Mainline, ''Main line'', or ''Main Line'' may refer to:

Transportation

Railway

Main line (railway) The main line, or mainline in American English, of a railway is a track that is used for through trains or is the principal artery of the system from which branch lines, yards, sidings and spurs are connected. It generally refers to a route be ...

, the principal artery of a railway system * Main line railway preservation, the practice of operating preserved trains on an operational railway network

Asia

;India *

Ahmedabad–Mumbai main line The Ahmedabad–Mumbai main line or the Mumbai–Ahmedabad main line is a railway route on the Western Railway section of Indian Railways. It is one of the busiest railway routes of the Indian Railways and is fully electrified. The Western l ...

* Chennai Central–Mysuru main line *

Gandhidham–Ahmedabad main line The Gandhidham–Ahmedabad main line belongs to Western Railway of Ahmedabad Division in Gujarat State. Geography Gandhidham–Ahmedabad main line passes through beautiful Creeks and Salt dunes of Kutch. The railway line is about 300 km in ...

* Howrah–Bardhaman main line *

Howrah–Chennai main line The Howrah–Chennai main line is a railway line connecting Chennai and Kolkata cutting across Eastern Coastal Plains of India. It covers a distance of across, West Bengal, Odisha, Andhra Pradesh and Tamil Nadu. Sections The long trunk line ...

, between Chennai and Kolkata *

Howrah–Delhi main line The Howrah–Delhi main line is a railway line connecting Delhi and Kolkata cutting across northern India. The railway line was opened to traffic in 1866 with the introduction of the "1 Down/2 Up Mail" train. Sections The long trunk line, ha ...

New Delhi–Chennai main line The New Delhi–Chennai main line is a railway line connecting Chennai and Delhi cutting across southern part of the Eastern Coastal Plains of India, the Eastern Ghats, the Deccan Plateau and the Yamuna valley. It covers a distance of across ...

;Japan *

Arashiyama Main Line is a railroad company based in Kyoto Prefecture, Japan (but with offices in Fukui Prefecture) in operation since March 2, 1942. It is a parent company of Keifuku Bus and Kyoto Bus, and an affiliated company of Keihan Electric Railway, which o ...

Chichibu Main Line The is a railway line in Japan, owned by the private railway operator Chichibu Railway, linking and , both in Saitama Prefecture. Stations ;Legend * ● - All trains stop * ○ - Some trains stop * ▲ - Some trains pass * ▼ - Trains ...

Chikuhō Main Line The is a railway line in Fukuoka Prefecture, Japan, operated by Kyushu Railway Company (JR Kyushu). It connects Wakamatsu Station in Kitakyushu with Haruda Station in Chikushino. Between Orio Station and Haruda Station, as well as from Keisen S ...

Chūō Main Line The , commonly called the Chūō Line, is one of the major trunk railway lines in Japan. It connects Tokyo and Nagoya, although it is the slowest direct railway connection between the two cities; the coastal Tōkaidō Main Line is slightly faste ...

* Eiden Eizan Main Line *

Fukushima Rinkai Railway Main Line The is a Japanese freight-only railway line from Izumi, serving Onahama Freight Terminal, all in Iwaki, Fukushima. It is the only railway line operated by the , excluding a few more industrial railway lines. The third sector company had its roo ...

Hakodate Main Line The is a railway line connecting the cities of Hakodate and Asahikawa via Sapporo in Hokkaido, Japan. It is one of the trunk lines operated by the Hokkaido Railway Company (JR Hokkaido). The Sawara Line, a 35 km loop line from Ōnuma to Mo ...

Hankyū Kōbe Main Line The of Hankyu Railway is one of the three major commuter heavy rail lines in the Keihanshin conurbation of Japan. It links the urban centres of Osaka and Kobe by connecting the major stations of Umeda in Osaka and Sannomiya in Kobe. The Hanshin ...

Hankyu Kyoto Main Line The is a railway line in Japan operated by the private railway operator Hankyu Railway. It connects Osaka-umeda Station in Osaka and Kyoto-kawaramachi Station in Kyoto. Definition The Kyoto Main Line is often called the for short, and in a broa ...

Hankyu Takarazuka Main Line The is a Japanese railway line operated by the private railway operator Hankyu Railway. It connects Umeda Station in downtown Osaka with Takarazuka Station in Takarazuka, Hyogo. It has a branch line, the Minoo Line, and the Nose Electric Rai ...

