|Osaka Loop Line|
|Rolling stock|| 323 series |
|Daily ridership||984,395 (FY2015) |
|Opened||April 5, 1898 (first section)|
April 25, 1961 (entire line)
|Line length||21.7 km (13.5 mi)|
|Number of tracks||3 (Fukushima — Nishikujo)|
2 (other sections)
|Track gauge||1,067 mm (3 ft 6 in)|
|Electrification||1,500 V DC (overhead line)|
|Operating speed||100 km/h (62 mph)|
|Signalling||Automatic block signalling|
|Train protection system||ATS-P|
The Osaka Loop Line (大阪環状線, Ōsaka kanjō-sen) is a railway loop line in Japan operated by the West Japan Railway Company (JR West). It encircles central Osaka.
Part of a second, proposed outer loop line, the Osaka Higashi Line, from Hanaten to Kyuhoji was opened on March 15, 2008, and the line from Shigino to Shin-Ōsaka opened in March 2019. This entry covers the original central loop line.
This loop line consists of two tracks around the heart of metropolitan Osaka. All trains consist of 8 carriages, with distinctive orange colour with white JR graphics on the front, rear and sides. The train schedule varies, but on average, two trains leave Tennōji Station and Ōsaka Station every five minutes, in opposite directions.
Osaka Loop Line trains
Osaka Loop Line trains
JR Yumesaki Line through trains
Yamatoji Rapid, Regional Rapid
Kansai Airport Rapid,
Kishūji Rapid, Direct Rapid
On this line, JR West operates several types of trains. The line serves as a link between Ōsaka Station in northern Osaka (actually the Umeda district), and Tennōji in southern central Osaka. Some Limited Express trains linking north and south of the Osaka-Kobe-Kyoto area use the line as a bypass between the Tōkaidō Main Line in the north and the Hanwa Line in the south. Traffic is heavier in the eastern half, Osaka - Kyōbashi - Tennōji, than in the western half via Nishi-Kujō.
The completely loop shaped Osaka Loop Line is unable to use the 'up' and 'down' train direction convention commonly applied in Japanese railways, e.g. trains traveling to Tokyo are usually 'up' trains and vice versa. Instead, the words "outer circle" (or outer loop) (外回り, Soto mawari) and the "inner circle" (内回り, Uchi mawari) are used to refer to the direction. The outer is clockwise, the inner counterclockwise.
If rules, such as the registration of the line at Ministry of Land, Infrastructure and Transport apply,  the inner loop is down.
Local trains are operated all day. Some operate over the complete loop, while some serve the eastern half between Osaka and Tennōji via Kyōbashi.
Eight-car EMUs of 323 series are used. 221 series, 223 series and 225 series are used only for morning rush.
Trains of the Sakurajima Line (JR Yumesaki Line) are now operated through to the loop line to/from Kyōbashi and Tennoji.
Eight-car 323 series EMUs are used.
Through trains to the Kansai Main Line (Yamatoji Line) began operated in 1973. "Yamatoji Rapid" (大和路快速, Yamatoji Kaisoku) and "Regional Rapid" (区間快速, Kukan Kaisoku) trains originate at Tennōji on the loop, passing the loop as "inner" via Osaka, and after stopping at Tennōji after a complete circuit, exit the loop onto the Kansai Main Line and terminate at Kamo, Nara or Ōji. In the loop, Yamatoji Rapids pass some stations while Regional Rapids stop all.
For "Yamatoji Rapid" and "Regional Rapid", usually 8-car and 4+4 car 221 series EMUs are used.
Trains to the Hanwa Line, "Kansai Airport Rapid" (関空快速, Kankū Kaisoku) for Kansai Airport and Kishūji Rapid (紀州路快速, Kishūji Kaisoku) for Wakayama originate at either Tennoji or Kyobashi, and together with other types of rapid trains, operate on the inner loop via Osaka, pausing at Tennoji and then exiting from the loop. This pattern commenced in 1989, but increased significantly in 1994 on the opening of Kansai Airport.
8-car 223 series and 225 series EMUs in 4+4 formations are used for Kansai Airport and Kishūji rapids. 113 series 4-car units were used for rapids of Shin-Ōsaka - Kii-Tanabe in early morning and late night. They were withdrawn in 2010.
