Line 1 or 1 line may refer to:

Public transport

Africa

Line 1 (Algiers Metro) The Algiers Metro is a rapid transit system serving Algiers, the capital of Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital ...

, Algeria *

Cairo Metro Line 1 Cairo Metro Line 1 is the first line of the Cairo Metro in Cairo, Egypt. It is the first metro system in the Africa and the Middle East. It was constructed in 1987 and connects Helwan with El Marg, stopping at 35 stations. Line 1, sometimes call ...

, Egypt

Asia

China

Line 1 (Beijing Subway) Line 1 of the Beijing Subway () is the oldest and one of the busiest lines of Beijing's mass transit rail network. Line 1 runs underneath Chang'an Avenue, the city's grand east–west thoroughfare, right through the heart of Beijing with stops on ...

Line 1 (Changchun Rail Transit) Line 1 of the Changchun Rail Transit () 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 t ...

Line 1 (Changsha Metro) Line 1 of the Changsha Metro The Changsha Metro (officially ; also called ) is a rapid transit system in Changsha, the capital city of Hunan province in China. The first operational line, Line 2, commenced service on April 29, 2014, making Ch ...

Line 1 (Changzhou Metro) Line 1 of Changzhou Metro () is a rapid transit line in Changzhou. It connects the two railway stations Changzhou railway station, Changzhou and Changzhou North railway station, Changzhou North. Construction for Line 1 began on 28 October 2014. Th ...

Line 1 (Chengdu Metro) Line 1 of the Chengdu Metro () is the first line to enter revenue service on the metro network in Chengdu, Sichuan, China. The line started construction in 2005, and entered service on September 27, 2010. On July 25, 2015, an extension towards Gua ...

Line 1 (Chengdu Tram) Chengdu Tram Line 1 is under planning. It was once named Yizhou Avenue Tram, with a total length of 9.62 kilometers and 16 stations. The route is planned to be laid along Yizhou Avenue, starting from Chengdu South railway station and arriving ...

* Line 1 (Chongqing Rail Transit) *

Line 1 (Dalian Metro) Line 1 of the Dalian Metro (M1; ) is a rapid transit line running from north to south in central Dalian Dalian () is a major sub-provincial port city in Liaoning province, People's Republic of China, and is Liaoning's second largest city (af ...

Line 1 (Dongguan Rail Transit) Line 1 of the Dongguan Rail Transit, (), is a rapid transit line under construction in Dongguan, Guangdong. It has a planned 25 stations and connect Machongxi in the North, to Huangjiangnan in the south. The Phase 1 of Line 1 in Dongguan will sta ...

Line 1 (Foshan Metro) The Guangfo Metro or Guangfo line is a intercity rapid transit, metro line that connects the Chinese cities Foshan and Guangzhou. As of December 2018, the line is currently long and has 25 metro station, stations, which are all underground. H ...

or Guangfo Metro *

Line 1 (Fuzhou Metro) Line 1 of Fuzhou Metro () is a north-south line of the Fuzhou Metro network in Fuzhou, Fujian Province, China. This line is the first operating metro line in the Fuzhou Metro system, inaugurated on May 18, 2016. By June 2016, the south section, ru ...

Line 1 (Guangzhou Huangpu Tram) Guangzhou Huangpu Tram Line 1 () is a tram line serving the Huangpu District of Guangzhou. The initial section opened on 1 July 2020. The remaining section opened on 28 December 2020. It is in length with 20 stations, currently 19 stations are ...

Line 1 (Guangzhou Metro) Line 1 of the Guangzhou Metro runs from to (). Apart from and Xilang, all stations in Line 1 are underground. The first section, from Xilang to Huangsha, opened on 28 June 1997, making Guangzhou the fourth city in mainland China to have a metr ...