Hanshin Main Line {{BS-map , title=Route map , title-bg=orangered , title-color=white , collapsible=yes , collapse=yes , map= {{BS, , , Lines are of Hanshin unless noted, } {{BS5, , hBHF, , , tBHF, , , {{STN, Osaka/{{STN, Kitashinchi} {{BS5, , hSTR, exKBHFa, tKACC ...

Hidaka Main Line The is a railway line in Hokkaido, Japan, operated by Hokkaido Railway Company (JR Hokkaido), between Tomakomai Station in Tomakomai and Samani Station in Samani, running along the coast of Hidaka Subprefecture. Services on the 116.0 km ...

Hiroden Main Line The is a streetcar line of Hiroshima Electric Railway (Hiroden) in Hiroshima, Japan. The line has been operated since 1912. The total distance of the line is . Routes 1, 2, 3, 5, 6, 7 and 8 operate on the line. The line has 20 stations, nu ...

Hōhi Main Line The is a railway line in Kyushu, southern Japan, operated by the Kyushu Railway Company (JR Kyushu). It connects the west and east coasts of the island. The line originates at Kumamoto Station in Kumamoto and ends at terminal of Ōita Station ...

Hokuriku Main Line The Hokuriku Main Line ( ja, 北陸本線, ) is a 176.6 kilometer railway line owned by the West Japan Railway Company (JR West) connecting the Maibara Station in Maibara, Shiga, with the Naoetsu Station in Joetsu, Niigata. The section betwee ...

Kagoshima Main Line The is a major railway line operated by the Kyushu Railway Company (JR Kyushu) between Mojikō in Kitakyushu, and Kagoshima Station in Kagoshima City, at the southern end of Kyushu. Until March 13, 2004, it extended 393 km between its two ...

Kansai Main Line The is a railway line in Japan, which connects Nagoya Station with JR Namba Station in Osaka. It is jointly run by the Central Japan Railway Company (JR Central) and West Japan Railway Company (JR West), with the boundary between both comp ...

Keihan Main Line The is a railway line in Japan operated by Keihan Electric Railway. The line runs between Sanjō Station in Kyoto and Yodoyabashi Station in Osaka. There are through services to the Keihan Ōtō Line and the Keihan Nakanoshima Line. Trains from ...

Keikyū Main Line The is a railway line in Japan, operated by the private railway operator Keikyu. The line connects the Tokyo wards of Minato, Shinagawa, Ōta, and the Kanagawa municipalities of Kawasaki, Yokohama and Yokosuka. The Keikyu Main Line began a ...

Keisei Main Line {{Infobox rail line , name = Keisei Main Line , native_name = 京成本線 , native_name_lang = ja , color = 005aaa , logo = {{KSLS, KS, 50 , logo_width = , image = Keisei-Series3000-3042.jpg , image_width = 3 ...

Kisei Main Line The is a railway line that parallels the coastline of the Kii Peninsula in Japan between Mie Prefecture and Wakayama Prefecture. The name takes the ''kanji'' characters from the names of the old provinces of and . The line is operated by Ce ...

Kyūdai Main Line The is a railway line in Kyushu, Japan, operated by the Kyushu Railway Company (JR Kyushu). It connects Kurume Station, Kurume in Fukuoka Prefecture and Ōita Station, Ōita in Ōita Prefecture. It is also known as the Yufu Kōgen Line. The ...

Meitetsu Nagoya Main Line {{BS-map , title=Nagoya Main Line , title-bg=red , top= *Subway: Nagoya Municipal Subway *Lines are Meitetsu unless otherwise noted , collapse=yes , map= {{BS, STR, , , Tokaido Main Line} {{BS3, , STR, hSTR, , , Tokaido Shinkansen} {{BS5, ...

Mizushima Main Line is a 11.2 km railway line owned by the Mizushima Rinkai Railway, serving Kurashiki, Okayama Prefecture, Japan. The line branches southward from the San'yō Main Line, owned by JR West, at Kurashiki-shi Station, ending in the industrial district ...

Muroran Main Line The is a railway line in Hokkaido operated by Hokkaido Railway Company (JR Hokkaido), between Oshamambe Station in Oshamambe and Iwamizawa Station in Iwamizawa, approximately paralleling the coast of Iburi Subprefecture. There also is a branch ...

Nagasaki Main Line The , or simply Nagasaki Line, is a railway line owned by the Kyushu Railway Company (JR Kyushu) connecting Tosu Station in Saga Prefecture to Nagasaki Station in Nagasaki Prefecture, Japan. There is a separate branch of this line from Kikitsu S ...

