Circle Line or circular line is an expression commonly used to describe a

circle route A circle route (also circumference, loop, ring route, ring line or orbital line) is a public transport route following a path approximating a circle or at least a closed curve. The expression "circle route" may refer in particular to: * a rout ...

in a public transport network or system. Circle Line or Circular line may also refer to:

Railways

Asia

Bangladesh

Chittagong Circular Railway Chittagong Circular Railway is a suburban railway system in the city of Chittagong in Bangladesh to ameliorate the commuters' suffering and improve traffic situation in the city. The construction was complete by February 2013 and it became operatio ...

China

Line 2 (Beijing Subway) Line 2 of the Beijing Subway () is a rapid transit rail line in central Beijing that runs in a rectangular loop around the city centre. The line traces the Ming dynasty inner city wall, which was demolished and paved over by the 2nd Ring Road and ...

Line 10 (Beijing Subway) Line 10 of the Beijing Subway () is the second loop line in Beijing's rapid transit network as well as the longest and most widely used line. The line is in length and runs entirely underground through Haidian, Chaoyang and Fengtai Districts ...

Line 4 (Shanghai Metro) Line 4 is a loop line of the Shanghai Metro network. Its older rolling stock carry a bright purple colour belt to differentiate them from Line 3 trains which share a portion of its route, while the newer stock features a yellow and purple livery, ...

Line 7 (Chengdu Metro) Line 7 is a loop line of the Chengdu Metro (). It loops between North railway station, Chengdu University of Technology, Huaishudian, Chengdu East railway station, Sichuan Normal University, Chengdu South railway station, Taipingyuan, Jinsha ...

Line 5 (Zhengzhou Metro) Line 5 of Zhengzhou Metro () is a rapid transit line in Zhengzhou that runs in a loop around the city center. It is the only loop-line planned in the Zhengzhou Metro system. The line opened on 20 May 2019. This line is the first rapid transit line ...

Loop line (Chongqing Rail Transit) The Loop line of Chongqing Rail Transit is a rapid transit loop line in Chongqing, China. The line is also known as Line 0. The metro line serves three major railway stations in Chongqing: Chongqing North railway station, Shapingba railway stati ...

Line 11 (Guangzhou Metro) Line 11 of the Guangzhou Metro () is a rapid transit rail line under construction in Guangzhou. It will be a loop line around the city center, connecting Guangzhou railway station, Guangzhou East railway station, , and . Summary The line form ...

(under construction) *

Line 3 (Harbin Metro) Line 3 of the Harbin Metro () is a rapid transit Rapid transit or mass rapid transit (MRT), also known as heavy rail or metro, is a type of high-capacity public transport generally found in urban areas. A rapid transit system that primar ...

(partly in operation) *

Guiyang railway loop line The Guiyang railway loop line is a higher-speed railway in Guiyang, Guizhou Province, China. Description It completes a ring of railways around Guiyang. The entire loop line is 113 km in length with 17 stations. It is operated by China Ra ...

India

Delhi Ring Railway The Delhi Ring railway, a part of Delhi's suburban railway services, is a circular railway network in Delhi that runs parallel to the Ring Road. It was laid in 1975 primarily to service freight trains that could bypass the crowded and passenge ...

Kolkata Circular Railway Kolkata Circular Railway, also known as the Kolkata Chakra Rail (), is a long railway loop line operated by the Sealdah division of the Eastern Railway zone of Indian Railways, encircling the city of Kolkata. Services The line begins and term ...

Pink Line (Delhi Metro) The Pink Line (Line 7) is a metro rail line of the Delhi Metro, a rapid transit system in Delhi, India. It consists of 38 metro stations from Majlis Park to Shiv Vihar, both in North Delhi. The Pink Line, with a length of , is the longest ...

(partly in operation)

Japan

Meijō Line The is a subway line forming part of the Nagoya Municipal Subway system in Nagoya, Japan, operated by Transportation Bureau City of Nagoya. It is a loop line that runs from Kanayama, via Sakae, Ōzone, Nagoya Daigaku, and back to Kanayam ...

, in Nagoya * Osaka Loop Line, in Osaka * Sapporo Streetcar, in Sapporo * Toei Ōedo Line, in Tokyo *

Toyama City Tram Line The of Toyama Chihō Railway, commonly referred to as , is a narrow gauge tram system in Toyama, Japan. Its first operation was in 1912. It has 23 stations and runs 7.3 km. While the system officially consists of five lines, the operat ...

Route 3, in Toyama *

Yamanote Line The Yamanote Line ( ja, 山手線, Yamanote-sen) is a loop service in Tokyo, Japan, operated by the East Japan Railway Company (JR East). It is one of Tokyo's busiest and most important lines, connecting most of Tokyo's major stations and urban ...