Line 1 (Guilin Rail Transit) Guilin Rail Transit (), also known as Guilin Skyrail, is a monorail rapid transit, metro system under development in Guilin, Guangxi, China. Skyrail is the branding of the BYD Company, BYD developed monorail system. There are 7 lines planned by 204 ...

(under construction) *

Line 1 (Guiyang Metro) Line 1 of the Guiyang Metro, is a subway line in Guiyang Guiyang (; ; Mandarin pronunciation: ), historically rendered as Kweiyang, is the capital of Guizhou province of the People's Republic of China. It is located in the center of the prov ...

Line 1 (Hangzhou Metro) Line 1 of the Hangzhou Metro () is an arc-shaped rapid transit line running from Xianghu station in western Xiaoshan District to Xiaoshan International Airport in eastern Xiaoshan District, passing through downtown Hangzhou. The line opened on 2 ...

Line 1 (Harbin Metro) Line 1 of the Harbin Metro () is a rapid transit line running from west to east Harbin Harbin (; mnc, , v=Halbin; ) is a sub-provincial city and the provincial capital and the largest city of Heilongjiang province, People's Republic of C ...

Line 1 (Hefei Metro) The Line 1 of Hefei Metro () is an underground metro line in Hefei Hefei (; ) is the capital and largest city of Anhui Province, People's Republic of China. A prefecture-level city, it is the political, economic, and cultural center of Anhui. I ...

Line 1 (Hohhot Metro) Line 1 of Hohhot Metro is a rapid transit line in Hohhot, Inner Mongolia, China. The first phase of Line 1 is long. It was opened on 29 December 2019. The color for Line 1 is red. Opening timeline Stations References {{DEFAULTSORT:Hohhot ...

Line 1 (Jinan Metro) Jinan Metro Line 1 () 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 primarily or ...

Line 1 (Kunming Metro) Line 1 of Kunming Metro () is a rapid transit line connecting Chenggong District with Kunming's urban center. The line is long with 22 stations (excluding Line 2) with as the northern terminal, and as the southern terminal of the main line, ...

Line 1 (Lanzhou Metro) Line 1 of the Lanzhou Metro is a subway line in Lanzhou running from to , has 20 stations and is long. It opened on 23 June 2019. History Line 1 started construction on July 9, 2012. Line 1 is with 20 stations. The line is completely undergrou ...

Line 1 (Nanchang Metro) Nanchang Metro Line 1 (also known as Nanchang Rail Transit Line 1 in official documents) is the first rail transit line ever constructed in Nanchang and has opened in 2015. The Phase 1 of Line 1 runs from Shuanggang to Olympic Stadium, covered Nort ...

* Line 1 (Nanhai Tram) * Line 1 (Nanjing Metro) *

Line 1 (Nanning Metro) Line 1 of the Nanning Metro 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 primarily ...

Line 1 (Nantong Metro) Line 1 of the Nantong Rail Transit () is a rapid transit line in Nantong, Jiangsu Jiangsu (; ; pinyin: Jiāngsū, alternatively romanized as Kiangsu or Chiangsu) is an eastern coastal province of the People's Republic of China. It is one ...

Line 1 (Ningbo Rail Transit) Line 1 of Ningbo Rail Transit () is a rapid transit line in Ningbo. It starts from Gaoqiao Town in the west, crosses the central area of Ningbo, and reaches Beilun District in the east. The line started service on May 30, 2014.(Chines今日上午10 ...

Line 1 (Qingdao Metro) Line 1 of Qingdao Metro () is an underground metro line in Qingdao. It crosses Jiaozhou Bay The Jiaozhou Bay (; german: Kiautschou Bucht, ) is a bay located in the prefecture-level city of Qingdao (Tsingtau), China. The bay has historically ...

* Line 1 (Shanghai Metro) *

Line 1 (Shaoxing Metro) Line 1 of Shaoxing Metro () is a metro line in Shaoxing. Section ;Main line (Keqiao section) The section from Guniangqiao to China Textile City opened on 28 June 2021. The section is in length with 10 stations. ;Main line (remaining section) T ...