Nankai Main Line The is one of the two main railway lines of Japanese private railway company Nankai Electric Railway, together with Kōya Line. The route is from Namba Station in south downtown of Osaka to Wakayamashi Station in Wakayama via Sakai, Izumiōtsu ...

* Nayoro Main Line *

Nemuro Main Line is a railway line in Hokkaido operated by Hokkaido Railway Company (JR Hokkaido), connecting Takikawa Station in Takikawa and Nemuro Station in Nemuro, including Obihiro and Kushiro. Higashi-Nemuro is the most easterly situated station on the J ...

Nippō Main Line The is a railway line in Kyushu, in southern Japan, operated by Kyushu Railway Company (JR Kyushu). The line connects Kokura Station in Kitakyushu, Fukuoka, and Kagoshima Station in Kagoshima via the east coast of Kyushu, passing through the pr ...

Ohmi Railway Main Line The is a regional railway line in Shiga Prefecture operated by the private railway operator Ohmi Railway. It connects the cities of Maibara, Shiga, Maibara and Koka, Shiga, Koka. Its alignment is parallel with the Tōkaidō Shinkansen between Tak ...

Ōigawa Railway Ōigawa Main Line The is a Japanese railway line which connects Kanaya Station in Shimada, Shizuoka Prefecture with Senzu Station in Kawanehon, Haibara District, Shizuoka Prefecture. It is owned and operated by the private railway operator Ōigawa Railway. ...

Osaka Monorail Main Line is a monorail route of the Osaka Monorail The is a monorail system in northern Osaka Prefecture, Japan, operated by . At long, it is the second longest monorail system in the world after the Chongqing Monorail and the longest monorail sy ...

Ōu Main Line The is a railway line in Japan, operated by the East Japan Railway Company (JR East). It connects Fukushima Station through Akita Station to Aomori Station. Since the opening of the Yamagata Shinkansen on July 1, 1992, the Fukushima–Yamag ...

Rumoi Main Line The is a Japanese railway line in Hokkaido operated by Hokkaido Railway Company (JR Hokkaido) which connects Fukagawa Station in Fukagawa and Rumoi Station in Rumoi. Until the section of the Hidaka Main Line from to was closed on 1 Apri ...

San'in Main Line The is a railway line in western Japan, which connects Kyoto and Shimonoseki, Yamaguchi, operated by West Japan Railway Company (JR West). It is the major railway line of the San'in region, approximately paralleling the Japan Sea, crossing Kyot ...

Sanyo Electric Railway Main Line The is a railway line in Japan operated by the private railway operator Sanyo Electric Railway. It stretches from Kobe west to Himeji via Akashi, Kakogawa and other municipalities in Hyōgo Prefecture. The line runs parallel to West Japan Railwa ...

San'yō Main Line The is a major railway line owned by JR Group companies in western Japan, connecting Kōbe Station and Moji Station, largely paralleling the coast of the Seto Inland Sea, Inland Sea, in other words, the southern coast of western Honshu. The Sa ...

Sekihoku Main Line is a railway line in Hokkaido, Japan, operated by Hokkaido Railway Company (JR Hokkaido) between in Asahikawa and Abashiri Station in Abashiri. The name comes from the first Kanji characters of and , names of ancient provinces along the lin ...

* Senmō Main Line *

Shin'etsu Main Line The Shinetsu Main Line ( ja, 信越本線, ) is a railway line, consisting of three geographically separated sections, operated by the East Japan Railway Company (JR East) in Japan. It was originally one continuous line connecting and via . S ...

Sōbu Main Line The is a Japanese railway line operated by the East Japan Railway Company (JR East) in Japan. It connects Tokyo with the east coast of Chiba Prefecture, passing through the cities of Funabashi, Chiba, and Chōshi. Its name derives from the old ...

Sōtetsu Main Line The is a railway line in Kanagawa Prefecture, Japan, operated by the private railway operator Sagami Railway (Sotetsu). It connects and . Services Services on the Main Line are divided into four categories. Some trains travel along the Izu ...

Sōya Main Line The is a Japanese railway line operated by Hokkaido Railway Company (JR Hokkaido) in Hokkaido. The line connects Asahikawa Station in Asahikawa and Wakkanai Station in Wakkanai, and is the northernmost railway line in Japan. The name comes fr ...

Takayama Main Line The is a Japanese railway line between Gifu Station in Gifu and Toyama Station in Toyama, operated by Central Japan Railway Company (JR Central) and West Japan Railway Company (JR West). The line directly links the Chūkyō Metropolitan Area (m ...

