AnsaldoBreda Driverless Metro   Ferrovie Varesine Former System (1901–1951), t/c)   Turin Turin VAL (gr/c)   Superga Rack Railway Naples "metropolitana FS" Former system (1925–1935), t/c   Netherlands Amsterdam Amsterdam Metro (b/c) Except Sneltram alignments   Rotterdam Rotterdam Metro (b/c) Except Sneltram alignments   Norway Oslo Oslo T-bane   T-bane Poland Warsaw Warsaw Metro (b/c)   Portugal Lisbon Lisbon Metro (t/c)   Romania Bucharest Bucharest Metro (b/c), except sidings where overhead wire is used   Russia Moscow Moscow Metro     Saint Petersburg Saint Petersburg Metro     Novosibirsk Novosibirsk Metro       Kazan Metro       Yekaterinburg Metro       Nizhny Novgorod Metro       Omsk Metro       Samara Metro     Spain Madrid Madrid Barajas International Airport PM (gr/c)   Barcelona Barcelona Metro Former System (until 2002): Line 1 (t/c, covered) and lines 3 and 4 (b/c)   Sweden Stockholm Stockholm T-bana (t/c, covered)   Switzerland   Chemin de Fer de Martigny au Châtelard partly 3rd rail   Turkey İzmir İzmir Metro     Ankara Ankara Metro   Istanbul Istanbul Metro     Ukraine Kyiv Kyiv Metro     Kharkiv Kharkiv Metro     Dnipro Dnipro Metro     United Kingdom Brighton Volk's Electric Railway (t/c)   Glasgow Glasgow Subway (t/c)   Hythe Hythe Pier Railway     London Docklands Light Railway (b/c)   London Underground (four-rail, t/c)   LNWR suburban electrification (four-rail, t/c at inception, but now three-rail, t-c between Harrow & Wealdstone and Watford Junction, three-rail, t-c between Acton Central and Gunnersbury, third-rail, t-c between Shoreditch and Highbury & Islington, and overhead electrified between Dalston and Acton Central. Adjacent sections of overhead and third rail, t-c between Dalston and Highbury & Islington. Still four-rail, t-c on sections shared with London Underground (Gunnersbury-Richmond, Queens Park-Harrow & Wealdstone). Shoreditch to Broad Street section now closed)   Northern City Line (t/c)   Liverpool Merseyrail (t/c)   Southern England Southern Region (t/c), (large area covering most of the current South Western, Island Line, Southern and Southeastern TOCs )   Stansted Airport Airport people mover Transfer between terminals  

United Kingdom

Former:

Giant's Causeway Tramway (elevated third rail; later replaced by overhead wire) Bessbrook and Newry Tramway (t/c) Liverpool Overhead Railway (t/c) Manchester Victoria - Bury (by the Lancashire and Yorkshire Railway) (side contact) Tyneside Electrics (t/c) Switzerland Former: Chemin de fer Fribourg–Morat–Anet (1903–1947)

Asia

Country Location Name of System Notes China   Beijing Subway     Tianjin Metro t/c, covered   Wuhan Metro     Guangzhou Metro Line 4&5   India   Kolkata Metro t/c   Kanpur Metro b/c   Namma Metro b/c   Kochi Metro b/c   Rapid Metro Gurgaon b/c   Ahmedabad Metro b/cIndonesia Palembang Palembang LRT   Jakarta Jakarta LRT  Iran   Tehran Metro   Japan Hiroshima Astram Line (gr/c) Kobe Portliner (gr/c) Rokkoliner (gr/c) Nagoya Nagoya Municipal Subway Higashiyama, Meijō and Meikō lines OsakaOsaka Municipal SubwayMidōsuji, Tanimachi, Yotsubashi, Chūō and Sennichimae lines Kita-Osaka Kyūkō Railwayreciprocal service with Midōsuji LineKeihanna Linereciprocal service with Chūō Line New Tram (gr/c) Sapporo Sapporo Municipal Subway Namboku Line Tokyo Yamaman Yukarigaoka Line (gr/c) Tokyo Metro Ginza and Marunouchi Lines (t/c, covered) Yurikamome Line (gr/c) Seibu Yamaguchi Line (gr/c) Saitama New Shuttle (gr/c) Yokohama Yokohama Municipal Subway Blue Line Kanazawa Seaside Line (gr/c) Malaysia Kuala Lumpur Ampang Line   Kelana Jaya Line   North Korea Pyongyang Pyongyang Metro   Philippines Metro Manila MRT-7 Under construction;; Singapore Singapore Light Rail Transit (LRT) Three separate systems Mass Rapid Transit (MRT)  Except North East Line South KoreaBusanBusan-Gimhae Light Rail Transit (b/c)SeoulUi LRT (b/c) UijeongbuU Line (gr/c)YonginEverline (t/c) Taiwan Taipei Taipei MRT (VAL Line: gr/c) Kaohsiung Kaohsiung MRT   Thailand Bangkok MRT   BTS skytrain   United Arab Emirates Dubai Dubai Metro Uzbekistan Tashkent Tashkent Metro  