Line 1 (Shenyang Metro) Line 1 of the Shenyang Metro () is a rapid transit line running from west to east Shenyang Shenyang (, ; ; Mandarin pronunciation: ), formerly known as Fengtian () or by its Manchu language, Manchu name Mukden, is a major China, Chinese sub-p ...

* Line 1 (Shenzhen Metro) *

Line 1 (Shijiazhuang Metro) Line 1 of the Shijiazhuang Metro () is a rapid transit line in Shijiazhuang, Hebei Hebei or , (; alternately Hopeh) is a northern province of China. Hebei is China's sixth most populous province, with over 75 million people. Shijiaz ...

* Line 1 (Suzhou Rail Transit) *

Line 1 (Taiyuan Metro) The Taiyuan Metro is a rapid transit system in Taiyuan, capital of China's Shanxi province. The system opened on December 26, 2020. Line 1 has been under construction since 30 December 2019 and is scheduled to open in 2024. History The Taiyu ...

(planned) *

Line 1 (Tianjin Metro) Line 1 of the Tianjin Metro () runs from the north-west to the south-east of downtown Tianjin. It is in length with 32 stations (currently 27 stations in operation). The line started operations on 12 June 2006. It was rebuilt from the original ...

Line 1 (Ürümqi Metro) Line 1 of the Ürümqi Metro is a subway line in Ürümqi Ürümqi ( ; also spelled Ürümchi or without umlauts), formerly known as Dihua (also spelled Tihwa), is the capital of the Xinjiang Uyghur Autonomous Region in the far north ...

Line 1 (Wuhan Metro) The Line 1 of Wuhan Metro () is an elevated metro line in the city of Wuhan, Hubei. It is the longest continuous metro viaduct in the world. Line 1 opened on 28 July 2004, making Wuhan the fifth city in mainland China to have a metro system aft ...

Line 1 (Wuhu Rail Transit) Line 1 of Wuhu Rail Transit Wuhu Rail Transit is a two-line monorail rapid transit system in Wuhu, Anhui, China. Both lines use Bombardier Innovia Monorail 300 trains manufactured under a joint venture with CRRC CRRC Corporation Limited (k ...

Line 1 (Wuxi Metro) Line 1 of the Wuxi Metro () is a rapid transit line running from north to south Wuxi Wuxi (, ) is a city in southern Jiangsu province, eastern China, by car to the northwest of downtown Shanghai, between Changzhou and Suzhou. In 2017 it h ...

Line 1 (Xi'an Metro) Line 1 of the Xi'an Metro () is a rapid transit line running from west to east Xi'an. It was opened on 15 September 2013. Currently, this line measured long with 23 stations. The line is colored blue on system maps. Future Development Phase 3 of ...

* Line 1 (Xiamen Metro) *

Line 1 (Xuzhou Metro) Line 1 of the Xuzhou Metro () is a rapid transit line in Xuzhou city, Jiangsu Jiangsu (; ; pinyin: Jiāngsū, alternatively romanized as Kiangsu or Chiangsu) is an eastern coastal province of the People's Republic of China. It is one of ...

Line 1 (Zhengzhou Metro) Line 1 of the Zhengzhou Metro () is a rapid transit line running from west to east Zhengzhou Zhengzhou (; ), also spelt Zheng Zhou and alternatively romanized as Chengchow, is the capital and largest city of Henan Province in the central par ...