Tōhoku Main Line The Tōhoku Main Line ( ja, 東北本線, ) is a long railway line in Japan operated by the East Japan Railway Company (JR East). The line starts from Tokyo Station in Chiyoda, Tokyo and passes through such cities as Saitama, Utsunomiya, Fukush ...

Tōkaidō Main Line The is a major Japanese railway line of the Japan Railways Group (JR Group) network, connecting and stations. It is long, not counting its many freight feeder lines around the major cities. The high-speed Tōkaidō Shinkansen largely parallel ...

Toyama Chihō Railway Main Line The is a Japanese railway line that connects Dentetsu-Toyama Station in Toyama, Toyama with Unazuki Onsen Station in Kurobe, Toyama. It is owned and run by Toyama Chihō Railway. Station list History The first section of what is now this lin ...

Toyohashi Railroad Azumada Main Line Azumada Main Line is a tram line in Toyohashi, Aichi Prefecture, Japan operated by Toyohashi Railroad. It connects Ekimae (situated in front of the JR and Meitetsu Toyohashi Station) to Akaiwaguchi and Ihara (one stop from Akaiwaguchi) to Undo ...

Uetsu Main Line The is a railway line in the Tohoku and Chubu regions of Japan. Part of the East Japan Railway Company (JR East) system, it connects Niitsu Station in the city of Niigata and Akita Station in Akita. The name "Uetsu" refers to the ancient pro ...

;Korea *

Trans-Korean Main Line The Trans-Korean Main Line is a project to build railway infrastructure in North Korea, and allow rail freight to travel between South Korea and Russia; it is hoped to halve the time taken to transport freight from eastern Asia to Europe and ear ...

;Pakistan *

Karachi–Peshawar Line Karachi–Peshawar Railway Line () (also referred to as Main Line 1 or ML-1) is one of four main railway lines in Pakistan, operated and maintained by Pakistan Railways. The line begins from Karachi City railway station, Karachi City station or K ...

, also referred to as Main Line 1 ;Philippines *

PNR North Main Line The PNR North Main Line ( fil, Pangunahing Linyang Pahilaga ng PNR, simply known as PNR North or Northrail) is one of the two trunk lines of the Philippine National Railways in the island of Luzon, the other being the PNR South Main Line. The ...

PNR South Main Line The PNR South Main Line ( fil, Pangunahing Linyang Patimog ng PNR, also known as Southrail and formerly the Main Line South) is one of the two trunk lines that form the Philippine National Railways' network in the island of Luzon, Philippines ...

;Sri Lanka *

Main Line (Sri Lanka) The Main Line is a major railway line in the rail network of Sri Lanka and considered by many to be one of the most scenic train journeys in all of Asia. The line begins at Colombo Fort and winds through the Sri Lankan hill country to reach B ...

;Thailand *

Chiang Mai Main Line Chiang Mai Main Line is a main line of the Northern Line operated by State Railway of Thailand that connects between Hua Lamphong railway station in the central and Chiang Mai railway station in the north, passing through many provinces. It is ...

, between Bangkok and Chiang Mai *

Ubon Ratchathani Main Line Ubon Ratchathani Main Line or Lower Isan Line is a railway line in Thailand. It runs from Ban Phachi Junction in the central to Ubon Ratchathani railway station in the lower northeastern, passes many provinces. History Timeline Name changes ...

, between Ban Phachi Junction and Ubon Ratchathani ;Turkey * Adana – Mersin Main Line

Europe

* Main Line for Europe ;Finland *

Finnish Main Line ; sv, Stambanan , native_name_lang = , color = , logo = , logo_width = , logo_alt = , image = Päärata, Oulunkylä.JPG , image_width = 200px , image_alt = , caption ...

, between Helsinki and Oulu ;Germany *

Baden main line The Baden main line (german: Badische Hauptbahn) is a German railway line that was built between 1840 and 1863. It runs through Baden, from Mannheim via Heidelberg, Karlsruhe, Offenburg, Freiburg, Basle, Waldshut, Schaffhausen and Singen to Cons ...

, between Baden and Constance ;Sweden * Northern Main Line, between Gävle or Storvik and Ånge *

Southern Main Line The Southern Main Line ( sv, Södra stambanan) is a long standard gauge electrified railway between Malmö and Katrineholm in Sweden. The trains continue further on to Stockholm Central Station along the Western Main Line and terminate there (a ...

, between Malmö and Katrineholm *

Western Main Line The Western Main Line ( sv, Västra stambanan) is the main state-owned railway line between Stockholm and Gothenburg in Sweden. Its construction began in 1856 and it opened for service in 1862.Brighton Main Line The Brighton Main Line (also known as the South Central Main Line) is a major railway line in the United Kingdom that links Brighton, on the south coast of England, with central London. In London the line has two branches, out of and station ...