Charged Limited Expresses such as Haruka for Kansai International Airport, and south bound Kuroshio on the Hanwa Line and Kisei Main Line (Kinokuni Line) heading for the scenic southern Wakayama Prefecture utilise the Osaka Loop Line to bypass the Tōkaidō Main Line and reach the Hanwa Line. On the loop, aside from Tennōji, limited numbers of trains stop only at Nishi-Kujō.
Between the Tōkaidō Main Line and the Osaka Loop Line, trains utilise the "Umeda freight line" which crosses immediately west of Ōsaka Station, not stopping at Osaka because no passenger facilities are installed on the freight line, until it merges the main line at Shin-Ōsaka. This route was introduced in 1989 on the completion of a bypass track from the Hanwa Line to platforms of the Kansai Main Line at Tennōji. Until then no through operations were possible from the Hanwa Line.
281 series and 271 series EMUs are used for Haruka, 283 series EMUs, 287 series EMUs and 289 series EMUs for Kuroshio.
After the abandonment of the Naniwa freight terminal, freight trains on the line operate only between Fukushima and Nishikujō, from the "Umeda Freight Line" to Ajikawaguchi on the Sakurajima Line (JR Yumesaki Line).
Listed counterclockwise: All stations are in the city of Osaka, Osaka Prefecture.
|↑ Loop line towards Shin-Imamiya ↑|
|JR-O01||Tennōji||天王寺||11.0|| Kansai Main Line (Yamatoji Line) ( Q20 ), Hanwa Line ( R20 )|
Osaka Metro: Midōsuji Line (M23), Tanimachi Line (T27)
Kintetsu: Minami Osaka Line (F01: Osaka Abenobashi Station)
Hankai Uemachi Line (HN01: Tennoji-ekimae Station)
(Nankai Main Line Tennoji Branch - closed 1993)
|JR-O04||Tsuruhashi||鶴橋||14.0|| Kintetsu Nara Line (A04), Osaka Line (D04)|
Osaka Metro: Sennichimae Line (S19)
|JR-O05||Tamatsukuri||玉造||14.9||Osaka Metro: Nagahori Tsurumi-ryokuchi Line (N19)|
|JR-O06||Morinomiya||森ノ宮||15.8||Osaka Metro: Chūō Line (C19), Nagahori Tsurumi-ryokuchi Line (N20)||Chūō|
|JR-O08||Kyōbashi||京橋||17.5|| Katamachi Line (Gakkentoshi Line)/ JR Tōzai Line ( H41 )|
Keihan Main Line (KH03)
Osaka Metro: Nagahori Tsurumi-ryokuchi Line (N22)
|JR-O10||Temma||天満||20.1||Osaka Metro: Sakaisuji Line (K12: Ōgimachi Station)||Kita|
|JR-O11||Ōsaka||大阪||0.0|| Tōkaidō Main Line ( JR Kyoto Line ( A47 ), JR Kobe Line ( A47 ), JR Takarazuka Line ( G47 )), Osaka Higashi Line ( F01 , 2023), JR Tōzai Line ( H44 :Kitashinchi Station)|
Osaka Metro: Tanimachi Line (T20: Higashi-Umeda Station), Yotsubashi Line (Y11: Nishi-Umeda Station), Midōsuji Line (M16: Umeda Station)
Hankyu: Kōbe Line, Kyoto Line, Takarazuka Line (HK-01:Osaka-umeda Station)
Hanshin Main Line (HS 01:Osaka-umeda Station)
|JR-O12||Fukushima||福島||1.0|| JR Tōzai Line ( H45 :Shin-Fukushima Station)|
Hanshin Main Line (HS 02)
Keihan Nakanoshima Line (KH54:Nakanoshima Station)
|JR-O13||Noda||野田||2.4||Osaka Metro: Sennichimae Line (S12: Tamagawa Station)|
|JR-O14||Nishikujō||西九条||3.6|| Sakurajima Line (JR Yumesaki Line) ( P14 )|
Hanshin Namba Line (HS 45)
|JR-O15||Bentenchō||弁天町||5.2||Osaka Metro: Chūō Line (C13)||Minato|
|JR-O16||Taishō||大正||7.0||Osaka Metro: Nagahori Tsurumi-ryokuchi Line (N11)||Taishō|
|JR-O18||Imamiya||今宮||8.8||Kansai Main Line (Yamatoji Line) Q18|
|JR-O19||Shin-Imamiya||新今宮||10.0|| Kansai Main Line (Yamatoji Line) Q19 |
Nankai (NK03): Nankai Main Line, Kōya Line
Osaka Metro: Midōsuji Line (M22: Dōbutsuen-mae Station), Sakaisuji Line (K19: Dōbutsuen-mae Station)
