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 ...

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

Asia

;Bangladesh * Main line, MRT Line 2 of

Dhaka Metro Rail The Dhaka Metro Rail () is a rapid transit, mass rapid transit system serving Dhaka (currently from Uttara North to Motijheel), the capital and largest city of Bangladesh. It is operated by the Dhaka Mass Transit Company Limited (DMTCL). Toget ...

;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 i ...

* 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 *

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 ...

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 * Rolling stock , the Chichibu Railway operates the following fleet of rolling stock on the line ...

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, Fukuoka, Chikushino. Between Orio Station and Haruda Station, as ...

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 *

Hakodate Main Line The is a railway line connecting the cities of Hakodate, Hokkaido, Hakodate and Asahikawa, Hokkaido, Asahikawa via Sapporo in Hokkaido, Japan. It is one of the trunk lines that is operated by the Hokkaido Railway Company (JR Hokkaido). The Sawa ...

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 Station, Umeda in Osaka and Sannomiya Stati ...

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 ...

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 ...

Hanshin Main Line The is a railway line operated by the private railway company Hanshin Electric Railway in Japan. It connects the two cities of Osaka and Kobe, between and stations respectively. Outline The Main Line of Hanshin is the southernmost railw ...

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 ...

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 Hiroden Streetcar Route 1, 1, Hiroden Streetcar Route 2, 2, Hiroden Streetcar R ...

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 () is a railway line owned by the West Japan Railway Company (JR West) connecting Maibara Station in Maibara, Shiga, with Tsuruga Station in Tsuruga, Fukui. The line formerly extended as far as Naoetsu Station in ...

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

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 compan ...

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 ...

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, Tokyo, Minato, Shinagawa, Tokyo, Shinagawa, Ōta, Tokyo, Ōta, and the Kanagawa Prefecture, Kanagawa municipalities o ...

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 = ...

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 Cen ...

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. Th ...

Meitetsu Nagoya Main Line The or Nagoya Line is a railway line operated by the private railway operator Nagoya Railroad (Meitetsu), connecting Toyohashi Station in Toyohashi with Meitetsu Gifu Station in Gifu. Since its amalgamation in 1944, this has been the Me ...

* Mizushima Main Line *

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

Nagasaki Main Line The , or simply known as the 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 ...

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

Nayoro Main Line The Nayoro Main Line was a rail line which was operated by Japanese National Railways and later under JR Hokkaido, which extended from Nayoro to Engaru, where it connected with the Sekihoku Main Line. It had a branch line known as the Yubetsu L ...

Nemuro Main Line is a railway line in Hokkaido. Following the closure of the Furano-Shintoku section on 1 April 2024 the line is operated by Hokkaido Railway Company (JR Hokkaido) in two sections, being Takikawa to Furano and Shintoku to Nemuro (including O ...

Nippō Main Line The is a railway line in Kyushu, in southern Japan, operated by Kyushu Railway Company (JR Kyushu). Also known as the Fukuhoku Nippo Line, The line connects Kokura Station in Kitakyushu, Fukuoka, and Kagoshima Station in Kagoshima, Kagoshima, K ...

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 and Koka. Its alignment is parallel with the Tōkaidō Shinkansen between Takamiya and Gokasho. The l ...

Ōigawa Railway Ōigawa Main Line Ōigawa or Oigawa ( or 大堰川, "Ōi River") is a Japanese family name and a toponym. It may refer to: * Kazuhiko Ōigawa, a Japanese politician and the current governor of Ibaraki Prefecture * Ōigawa, Shizuoka, a former town in Shizuoka Prefe ...

Osaka Monorail Main Line is a monorail route of the Osaka Monorail which connects Osaka Airport Station in Toyonaka, Osaka Prefecture, Senri-Chūō Station in Suita, Minami-Ibaraki Station in Ibaraki, Dainichi Station in Moriguchi, and Kadoma-shi Station in Kadoma. O ...