, in Tokyo

Malaysia

MRT Circle Line The MRT 3, MRT Line 3 or MRT Circle Line is a proposed thirteenth rail transit line, the third Mass Rapid Transit line and the fourth fully automated and driverless rail system in the Klang Valley, Malaysia. Once completed, this line would ...

, in Kuala Lumpur

Myanmar

* Yangon Circular Railway

Pakistan

* Karachi Circular Railway

Singapore

Circle MRT line The Circle MRT Line (CCL) is a medium-capacity Mass Rapid Transit line in Singapore operated by SMRT Corporation. It runs in a currently incomplete loop from Dhoby Ghaut station in the city area of Singapore to HarbourFront station in the so ...

South Korea

* Seoul Subway Line 2

Taiwan

* Circular light rail, in Kaohsiung * Circular line (Taipei Metro)

Thailand

MRT Blue Line The MRT Blue Line ( th, รถไฟฟ้า สายสีน้ำเงิน) or MRT Chaloem Ratchamongkon Line ( th, รถไฟฟ้ามหานคร สายเฉลิมรัชมงคล) is Bangkok's third rapid transit li ...

, in Bangkok

Europe

Denmark

* City Circle Line, in Copenhagen

Finland

* Ring Rail Line, in Vantaa (Greater Helsinki)

Germany

* Berlin Ringbahn

Norway

Ring Line (Oslo) The Ring Line ( no, T-baneringen or ) is the newest rapid transit loop line of the Oslo Metro of Oslo, Norway. It connects to the Sognsvann Line in the west and the Grorud Line in the east; along with these two lines and the Common Tunnel, th ...

Poland

* Łódz Circular line, a section of the Łódzka Kolej Aglomeracyjna commuter rail service, Łódz, Poland

Russia

* Bolshaya Koltsevaya line, also known as the Big Circle line, a rapid transit line under construction in Moscow (Line 11) * Koltsevaya line, also called the Circle line, a rapid transit line in Moscow (Line 5) * Moscow Central Circle, an urban/metropolitan rail line around Moscow (Line 14)

Spain

Line 6 (Madrid Metro) Line 6 of the Madrid Metro opened originally between Cuatro Caminos and Pacifico in 1979. This is one of two circular lines in Madrid, but unlike Line 12, it did not open as a full circle. The circle was completed in 1995, taking four stages fr ...

Line 12 (Madrid Metro) Line 12, also known as MetroSur (Spanish for ''MetroSouth''), is a line of the Madrid Metro inaugurated on 11 April 2003. Line 12 is a circle line that is not in the city of Madrid, but links five suburban towns south of Madrid, serving around on ...

United Kingdom

* Circle line (London Underground), in London * Cathcart Circle Lines, in Glasgow *

Fife Circle Line The Fife Circle Line is the local rail service north from Edinburgh. It links towns of south Fife and the coastal towns along the Firth of Forth before heading to Edinburgh. Operationally, the service is not strictly a circle route, but, rathe ...

, in Edinburgh and Fife *

Glasgow Subway The Glasgow Subway is an underground light metro system in Glasgow, Scotland. Opened on 14 December 1896, it is the fourth-oldest underground rail transit system in Europe after the London Underground, Liverpool's Mersey Railway and the Budapes ...

, in Glasgow

North America

United States

* Chicago 'L' Circle Line proposed but unbuilt

Oceania

Australia

* City Circle, in Sydney * City Circle free tram, in Melbourne *City Circle trains were originally a feature of the

City Loop The City Loop (originally called the Melbourne Underground Rail Loop or MURL) is a mostly-underground and partly surface-level subway and rail system in the central business district (CBD) of Melbourne, Victoria, Australia. The Loop includes ...

in Melbourne *

Inner Circle railway line The Inner Circle Line was a steam era suburban railway line (later electrified) in Melbourne, Australia. It served the inner-northern suburbs of Parkville, Carlton North, Fitzroy North, and Fitzroy. At its closure, it ran from Royal Par ...

, in Melbourne *

Outer Circle railway line The Outer Circle Railway was opened in stages in 1890 and 1891, as a steam-era suburban railway line, in Melbourne, Australia. It traversed much of the modern City of Boroondara, including the suburbs of (from north to south) Kew East, Camberw ...

, in Melbourne

Waterways

;United States *

Circle Line Downtown Circle Line Downtown is a sightseeing harbor cruise company that operates out of the South Street Seaport Pavilion Pier at the Financial District in Manhattan under Harbor Experience Companies. History Circle Line Downtown was established by Pre ...

, in New York City *

Circle Line Sightseeing Cruises Circle Line Sightseeing Cruises is a boat-based sightseeing and entertainment company in Manhattan, New York. Its principal business is operating guided tours of New York City from its base at Pier 83 in the Hell's Kitchen neighborhood. History Ci ...

, in New York City

Others

* ''Circle Line'' (film), Singaporean film