India

* Line 1 (Chennai Metro) or Blue Line *

Line 1 (Delhi Metro) The Red Line (Line 1) is a metro rail line of the Delhi Metro, a rapid transit system in Delhi, India. It is an entirely elevated line and has 29 stations that runs from Rithala to Shaheed Sthal with a total distance of 34.55 km. The Ti ...

or Red Line *

Line 1 (Lucknow Metro) The Red Line (Line 1) ( hi, रेड लाइन) of the Lucknow Metro is a metro route of mass rapid transit system in Lucknow. It consists of 21 metro stations from Chaudhary Charan Singh International Airport, CCS International Airport to ...

or Red Line * Line 1 (Mumbai Metro) *

Line 1 (Mumbai Monorail) Line 1 of the Mumbai Monorail is, as of 2018, the only current line in the monorail system for the city of Mumbai, India. It is also referred to as ''Jacob Circle-Wadala-Chembur line/corridor''. Built at a cost of approximately , the line is f ...

Line 1 (Nagpur Metro) The Orange Line, also known as the North–south corridor, of the Nagpur Metro is a metro route of mass rapid transit system in Nagpur, India. It consists of 20 metro stations from Automotive Square to Metro City with a total distance of 22.293& ...

or Orange Line *

Line 1 (Navi Mumbai Metro) Line 1 of the Navi Mumbai Metro is part of the rapid transit rail system for the city of Navi Mumbai, India. The 23.40 km line consists of 20 metro stations from Belapur to Khandeshwar. It is expected to cost . On 7 May 2021, State-run town ...

* Line 1 (Pune Metro) or Purple Line *

Kolkata Metro Line 1 The Line 1, Blue Line, also known as North–South Metro of the Kolkata Metro, is a rapid transit system serving South 24 Parganas, Kolkata and North 24 Parganas in Indian state of West Bengal. It consists of 26 operational stations from Dakshi ...

Japan

Line 1 (Hiroshima Rapid Transit) , also known as the , is a rubber-tired transit system operated by Hiroshima Rapid Transit in Hiroshima, Japan. Astram opened on August 20, 1994, for the 1994 Asian Games in Hiroshima. The line connects central Hiroshima and Hiroshima Big Arch, ...

or Astram Line * Line 1 (Nagoya Municipal Subway) or Higashiyama Line *

Line 1 (Osaka Metro) Line 1 or 1 line may refer to: Public transport Africa * Line 1 (Algiers Metro), Algeria * Cairo Metro Line 1, Egypt Asia China * Line 1 (Beijing Subway) * Line 1 (Changchun Rail Transit) * Line 1 (Changsha Metro) * Line 1 (Changzhou Metro) * L ...

or Midōsuji Line *

Kūkō Line (Fukuoka City Subway) The is a subway line, part of the Fukuoka City Subway system in Fukuoka, Japan. It connects Meinohama, Nishi Ward to Fukuokakūkō (Fukuoka Airport), Hakata Ward, all within Fukuoka. The line's color on maps is orange. Officially, the lin ...

* Toei Asakusa Line, Tokyo

South Korea

Busan Metro Line 1 Busan Metro Line 1 is the north-south route of the Busan Metro The Busan Metro () is the urban rail system operated by the Busan Transportation Corporation of Busan, South Korea. The metro network first opened in 1985 with seventeen statio ...

Daegu Metro Line 1 Daegu Metro Line 1 was, until mid-2005, the only rapid transit line in the South Korean city of Daegu. It is operated by the Daegu Metropolitan Transit Corporation. The line color is carmine. The line first began running from Jincheon to Jungan ...

Daejeon Metro Line 1 Daejeon Subway Line 1 is a subway line is located in Daejeon, South Korea. After excluding the Seoul metropolitan area, it was the fourth subway line created in Korea, following Busan, Daegu, and Gwangju. Its line color is green. It is long with ...

Gwangju Metro Line 1 Gwangju Metro Line 1 is a rapid transit line in Gwangju, South Korea, operated by the Gwangju Metropolitan Rapid Transit Corporation (GRTC, or Gwangju Metro). It connects Nokdong station in Dong-gu at its eastern terminus to Pyeongdong stat ...

Incheon Subway Line 1 Incheon Subway Line 1 is a north-south subway line, part of the Incheon Subway system. The line is also included as a part of the overall Seoul Metropolitan Subway network; Bupyeong Station has a free transfer with Seoul Subway Line 1, Gyeyang ...