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

Rumoi Main Line The is a Japanese railway line in Hokkaido operated by Hokkaido Railway Company (JR Hokkaido) which connects Fukagawa Station in Fukagawa, Hokkaido, Fukagawa and Ishikari-Numata Station in Numata, Hokkaido, Numata. Following the discontinuation ...

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 Rail ...

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, in other words, the southern coast of western Honshu. The San'yō Shi ...

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 19th century provinces along t ...

Senmō Main Line The is a Japanese railway line in Hokkaido, operated by Hokkaido Railway Company (JR Hokkaido), between Higashi-Kushiro Station in Kushiro, Hokkaido, Kushiro and Abashiri Station in Abashiri, Hokkaido, Abashiri. The name comes from and . In 2 ...

Shin'etsu Main Line The 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 . Since the opening and later extension of ...

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 ...

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 c ...

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 Ar ...

Tōhoku Main Line The Tōhoku Main Line () is a 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, Saitama, Saitama, Utsunomiya, Tochigi, Uts ...

Tōkaidō Main Line The Tōkaidō Main Line () is one of the most important railway corridors in Japan, connecting the major cities of Tokyo and Kobe via Shizuoka (city), Shizuoka, Nagoya, Kyoto and Osaka. The line, with termini at Tokyo Station, Tokyo and Kōbe St ...

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 The is a transportation company in Toyama, Toyama, Toyam ...

* Toyohashi Railroad Azumada Main Line *

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, Niigata, Niigata and Akita Station in Akita, Akita, Akita. The name "Uet ...

;Korea * Trans-Korean Main Line ;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 starts from Kiamari station in the province of Sindh and ends a ...

, also referred to as Main Line 1 ;Philippines *

PNR North Main Line The PNR North Main Line (, simply known as PNR North or Northrail) is one of the two main line (railway), trunk lines of the Philippine National Railways in the island of Luzon, the other being the PNR South Main Line. The line during its maximu ...

PNR South Main Line The PNR South Main Line (, 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. It was opened in stages between 1916 a ...

;Sri Lanka *

Main Line (Sri Lanka) The Main Line is a major railway line in the Sri Lanka Railways, 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 Station, Colombo Fort and winds throu ...

;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 Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southe ...

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

Europe

Main Line for Europe The Magistrale for Europe (German: ''Magistrale für Europa''; French: ''Magistrale européenne'') or Main Line for Europe is a Trans-European Transport Networks (TEN-T) project for the creation of a high-speed railway line between Paris and Bra ...

;Finland *

Finnish Main Line __NOTOC__ The Finnish Main Line (; ) is a long electrified group of railway lines in Finland between the cities of Helsinki and Oulu. The first segment, a line from Helsinki to Hämeenlinna, was opened on March 17, 1862. The railway serves Hel ...

, between Helsinki and Oulu ;Germany *

Baden main line The Baden main line () is a German railway line that was built between 1840 and 1863. It runs through Baden, from Mannheim via Heidelberg, Karlsruhe, Offenburg, Freiburg, Basel, Waldshut-Tiengen, Waldshut, Schaffhausen and Singen to Konstanz. The ...

, between Baden and Constance ;Sweden *

Northern Main Line The Northern Main Line () is a long electrified railway in Sweden, between Gävle or Storvik and Ånge. The railway consists of single track except the parts between Mo grindar and Holmsveden, Kilafors and Bollnäs, and Ramsjö and Ovansjö ...

, between Gävle or Storvik and Ånge *

Southern Main Line The Southern Main Line () 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 (at platforms 16–19). ...

, between Malmö and Katrineholm *

Western Main Line The Western Main Line () 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 is a railway line in southern England linking London to Brighton. It starts at two termini in the capital, and , and the branches from each meet at , from where the route continues southwards via to the coast. The line ...

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

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 (Birmingham Moor Street railway station, Moor Street and Birmingham Snow Hill railway station, Snow Hill) on a route via High Wycombe, Bicester, Banbury, Leamington ...