Caledonian main line The Caledonian Railway main line in Scotland connected Glasgow and Edinburgh with Carlisle, via Carstairs and Beattock. It was opened in 1847 by the Caledonian Railway. The approach to Glasgow used railways already built, primarily for minera ...

Chatham Main Line The Chatham Main Line is a railway line in England that links London VictoriaQuail Map 5 – England South ages 2–13Sept 2002 (Retrieved 14 December 2011) and Dover Priory / Ramsgate, travelling via Medway (of which the town of Chatham is ...

Chiltern Main Line The Chiltern Main Line is a railway line which links London () and Birmingham ( Moor Street and Snow Hill), the United Kingdom's two largest cities, by a route via High Wycombe, Bicester, Banbury, Leamington Spa and Solihull. It is one of tw ...

Cornish Main Line The Cornish Main Line ( kw, Penn-hyns-horn Kernow) is a railway line in Cornwall and Devon in the United Kingdom. It runs from Penzance to Plymouth, crossing from Cornwall into Devon over the famous Royal Albert Bridge at Saltash. It directly ...

East Coast Main Line The East Coast Main Line (ECML) is a electrified railway between London and Edinburgh via Peterborough, Doncaster, York, Darlington, Durham and Newcastle. The line is a key transport artery on the eastern side of Great Britain running broa ...

Great Central Main Line The Great Central Main Line (GCML), also known as the London Extension of the Manchester, Sheffield and Lincolnshire Railway (MS&LR), is a former railway line in the United Kingdom. The line was opened in 1899 and built by the Great Central Railw ...

Great Eastern Main Line The Great Eastern Main Line (GEML, sometimes referred to as the East Anglia Main Line) is a major railway line on the British railway system which connects Liverpool Street station in central London with destinations in east London and t ...

Great Western Main Line The Great Western Main Line (GWML) is a main line railway in England that runs westwards from London Paddington to . It connects to other main lines such as those from Reading to Penzance and Swindon to Swansea. Opened in 1841, it was the or ...

Highland Main Line The Highland Main Line is a railway line in Scotland. It is long and runs through the Scottish Highlands linking a series of small towns and villages with Perth at one end and Inverness at the other. Today, services between Inverness and Edi ...

Main Line Preservation Group The Main Line Preservation Group was an organisation formed in 1968, "to acquire a suitable length of main line, for the operation of steam hauled passenger trains, at realistic speeds". The organisation's contemporary literature and advertising cl ...

, an organisation that eventually became the Great Central Railway heritage railway *

Mainline Freight Mainline Freight was a trainload rail freight operator based in Islington, London, England with operations extending to Yorkshire in the north and Somerset in the west. It was formed from part of British Rail's Trainload Freight division as pa ...

, a defunct UK railfreight company *

Midland Main Line The Midland Main Line is a major railway line in England from London to Nottingham and Sheffield in the Midlands. It comprises the lines from London's St Pancras station via Leicester, Derby/Nottingham and Chesterfield in the East Midlands. ...

Midland Mainline Midland Mainline was a train operating company in the United Kingdom owned by National Express that operated the Midland Main Line franchise from April 1996 until November 2007. Midland Mainline ran fast and semi-fast passenger services fro ...

, a defunct UK train-operating company *

North British Railway Main Line The North British Railway was a British railway company, based in Edinburgh, Scotland. It was established in 1844, with the intention of linking with English railways at Berwick. The line opened in 1846, and from the outset the company follow ...

Penrhyn Main Line class The Penrhyn Main Line class was a class of three narrow gauge steam locomotives built for the Penrhyn Quarry Railway (PQR). These locomotives were built by the Hunslet Engine Company between 1882 and 1893 and supplied specifically to work the ra ...

, three narrow-gauge steam locomotives built for the Penrhyn Quarry Railway *

South Eastern Main Line The South Eastern Main Line is a major long-distance railway route in South East England, UK, one of the three main routes crossing the county of Kent, going via Sevenoaks, Tonbridge, Ashford and Folkestone to Dover. The other routes are the C ...

South Humberside Main Line The South Humberside Main Line runs from Doncaster on the East Coast Main Line to Thorne where it diverges from the Sheffield to Hull Line. It then runs eastwards to Scunthorpe and the Humber ports of Immingham and Grimsby, with the coastal res ...