Seoul Subway Line 1 Seoul Metropolitan Subway Line 1 of the Seoul Metropolitan Subway is a rapid transit and commuter rail line which links central Seoul, South Korea to Soyosan Station in the northeast, Incheon in the southwest, and Sinchang (Soonchunhyang Univ.) ...

Other places in Asia

* Line 1 (Yerevan Metro), Armenia *

Line 01 (Phnom Penh Bus Rapid Transit) Line 01 (ខ្សែទី១) is a route of the Phnom Penh City Bus network in Phnom Penh, Cambodia. The line is represented on the official Phnom Penh City Bus map in Green. Stations See also * Phnom Penh City Bus *Transport in Phnom Penh ...

, Cambodia *

Tehran Metro Line 1 Tehran Metro Line 1, coloured red on system maps runs north-south and is of which is underground (from Tajrish station to Shush Station) and the rest ''at grade'' (at surface level). The number of stations along this line is 29 of which 22 st ...

, Iran *

Line 1 (Almaty Metro) The First Line ( kk, Бірінші бағыт, ''Birinshi baǵyt''; ) is the first line opened of the Almaty Metro in Almaty, Kazakhstan. The first stretch with seven stations, between Raiymbek batyr (Almaty Metro), Raiymbek batyr and Alatau (Alma ...

, Kazakhstan * Seremban Line, Malaysia * LRT Line 1 (Metro Manila), Philippines * Line 1 (Doha Metro) or Red Line, Qatar *

Line 1 (Singapore) Line 1 or 1 line may refer to: Public transport Africa * Line 1 (Algiers Metro), Algeria * Cairo Metro Line 1, Egypt Asia China * Line 1 (Beijing Subway) * Line 1 (Changchun Rail Transit) * Line 1 (Changsha Metro) * Line 1 (Changzhou Metro) * ...

, a service of the East West MRT Line *

Wenhu Line The Wenhu or Brown line (code BR) is a metro line in Taipei operated by Taipei Metro, named after the districts it connects: Wenshan and Neihu. It is an automated medium-capacity rubber-tyred metro line and is long, serving a total of 24 st ...

, Taipei, Taiwan

Australia

* Line 1 (Sydney Light rail network) or Inner West Light Rail, New South Wales * Line 1 (Sydney Trains) or North Shore & Western Line, New South Wales

Europe

France

* Île-de-France tramway Line 1, Paris * Paris Métro Line 1

Germany

U1 (Berlin U-Bahn) U1 is a line on the Berlin U-Bahn, which is long and has 13 stations. Its traditional line designation was BII. It runs east–west and its eastern terminus is Warschauer Straße S-Bahn station where it connects to the Schlesische Bahn. Fr ...

* U1 (Frankfurt U-Bahn) *

U1 (Hamburg U-Bahn) The U1 is a line of the Hamburg U-Bahn which has a length of . It starts in Norderstedt Mitte and leads via the city center at Jungfernstieg and Hauptbahnhof Süd to Volksdorf where it divides in two branches, leading to Ohlstedt and Gro ...

* U1 (Munich U-Bahn) * U1 (Nuremberg U-Bahn)

Greece

* Line 1 (Athens Metro) *

Line 1 (Thessaloniki Metro) Line 1 of the Thessaloniki Metro, also known as the Base Project ( el, Βασικό Έργο), is a deep-level underground rapid transit line in Thessaloniki, Greece, connecting in the west with in the east, before continuing on to the . The li ...

Italy

* Line 1 (Naples Metro) * Milan Metro Line 1

Russia

* Line 1 (Moscow Metro) or Sokolnicheskaya line *

Line 1 (Nizhny Novgorod Metro) Avtozavodskaya Line () is a line of the Nizhny Novgorod Metro The Nizhny Novgorod Metro (russian: Нижегородское метро), formerly known as the Gorky Metro (russian: Горьковское метро), is a rapid-transit sys ...