Cornish Main Line The Cornish Main Line 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 Royal Albert Bridge at Saltash. It directly serves Truro, St Austell, Bodmin (by ...

East Coast Main Line The East Coast Main Line (ECML) is a electrified railway between its northern terminus at and southern terminus at . The key towns and cities of , , , , and are on the line. The line is a key transport artery on the eastern side of Grea ...

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

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 between London Paddington and . It connects to other main lines such as those from Reading to Penzance and Swindon to Swansea. The GWML is presently a part of t ...

Highland Main Line The Highland Main Line is a railway line in Scotland. It is long and runs through the central Scottish Highlands, mainly following the route of the A9 road (Scotland), A9, and linking a series of small towns and villages with Perth, Scotland, ...

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 par ...

, a defunct UK railfreight company *

Midland Main Line The Midland Main Line (MML), sometimes also spelt Midland Mainline, is a major Rail transport in Great Britain, railway line from London to Sheffield in Yorkshire via the East Midlands. It comprises the lines from London's St Pancras railway ...

Midland Mainline (train operating company) Midland Mainline was a train operating company in the United Kingdom that operated the Midland Main Line franchise between April 1996 and November 2007. It was owned by the British transport company National Express. Midland Mainline took ov ...

, a defunct UK train-operating company *

North British Railway Main Line The North British Railway was one of the two biggest of the five major Scottish railway companies prior to the 1923 Grouping. It was established in 1844, with the intention of linking with English railways at Berwick. The line opened in 1846, ...

Penrhyn Main Line class The Penrhyn Main Line class is 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 rail ...

, 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 ...

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 re ...

, between Doncaster and Cleethorpes *

South Wales Main Line The South Wales Main Line (), 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. It diverges from the co ...

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 wes ...

West Anglia Main Line The West Anglia Main Line is one of the two main line railways that operate out of (the other being the Great Eastern Main Line to Ipswich and Norwich). It runs generally north through Cheshunt, Broxbourne, Harlow, Bishop's Stortford and ...

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, Manchester, Liverpool 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 ...

North America

;United States * Cape Main Line, in Cape Cod, Massachusetts * IRT Manhattan Main Line, in New York City *

Main Line (Atlantic Coast Line Railroad) The CSX Transportation, CSX A Line forms the backbone of the historic Atlantic Coast Line Railroad Main Line, the backbone of their network in the southeastern United States. The main line runs from Richmond, Virginia to Port Tampa just southwes ...

, now the CSX A Line *

Main Line (Seaboard Air Line Railroad) The Seaboard Air Line Railroad’s Main Line was the backbone of the Seaboard Air Line Railroad's network in the southeastern United States. The main line ran from Richmond, Virginia to Tampa, Florida, a distance of over 800 miles. While some s ...

, now the CSX S Line * Main Line (Columbus to Chicago), a Pennsylvania Railroad line in Ohio, Indiana, and Illinois * Main Line (Columbus to Indianapolis via Bradford), 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 Track (rail transport), rail line owned and operated by the Long Island Rail Road in the U.S. state of New York (state), New York. It begins as a two-track line at Long Island City station in Long Island City, Queens, and runs ...

, 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, Suffern, New York (state), New York to Hoboken, New Jersey, Hoboken, New Jersey, in the United States. It runs da ...

, formerly part of the Erie Railroad, between Hoboken and Suffern, New Jersey * Main Line (Pittsburgh to St. Louis), a Pennsylvania Railroad line between Ohio and Illinois *

Main Line (Reading Company) The Main Line of the Reading Company was a railway line in the U.S. state of Pennsylvania. The main line (railway), main line ran from Philadelphia to Pottsville, Pennsylvania, following the Schuylkill River. Following the Reading Company's ba ...

, the former Reading main line between Philadelphia and Pottsville, Pennsylvania * 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 fr ...

, 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 Chicago Loop, downtown to a junction at Marshfield station. At this point the Garfield Park branch (CTA), Garfield Park branch conti ...