, between Doncaster and Cleethorpes *

South Wales Main Line The South Wales Main Line ( cy, Prif Linell De Cymru), originally known as the London, Bristol and South Wales Direct Railway or simply as the Bristol and South Wales Direct Railway, is a branch of the Great Western Main Line in Great Britain. ...

South West Main Line The South West Main Line (SWML) is a 143-mile (230 km) major railway line between Waterloo station in central London and Weymouth on the south coast of England. A predominantly passenger line, it serves many commuter areas including south we ...

West Anglia Main Line The West Anglia Main Line is one of the two main lines that operate out of , the other being the Great Eastern Main Line, which operates services to Ipswich and Norwich via Colchester. It runs generally north through Cheshunt, Broxbourne, Har ...

West Coast Main Line The West Coast Main Line (WCML) is one of the most important railway corridors in the United Kingdom, connecting the major cities of London and Glasgow with branches to Birmingham, Liverpool, Manchester and Edinburgh. It is one of the busiest ...

Wessex Main Line The Wessex Main Line is the railway line from Bristol Temple Meads to Southampton Central. Diverging from this route is the Heart of Wessex Line from Westbury to Weymouth. The Wessex Main Line intersects the Reading to Taunton Line at and th ...

North America

;United States *

Cape Main Line The Cape Cod Railroad (also currently referred to as the Cape Main Line) is a railroad in southeastern Massachusetts, running from Pilgrim Junction in Middleborough, Massachusetts, Middleborough across the Cape Cod Canal Railroad Bridge, where it ...

, in Cape Cod, Massachusett *

IRT Manhattan Main Line The first regularly operated subway in New York City was opened on October 27, 1904, and was operated by the Interborough Rapid Transit Company (IRT). The early IRT system consisted of a single trunk line below 96th Street in Manhattan, running ...

, in New York City *

Main Line (Atlantic Coast Line Railroad) The Atlantic Coast Line Railroad’s Main Line was the backbone of the Atlantic Coast Line Railroad's network in the southeastern United States. The main line ran from Richmond, Virginia to Port Tampa just southwest of Tampa, Florida, a distance ...

Main Line (Columbus to Chicago) The Columbus to Chicago Main Line was a rail line owned and operated by the Pennsylvania Railroad in the U.S. states of Ohio, Indiana, and Illinois. The line ran from Columbus, Ohio northwest via Logansport, Indiana to Chicago, Illinois. Junctions ...

, a Pennsylvania Railroad line in Ohio, Indiana, and Illinois *

Main Line (Columbus to Indianapolis via Bradford) The Columbus to Indianapolis via Bradford Main Line was a rail line owned and operated by the Pennsylvania Railroad in the U.S. state of Ohio. The line ran from Bradford on the Columbus to Chicago Main Line southwest to New Paris on the Pittsbu ...

, a Pennsylvania Railroad line in Ohio *

Main Line (Pennsylvania Railroad) The Main Line of the Pennsylvania Railroad was a rail line in Pennsylvania connecting Philadelphia with Pittsburgh via Harrisburg, Pennsylvania, Harrisburg. The rail line was split into two rail lines, and now all of its right-of-way is a cross- ...

, between Philadelphia and Pittsburgh, Pennsylvania *

Main Line (Long Island Rail Road) The Main Line is a rail line owned and operated by the Long Island Rail Road in the U.S. state of New York. It begins as a two-track line at the Long Island City station in Long Island City, Queens, and runs along the middle of Long Island abou ...

, between Long Island City and Greenport, New York * Main Line (New York to Hoffmans), a nickname for the CSX Hudson Subdivision *

Main Line (NJ Transit) The Main Line (or Erie Main Line) is a commuter rail line owned and operated by New Jersey Transit running from Suffern, New York to Hoboken, New Jersey, in the United States. It runs daily commuter service and was once the north–south main ...

, formerly part of the Erie Railroad, between Hoboken and Suffern, New Jersey *

Main Line (Pittsburgh to St. Louis) The Pittsburgh to St. Louis Main Line was a rail line owned and operated by the Pennsylvania Railroad in the U.S. states of Pennsylvania, Ohio, Indiana, and Illinois. The line ran from Pittsburgh, Pennsylvania west via Steubenville, Ohio, Columbus, ...

, a Pennsylvania Railroad line between Ohio and Illinois * Main Line of Mid-America, a nickname of the former Illinois Central Railroad *

Main Line Subdivision The Main Line Subdivision is a railroad line owned by CSX Transportation in the U.S. states of Kentucky and Tennessee. The line runs from Louisville, Kentucky, to Nashville, Tennessee, for a total of . At its north end the line continues south fro ...