Line 1 (Saint Petersburg Metro) Line 1 of the Saint Petersburg Metro, also known as ''Kirovsko-Vyborgskaya Line'' (russian: Ки́ровско-Вы́боргская ли́ния) or ''Red Line'', is the oldest rapid transit line in Saint Petersburg, Russia, opened in 1955, wh ...

Spain

* Line 1 (Bilbao metro) *

Line 1 (Granada Metro) Line 1 of the Granada metro is a light rail line running from Albolote in the north to Armilla, Granada, Armilla in the south, via Maracena and the center of Granada city. Today it has 26 stations and spans 15.920 km from end to end. In 2019 it ...

Line 1 (Madrid Metro) Line 1 of the Madrid Metro is an underground metro line running from Pinar de Chamartín in the north to Valdecarros in the southeast, via Sol. Today it has 33 stations and spans from end to end. The line was the first metro line of the M ...

* Line 1 (Madrid Light Metro) *

Line 1 (Metrovalencia) Line 1 is the oldest rail service in Metrovalencia, in Valencia, Spain. The line opened in 1988 and has 40 stations with a total track length of . This makes Line 1 the longest line of the Metrovalencia, almost two times longer than Line 2 (Metrov ...

* Barcelona Metro line 1 *

Seville Metro line 1 Seville (; es, Sevilla, ) is the capital and largest city of the Spanish autonomous community of Andalusia and the province of Seville. It is situated on the lower reaches of the River Guadalquivir, in the southwest of the Iberian Peninsula. ...

Ukraine

* Line 1 (Kharkiv Metro), Ukraine *

Line 1 (Kyiv Metro) Line 1 or 1 line may refer to: Public transport Africa * Line 1 (Algiers Metro), Algeria * Cairo Metro Line 1, Egypt Asia China * Line 1 (Beijing Subway) * Line 1 (Changchun Rail Transit) * Line 1 (Changsha Metro) * Line 1 (Changzhou Metro) ...

or Sviatoshynsko–Brovarska line

Other places in Europe

* U1 (Vienna U-Bahn), Austria * Line 1 (Minsk Metro) or Maskoŭskaja line, Belarus * Brussels Metro line 1, Belgium *

M1 (Copenhagen Metro) M1 of the Copenhagen Metro, colored green on the map, runs from Vanløse to Vestamager. It connects the Ørestad neighborhood of Copenhagen, Denmark, to the city center. The line is elevated while traveling through Ørestad, while it runs in a tun ...

, Denmark * Metro Line M1 (Budapest Metro), Hungary *

M1 (Warsaw) Line M1 is the first line of the Warsaw Metro. It is 23.1 km long, has 21 stations and runs from the Kabaty estate in the Ursynów district to the Młociny district in Bielany. The decision to build it was made in 1982, and a year later the first ...

, Poland * Bucharest Metro Line M1, Romania

North America

Canada

Line 1 (O-Train) The Confederation Line (french: Ligne de la Confédération), also called O-Train Line 1 (french: Ligne 1 de l'O-Train), is a light rail line operated by OC Transpo in Ottawa, Ontario, Canada, as part of the city's O-Train light rail system. I ...

or Confederation Line, Ottawa, Ontario * Line 1 Yonge–University, Toronto, Ontario *

Green Line (Montreal Metro) The Green Line (french: Ligne verte), also known as Line 1, is one of the four lines of the Montreal Metro in Montreal, Quebec, Canada. The line runs through the commercial section of downtown Montreal underneath Boulevard de Maisonneuve, forme ...

, formerly Line 1, Quebec

Mexico

Metrorrey Line 1 Line 1 is a line on the Metrorrey Metrorrey, officially Sistema de Transporte Colectivo Metrorrey, is a light metro/rapid transit system in Monterrey, Nuevo León, Mexico. Operations began in 1991. , the system operates 50 high-floor electric t ...