, 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 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 R ...

, 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 Boroughs of New York City, New York City borough of Manhattan, running entirely along Park Avenue. The line carries four ...

, the former New York Central Railroad (now Metro-North Railroad) from Grand Central Terminal in Manhattan to Mott Haven Junction in the South Bronx *

Philadelphia Main Line The Philadelphia Main Line, known simply as the Main Line, is an informally delineated historical and Social class in the United States, social region of suburban Philadelphia, Pennsylvania. Lying along the former Pennsylvania Railroad's onc ...

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 ...

, part of the Pennsylvania Railroad Main Line now owned by Amtrak * Philadelphia-to-Washington Main Line *

RF&P Subdivision The RF&P Subdivision is a railroad line operated by CSX Transportation and jointly owned by CSX and Virginia. It runs from Washington, D.C., to Richmond, Virginia, over lines previously owned by the Pennsylvania Railroad and the Richmond, Frederi ...

, former Richmond, Fredericksburg, & Potomac (RF&P) Main Line *

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. Service Serv ...

, between West Philadelphia and Lansdale, Pennsylvania *

South Side Main Line (Chicago Transit Authority) The South Side Elevated is a branch of the Chicago "L" system in Chicago, Illinois that is served by the Green Line. It has on average 12,509 passengers, counting branch divisions, boarding each weekday as of February 2013, according to the Chica ...

, 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 ga ...

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 rail corridor connecting Hobart to the northern ports of Tasmania. The Railway Line was built by the Tasmanian Main Line Company. His ...

, 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 o ...

, 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 Pennsylvania, Commonwealth of Pennsylvania in 1826 to establish a means of transporting freight between Philadelphia and Pittsburgh. It funded the construction of various lon ...

, 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 for which a fee (or ''Toll (fee), toll'') is assessed for passage. It is a form of road pricing typically implemented to help recoup the costs of road construction and ...

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 ro ...

(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 in the models years 1952 to 1956. It was introduced as the base trim level of the 1952 Ford range below the Customline and Crestline models.John Gunnell, Stand ...

, 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 McKenna Mendelson Mainline was a Canadians, Canadian blues band that released four albums. In the spring of 1969, the band was signed to Liberty Records (United Artists). History In the summer of 1968, in May, Toronto, Toronto, Ontario, Can ...

, 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 Black Ivory is an American rhythm and blues, R&B group from Harlem, which had a number of hits in the 1970s, including "Don't Turn Around (R&B Song), Don't Turn Around", "You and I (Black Ivory song), You and I", "I'll Find Away (Loneliest Man ...

* ''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, Paoli Hospital Paoli Hospital, part of Ma ...

, 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 purchase ...

, 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 nick ...

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

Mainline Linux The Linux kernel is a free and open source Unix-like kernel that is used in many computer systems worldwide. The kernel was created by Linus Torvalds in 1991 and was soon adopted as the kernel for the GNU operating system (OS) which was created ...

, the Git repository of Linus Torvalds *

Trunk Trunk may refer to: Biology * Trunk (anatomy), synonym for torso * Trunk (botany), a tree's central superstructure, and the stem of woody plants * Trunk of corpus callosum, in neuroanatomy * Elephant trunk, the proboscis of an elephant Comput ...

or mainline, the primary branch of a software project

Other uses

* Main line, 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 du ...

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

Mainline Drive-In Gepps Cross ( ) is a suburb and major road intersection in the north of Adelaide, South Australia. Gepps Cross is traditionally seen as the end of the inner suburbs and the start of the outer northern suburbs, as it was home to a major abattoir (n ...

, a drive-in theatre in Gepps Cross, South Australia *

Mainline Protestant The mainline Protestants (sometimes also known as oldline Protestants) are a group of Protestantism in the United States, Protestant denominations in the United States and Protestantism in Canada, Canada largely of the Liberal Christianity, theolo ...

, 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). Intravenous ...

, a collection of suburbs of Philadelphia, Pennsylvania