, owned by CSX Transportation in Kentucky and Tennessee *

Main Street Line (MATA Trolley) The Main Street Line is a line of the Memphis Area Transit Authority trolley system. It began operations in 1993, becoming the first streetcar line to operate in Memphis since 1947. It runs for about along Main Street, with 14 stops in Downtown ...

, a streetcar line in Memphis, Tennessee *

Metropolitan main line The Metropolitan main line was a rapid transit line of the Chicago "L" system from 1895 to 1958. It ran west from downtown to a junction at Marshfield station. At this point the Garfield Park branch continued westward, while the Douglas Park bran ...

, a former rapid transit line in Chicago, Illinois *

North Side main line The North Side Main Line is a branch of the Chicago "L" system that is used by Red, Purple, and Brown Line trains. As of 2012, it is the network's busiest rail branch, serving an average of 123,229 passengers each weekday. The branch is long wi ...

, a rapid transit line in Chicago, Illinois *

Old Colony Main Line The Old Colony Lines are a pair of branches of the MBTA Commuter Rail system, connecting downtown Boston, Massachusetts with the South Shore and cranberry-farming country to the south and southeast. The two branches operate concurrently for vi ...

, between Boston, Massachusetts and the South Shore *

Old Main Line Subdivision The Old Main Line Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. state of Maryland. The line runs from Relay (outside Baltimore) west to Point of Rocks, and was once the main line of the Baltimore and Ohio Ra ...

, between Relay (outside Baltimore) and Point of Rocks, Maryland *

Park Avenue main line The Park Avenue main line, which consists of the Park Avenue Tunnel and the Park Avenue Viaduct, is a railroad line in the New York City borough of Manhattan, running entirely along Park Avenue. The line carries four tracks of the Metro-North R ...

Philadelphia Main Line The Philadelphia Main Line, known simply as the Main Line, is an informally delineated historical and social region of suburban Philadelphia, Pennsylvania. Lying along the former Pennsylvania Railroad's once prestigious Main Line, it runs no ...

Philadelphia to Harrisburg Main Line The Philadelphia to Harrisburg Main Line is a rail line owned and operated by Amtrak in the U.S. state of Pennsylvania. This is the only electrified Amtrak line in the United States outside of the main line of the Northeast Corridor. The line r ...

, part of the Pennsylvania Railroad Main Line now owned by Amtrak *

Philadelphia-to-Washington Main Line The Northeast Corridor (NEC) is an electrified railroad line in the Northeast megalopolis of the United States. Owned primarily by Amtrak, it runs from Boston through Providence, New Haven, Stamford, New York City, Philadelphia, Wilmington, a ...

SEPTA Main Line The SEPTA Main Line is the section of the SEPTA Regional Rail system from the Zoo Interlocking in West Philadelphia to Lansdale Station in Lansdale, Pennsylvania. The line is long, and serves all 13 SEPTA Regional Rail lines. Current service ...

, between West Philadelphia and Lansdale, Pennsylvania * South Side Main Line (Chicago Transit Authority), in Chicago, Illinois * Washington to Atlanta Main Line, owned by Norfolk Southern Railway

Oceania

;Australia *

Main Line railway, Queensland The Main Line is a railway line in South East Queensland, Australia. It was opened in a series of sections between 1865 and 1867. It commences at Roma St Station in Brisbane and extends west 161 km to Toowoomba. It is the first narrow gau ...

South Line, Tasmania The South Line, also known as the Main Line and sometimes the North/South Line or the North–South Line, is a freight rail corridor connecting Hobart to the northern ports of Tasmania. The Railway Line was built by the Tasmanian Main Line Compa ...

, Australia, also called the Main Line *

Tasmanian Main Line Company The Tasmanian Main Line Company (T.M.L.) was a privately owned railway company that existed in Tasmania from 1872 to 1890. The company were the first operators of rail services between Hobart and Launceston, where it connected with the Launces ...

, a privately-owned railway that existed from 1872 to 1890 ;New Zealand *

Canterbury Interior Main Line The Canterbury Interior Main Line was a proposed railway line that would have linked many of the branch lines in the Canterbury region of New Zealand's South Island. Although it was never built in full, its most northerly portion was constructed. ...

, a proposed railway on the South Island

Other transport

Mainline (aeronautics) A mainline flight is a flight operated by an airline's main operating unit, rather than by regional alliances, regional code-shares, regional subsidiaries, or wholly owned subsidiaries offering low-cost operations. Mainline carriers typically ...