Japan

Sapporo Chikatetsu - Namboku Line: rubber-tyred with central guiding/return rail and a flat power rail (t/c) which is also one of the rollways for the rubber tyres; Tōzai and Tōhō Lines: rubber-tyred with o/h power supply, a flat return rail which is also one of the rollways for the rubber tyres and a central guiding rail Nagoya Chikatetsu - Higashiyama, Meijō, Meikō Lines (t/c, covered) Osaka Chikatetsu - except Sakaisuji, Nagahori Tsurumi-ryokuchi and Imazatosuji Lines (t/c, covered) Kinki Nippon Tetsudō - Keihanna Line (t/c, covered) Kita-Osaka Kyuko Railway (t/c, covered)

Former: Shin'etsu Line at Usui Pass (Yokokawa-Karuizawa) - mainline system Komaki Peachliner (rubber-tyred, but power supply separate from guiding rail; closed in 2006)

Africa

Country Location Name of System Notes Egypt Cairo Cairo Metro Line 2 (Shobra - El Mounib)Line 3 (Attaba - Al Ahram) Nigeria Lagos Lagos Rail Mass Transit Blue Line

North America

Country Location Name of System Notes Canada Montreal Montreal Métro (gr/c) Toronto Toronto subway and RT (t/c, covered) Vancouver Vancouver SkyTrain (t/c, covered) Mexico Mexico City Mexico City Metro All lines (gr/c), except Line A (overhead) United States Chicago Chicago 'L' Chicago 'L' and Subway, (t/c) New York City Airtrain JFK   Amtrak Penn Station complex, north and east river tunnels on Northeast Corridor, Empire tunnel and Sunnyside Yard for diesel/electric engines and LIRR service to Penn Station (t/c, covered) Long Island Rail Road NYC commuter system (t/c, covered); (Portions run on diesel & diesel/electric hybrid) Metro-North Railroad NYC commuter system (b/c); (Portions run on diesel & diesel/electric hybrid); (New Haven Line trains switch between third rail and overhead catenary power between Mount Vernon East and Pelham, at speed) New York City Subway (t/c, covered) PATH (t/c, covered) Staten Island Railway (t/c, covered) San Francisco BART AirTrain SFO (gr/c) Washington DC Washington Metro (t/c, covered) Boston Massachusetts Bay Transportation Authority (MBTA) Red, Orange and Blue (partly) Lines (t/c) Philadelphia SEPTA Metro (t/c, covered) (B, L, M) PATCO (t/c, covered) Atlanta MARTA (t/c, covered) Atlanta International Airport PM (gr/c) Los Angeles Metro Rail Red Line (t/c, covered)Miami Miami Metrorail (t/c, covered) Miami Metromover (gr/c) Baltimore Baltimore Metro Subway (t/c, covered) Detroit Detroit People Mover   Chicago O'Hare International Airport Transit System (gr/c) Tampa Tampa International Airport PM (gr/c) Denver Denver International Airport PM (gr/c) Seattle Satellite Transit System PM in Airport (gr/c) Dallas Dallas/Fort Worth International Airport PM (gr/c) San Juan, Puerto Rico Tren Urbano Semi-suspended inverted collector railSan Juan Tren Urbano Light Rail System, Puerto Rico (b/c?)

United States

Former:

World's Columbian Exposition (Chicago, 1893) railway (t/c) Pennsylvania Railroad, suburban network New York - New Jersey (t/c, covered) Albany & Hudson Railroad (t/c) Baltimore Belt Line, Baltimore and Ohio Railroad Scioto Valley Traction Co. (Ohio) (t/c?) Oneida Railway (NY Central RR) (b/c) Detroit River Tunnel (Detroit - Windsor), Michigan Central Railroad Michigan Rly.: Grand Rapids - Kalamazoo and branch lines Central California Traction Co., Sacramento – Stockton (b/c) Sacramento Northern Railway (t/c) Laurel Line (Scranton/Wilkes-Barre, PA) Aurora Elgin & Chicago Railroad (t/c) Key System - on San Francisco–Oakland Bay Bridge (t/c, covered) Jacksonville VAL (gr/c) Nantasket Beach Branch; Greenbush Line Braintree-Cohasset, suburban New Haven Railroad, (t/c, center of track)

South America

Country Location Name of System Notes Argentina   Trenes de Buenos Aires Mitre and Sarmiento railwaysBuenos Aires Metrovías Urquiza railway, Buenos Aires subway line B (t/c, covered) Brazil   São Paulo Metro (b/c), except Line 5 (overhead) and 15 (monorail)  Rio de Janeiro Metro (t/c, partly covered)   Federal District Metro (b/c) Chile   Santiago Metro Line 1, Line 2 and Line 5 (gr/c), Line 4 and Line 4A (t/c) Venezuela Caracas Caracas Metro  

References