Hankai Line (HN52: Minami-Kasumichō Station)
|↓ Loop line towards Tennōji ↓|
|Through to/from||Loop service in Osaka Loop Line||JR Yumesaki Line||Yamatoji Line||Hanwa Line||Hanwa Line &|
Kansai Airport Line
The first of a fleet of 21 new 323 series eight-car EMU trains were introduced from 24 December 2016, scheduled to entirely replace the fleet of 23 103 and 201 series trains by 2018.  As of December 2021, few of the remaining 103 series (from Nara Line) and 201 series (Osaka Higashi & Yamatoji Line) continue to be used on the Loop Line.
Locomotives seen hauling freight trains include the M250 series, EF65, EF66, EF81, EF210 and DE10.
A special discount rate is applied for travels within the Osaka Loop Line, the Sakurajima Line and the segment between JR Namba Station and Tennōji Station of the Kansai Main Line (collectively called the Osaka Loop Zone (大阪環状線内, Ōsaka Kanjōsen-nai)). The following table is the rate for adult single-ride tickets.  (Note: Fractions of one kilometre are rounded up to the nearest full kilometre.)
|1 – 3||120|
|4 – 6||160|
|7 – 10||170|
|11 – 15||190|
|16 – 20||260|
For travel between a station within the zone and a station out of the zone or between two stations out of the zone, fares are calculated in accordance with a universal fare table and the discount rate as above is not applicable.
For the calculation of the fare for travel between two stations out of the zone that includes the segment between Ōsaka Station and Tennōji Station of the Osaka Loop Line, where two routes (10.7 km or 6.6 mi route via Temma and 11.0 km or 6.8 mi route via Fukushima) are practical, the shorter route is always used irrespective of the actual travel route.  
The Osaka Loop Line consists of four segments, namely:
The Osaka to Tennōji via Kyōbashi section (the eastern half of Osaka Loop Line) was opened by the Osaka Railway (大阪鉄道, Osaka Tetsudō) (which also opened the present Minami Osaka Line network) to link it to the Japanese Government Railway (JGR) network in 1895. The line was opened in 2 stages: Tennōji - Tamatsukuri (2 mi. 28 chain, ca. 3.8 km) on 28 May; and Tamatsukuri - Umeda (4 mi. 29 chain, ca. 7.0 km) on 17 October.
Earlier, in 1889, the company opened its main line from Kashiwara - Tennōji - Minatomachi (湊町, present JR Namba) which includes a short section of the Osaka Loop Line, being Tennōji - Imamiya; Imamiya station itself, located between Tennōji and Minatomachi, was opened in 1890.
The Osaka Railway merged with the Kansai Railway (関西鉄道, Kansai Tetsudō, also read as Kansei or Kwansai) in 1900, creating a single entity for the line from Tennōji Station to JGR Ōsaka Station. The Kansai Railway was acquired by the national government in 1907 under the 1906 Railway Nationalization Act. In 1909 the line was named the "Jōtō Line" (城東線, Jōtō sen).
In 1930, distrances were changed to metric, thus the distance changed from 6.6 miles. to 10.7 km. Electrification of the Jōtō Line was commissioned in 1933.
The Osaka to Nishi-Kujō section (the northwestern quarter of the line) was built by the Nishinari Railway (西成鉄道, Nishinari Tetsudō) to provide rail access to the Osaka Port. In 1898, the company opened the Osaka - Ajikawaguchi line, which was leased to JGR in 1904. In 1906 the company was nationalized under the act of the same year. In 1909, the line was named the "Nishinari Line" (西成線, Nishinari sen) which included the present-day Sakurajima Line.