, an airline carrier's non-regional service *

Main Line of Public Works The Main Line of Public Works was a package of legislation passed by the Commonwealth of Pennsylvania in 1826 to establish a means of transporting freight between Philadelphia and Pittsburgh. It funded the construction of various long-proposed can ...

, a package of legislation establishing freight transport between Philadelphia and Pittsburgh * A

toll road A toll road, also known as a turnpike or tollway, is a public or private road (almost always a controlled-access highway in the present day) for which a fee (or ''toll'') is assessed for passage. It is a form of road pricing typically implemented ...

system where all vehicles stop at various locations on the highway to pay a toll *

BCN Main Line The BCN Main Line, or Birmingham Canal Navigations Main Line is the evolving route of the Birmingham Canal between Birmingham and Wolverhampton in England. The name ''Main Line'' was used to distinguish the main Birmingham to Wolverhampton rout ...

(Birmingham Canal Navigations Main Line), a canal between Birmingham and Wolverhampton, England *

Ford Mainline The Ford Mainline is an automobile which was produced by Ford in the United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North Ameri ...

, a car model *

South Yorkshire Transport South Yorkshire Transport (SYT) was a bus operator that provided services around South Yorkshire and outlying areas. The company was formed as an 'arms-length' successor of the South Yorkshire Passenger Transport Executive (SYPTE) in 1986, whic ...

, a large bus operator in South Yorkshire, England which was renamed "Mainline" in 1993

Music

* McKenna Mendelson Mainline, a seminal Canadian blues band * "Mainline", a song by KISS on their 1974 album '' Hotter Than Hell'' * "Mainline", a 1979 disco song by Black Ivory * ''Mainline'', a 2014 album by Australian hip-hop collective One Day.

Businesses

Main Line Broadcasting Main Line Broadcasting was an American media company, based in Philadelphia, Pennsylvania. At its peak, Main Line Broadcasting owned 19 radio stations in four markets in the United States. The company was founded by Dan Savadove, and was most rece ...

, a defunct American media company *

Main Line Health Main Line Health (MLH) is a not-for-profit health system serving portions of Philadelphia and its western suburbs. It includes four acute care hospitals— Lankenau Medical Center, Bryn Mawr Hospital Bryn Mawr Hospital, part of Main Line Heal ...

, a not-for-profit health system in Philadelphia, Pennsylvania *

Mainline Corporation Mainline Corporation Ltd ("Mainline") was one of Australia's largest construction companies during the late 1960s and early 1970s. Mainline Corporation was responsible for building some of Australia's most notable landmark buildings before its co ...

, former Australian construction company *

Mainline Railways Bachmann Branchline is a British OO gauge model railway brand manufactured by Bachmann Europe PLC a subsidiary of Bachmann Industries, and is used for British outline OO scale model railways. Bachmann, a US company founded in 1835, was purchased ...

, a model railway brand now owned by Bachmann

Computing

BitTorrent (software) BitTorrent is a proprietary adware BitTorrent client developed by Bram Cohen and Rainberry, Inc. used for uploading and downloading files via the BitTorrent protocol. BitTorrent was the first client written for the protocol. It is often nicknam ...

, nicknamed ''mainline'' by developers denoting its official origins *

Mainline Linux The Linux kernel is a free and open-source, monolithic, modular, multitasking, Unix-like operating system kernel. It was originally authored in 1991 by Linus Torvalds for his i386-based PC, and it was soon adopted as the kernel for the GNU oper ...

, the Git repository of Linus Torvalds * Trunk or mainline, the primary branch of a software project

Other

Main line Mainline, ''Main line'', or ''Main Line'' may refer to: Transportation Railway * Main line (railway), the principal artery of a railway system * Main line railway preservation, the practice of operating preserved trains on an operational railw ...

, a primary variation in chess *

Main line (political) The Mainlinie (German for "Main-line") refers to the historical and political boundary between northern and southern Germany along the River Main. The line delimitates the spheres of influence of Austria and Prussia in the German Confederation dur ...

(''Mainlinie''), a historical and political boundary between Northern and Southern Germany, roughly following the River Main *

Mainline Protestant The mainline Protestant churches (also called mainstream Protestant and sometimes oldline Protestant) are a group of Protestant denominations in the United States that contrast in history and practice with evangelical, fundamentalist, and charis ...

, a group of Christian church denominations * "Mainlining," a slang term for

intravenous drug use Drug injection is a method of introducing a drug into the bloodstream via a hollow hypodermic needle, which is pierced through the skin into the body (usually intravenously, but also at an intramuscular or subcutaneous location). Intravenou ...

, a collection of suburbs of Philadelphia, Pennsylvania