, Monterrey *

Mexico City Metro Line 1 Mexico City Metro Line 1 is one of the twelve metro lines operating in Mexico City, Mexico. Officially inaugurated in 1969, it went to become the first metro line to be built in the country. Its identifying color is pink and it runs through the c ...

* Mexico City Metrobús Line 1

United States

Tempo (bus rapid transit) Tempo is a bus rapid transit (BRT) service in Oakland and San Leandro in California. It is operated by AC Transit as Line 1T. The route has dedicated lanes and center-boarding stations along much of the corridor, prepaid fares, signal preempti ...

, Line 1T, Oakland, California * Route 1 (MTA Maryland) *

1 (New York City Subway service) The 1 Broadway–Seventh Avenue Local is a rapid transit service in the A Division of the New York City Subway. Its route emblem, or "bullet", is colored , since it uses the IRT Broadway–Seventh Avenue Line for its entire route. The 1 opera ...

, New York *

1 Line (Sound Transit) The 1Line, formerly Central Link, is a light rail line in Seattle, Washington, United States, and part of Sound Transit's Link light rail system. It serves 19 stations in the cities of Seattle, SeaTac, and Tukwila, traveling nearly between ...

, Seattle, Washington

Other places in North America

* Line 1 (Havana Suburban Railway), Cuba * Line 1 (Santo Domingo Metro), Dominican Republic *

Line 1 (Panama Metro) The Panama Metro ( es, Metro de Panamá) is a rapid transit system in Panama City, Panama. It links the south and the east of the metropolitan area to the city center. The metro was inaugurated on April 5, 2014, and it entered revenue service tw ...

South America

Brazil

Line 1 (Baixada Santista LRT) Line 1: Barreiros ↔ Porto is currently the only operational line of Baixada Santista Light Rail in São Paulo state SAO or Sao may refer to: Places * Sao civilisation, in Middle Africa from 6th century BC to 16th century AD * Sao, a town in ...

, São Paulo * Line 1 (Rio de Janeiro) *

Line 1 (Rio LRT) Line 1: Terminal Intermodal Gentileza ↔ Santos Dumont is one of the lines operated by VLT Carioca, being opened on 5 June 2016. It has a total of 16 stops in operation, all at-grade. Besides that, another one is in planning. The stops Praia Fo ...

Line 1 (São Paulo Metro) Line 1 (Blue) ( pt, Linha 1–Azul) is one of the six lines that make up the São Paulo Metro and one of the thirteen lines that make up the Metropolitan Rail Transportation Network. It was the first line built for the São Paulo Metro and also ...

Other places in South America

* Santiago Metro Line 1, Chile *

Line 1 (Metrovía) Lane 1 of Metrovia (''Guasmo - Rio Daule''), Opened to the public on July 30 of 2006, it is the first Line of a total of 7 to operate in Metrovia, Metrovia's BRT System. Stations South to North Currently in Service: *Terminal de Integración El Gu ...

, Guayaquil, Ecuador *

Line 1 (Lima Metro) The Lima and Callao Metro ( es, Metro de Lima y Callao) is a rapid transit system that serves the cities of Lima and Callao, which make up the Lima metropolitan area. The existing metro lines (1 and 2) currently link the district of Villa El S ...

, Peru

Other uses

* A "one-line whip", an application of a

Whip A whip is a tool or weapon designed to strike humans or other animals to exert control through pain compliance or fear of pain. They can also be used without inflicting pain, for audiovisual cues, such as in equestrianism. They are generally e ...

in politics * LINE 1 (a.k.a. L1), a non-LTR

retrotransposon Retrotransposons (also called Class I transposable elements or transposons via RNA intermediates) are a type of genetic component that copy and paste themselves into different genomic locations (transposon) by converting RNA back into DNA through ...

and the only Long INterspersed Element (LINE) active in the human genome