The Nishinari Line was electrified in 1941.
The Tennōji to Sakaigawa Signal Box (between Taishō and Bentenchō, closed in 2006 when the branch to the port closed) section (south-western portion of the loop) was constructed for freight traffic by the JGR to the port area in 1928, connecting to a freight branch line of the Kansai Main Line, Imamiya - Naniwa (浪速) - Osaka-minato (大阪港, apart from the present Ōsakakō Station on the Osaka Municipal Subway Chūō Line) with a distance of 5.2 mi. (ca. 8.4 km). In 1930 with the change to metric measurement, it became 8.2 km. The former Osaka-Minato and Osaka-Tōkō stations were closed in 1984.
To complete the Loop Line, new tracks were constructed between Nishi-Kujō and Sakaigawa Signal Box by the then Japanese National Railways. In 1961, this section opened and the new Osaka Loop Line was named for the entirety of the then Jōtō Line, Osaka - Nishi-Kujō section of the Nishinari Line (the rest, Nishi-Kujō - Sakurajima was named the Sakurajima Line) and the new Nishi-Kujō - Taishō - Tennōji section.
In 1964, operation as a complete Loop Line commenced with the opening of elevated double tracks around Nishi-Kujō. Until then the operation had been undertaken in the shape of a mirrored "6", Sakurajima - Nishi-Kujō - Osaka - Kyōbashi - Tennōji - Nishi-Kujō. The Tennōji - Shin-Imamiya section was quadrupled in 1968, to separate operations from the Kansai Main Line.
Osaka Station is a major railway station in the Umeda district of Kita-ku, Osaka, Japan, operated by West Japan Railway Company. It forms as one of the city's main railway terminals to the north, the other being Shin-Ōsaka.
The Yamatoji Line is the common name of the western portion of the Kansai Main Line. The line is owned and operated by West Japan Railway Company, and starts at Kamo Station in Kyoto Prefecture and ends at JR Namba Station in Naniwa-ku, Osaka.
The Hanwa Line is a commuter rail line in the Osaka-Kobe-Kyoto Metropolitan Area, owned and operated by West Japan Railway Company. The 61.3 km line runs between Osaka and Wakayama, Japan and has a 1.7 km branchline in a southern Osaka suburb. The name is taken from the second syllable of Osaka and the first syllable of Wakayama.
Kintetsu Railway Co., Ltd., referred to as Kintetsu (近鉄), is a Japanese passenger railway company, managing infrastructure and operating passenger train service. Its railway system is the largest in Japan, excluding Japan Railways Group. The railway network connects Osaka, Nara, Kyoto, Nagoya, Tsu, Ise, and Yoshino. Kintetsu Railway Co., Ltd. is a wholly owned subsidiary of Kintetsu Group Holdings Co., Ltd.
Tennōji Station is a railway station on the JR West Osaka Loop Line, Hanwa Line, Yamatoji Line, Osaka Metro Midōsuji Line, and Tanimachi Line, located in Tennōji-ku and Abeno-ku, Osaka, Japan, and Tennōji-ekimae Station is a railway station on the tram Hankai Uemachi Line in Abeno-ku, Osaka, Japan. They are also connected to Ōsaka Abenobashi Station on the Kintetsu Minami Osaka Line.
The Katamachi Line, officially nicknamed the Gakkentoshi Line, is a commuter rail line and service in the Osaka-Kobe-Kyoto Metropolitan Area of Japan, owned and operated by West Japan Railway Company. The line connects Kizu Station in Kyoto Prefecture and Kyōbashi Station in Osaka.
The Osaka Higashi Line is a railway line in Osaka, Japan, operated by the West Japan Railway Company (JR-West). The line connects Shin-Osaka Station in northern Osaka with Kyūhōji Station in Yao, forming an arc around the northern and eastern suburbs of the city. Before being named on August 23, 2007, the line was constructed with the tentative name "Osaka Outer Loop Line".
The Kansai Main Line 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 and West Japan Railway Company, with the boundary between both companies being located at Kameyama Station in Kameyama, Mie.
Ōsaka Abenobashi Station is a railway station on Kintetsu Minami Osaka Line in Abeno-ku, Osaka, Japan. The station is also called "Abenobashi Station" (あべの橋駅).
The Hanshin Namba Line is a railway line operated by the private railway operator Hanshin Electric Railway connecting Amagasaki Station in Amagasaki, Hyogo Prefecture, and Ōsaka Namba Station in Chuo-ku, Osaka, Osaka Prefecture, Japan.
The Nara Line is a commuter rail line in the Osaka–Kobe–Kyoto metropolitan area, operated by the West Japan Railway Company. Its official termini are Kizu Station in Kizugawa and Kyōto Station in Kyoto, within Kyoto Prefecture; however, all trains continue past Kizu on the Yamatoji Line to Nara Station in Nara, Nara Prefecture.
The JR Tōzai Line is one of several commuter rail lines and services in the Osaka-Kobe-Kyoto Metropolitan Area, operated by West Japan Railway Company. The line, whose name literally means "east-west", runs underground through central Osaka and connects the Gakkentoshi Line at Kyobashi Station in Osaka and the JR Takarazuka Line and the JR Kobe Line at Amagasaki. All stations on this line are in the city of Osaka, except for the western terminus in Amagasaki, Hyōgo Prefecture.
The Sakurajima Line is a railway line in Osaka, Japan, operated by West Japan Railway Company connecting Nishikujō Station to Sakurajima Station. It is also referred to as the JR Yumesaki Line (JRゆめ咲線). The entire line is within Konohana-ku, Osaka, and connects the Osaka Loop Line to Universal Studios Japan (USJ).
The Domyoji Line is a single-tracked, 2.2 km short railway line operated by Kintetsu Railway, connecting Dōmyōji Station in the city of Fujiidera and Kashiwara Station in Kashiwara, both in Osaka Prefecture.
The Osaka Metro Midōsuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro. Constructed under Midōsuji, a major north-south street, it is the oldest line in the Osaka subway system and the second oldest in Japan, following the Tokyo Metro Ginza Line. Its official name is Rapid Electric Tramway Line No. 1 (高速電気軌道第1号線), while the Osaka Municipal Transportation Bureau refers to it as Osaka City Rapid Railway Line No. 1 (大阪市高速鉄道第1号線), and in MLIT publications it is referred to as Line No. 1 . On line maps, stations on the Midōsuji Line are indicated with the letter "M".
Nara Station is a railway station located in Nara, Japan. Operated by West Japan Railway Company, it is the main stop in the city of Nara on the Kansai Main Line, the terminus for the Sakurai Line, and Nara Line trains for Kyoto begin here and run on the Kansai Line to Kizu before diverging. Also, a limited number of Gakkentoshi Line trains terminate here via Kizu during early mornings and late nights.
Taisho Station is a combined railway station and metro station located in Taishō-ku, Osaka, Japan. The station is served by the Osaka Loop Line and the Nagahori Tsurumi-ryokuchi Line.
Hineno Station is a junction passenger railway station located in the city of Izumisano, Osaka Prefecture, Japan, operated by the West Japan Railway Company
The Kuroshio (くろしお) is a limited express train service in Japan connecting Kyoto, Shin-Osaka, Tennōji, Wakayama, Kii-Tanabe, Shirahama, and Shingu via the Tokaido Main Line, Osaka Loop Line, Hanwa Line, and Kisei Line, operated by West Japan Railway Company. This article covers the derivative limited express trains, "Super Kuroshio (スーパーくろしお)" and "Ocean Arrow (オーシャンアロー)", the names of which were discontinued from start of the revised timetable on 17 March 2012.
The Naniwasuji Line is the tentative name for a planned underground heavy rail line, which will run north-south through Osaka City, primarily under the avenue Naniwasuji. It has long been pursued by West Japan Railway Company and Nankai Railway in order to connect the Yamatoji Line and Nankai Main Line with Shin-Osaka Station, greatly enhancing both companies' connections to Kansai Airport and Wakayama Prefecture. As of 2017, construction is expected to begin within the next few years and last until spring 2031.
This article incorporates material from the corresponding article in the Japanese Wikipedia