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Osaka Metro Tanimachi Line
Tanimachi Line30000 series train in April 2015
Overview
Native name	谷町線
Status	Operational
Owner	Osaka Metro (2018–present) Osaka Municipal Transportation Bureau (1967–2018)
Line number	2
Locale	Osaka Yao Moriguchi
Termini	Dainichi Yaominami
Stations	26
Color on map	Tyrian purple (#522886)
Service
Type	Rapid transit
System	Osaka Metro
Depot(s)	Dainichi, Yao
Rolling stock	22 series,30000 series
History
Opened	24 March 1967; 58 years ago (24 March 1967)
Technical
Line length	28.1 km (17.5 mi)
Track length	28.3 km (17.6 mi)
Number of tracks	Double-track
Track gauge	1,435 mm (4 ft 8+1⁄2 in)standard gauge
Electrification	750 V DC (third rail)
Operating speed	70 km/h (43 mph)
Signalling	Automatic closing block
Train protection system	WS-ATC
Route map

Route map
Legend
Upper numbers are actual distance, lower are fare distance Osaka Monorail Main Line 0.0 T11Dainichi Dainichi Depot 1.8 T12Moriguchi Imazatosuji Line 3.0 T13Taishibashi-Imaichi I14 4.0 T14Senbayashi-Ōmiya 5.1 T15Sekime-Takadono 5.9 T16Noe-Uchindai 7.2 T17Miyakojima 8.5 T18Tenjimbashisuji Rokuchōme K11 ←Hankyu Senri Line Sakaisuji Line Hanshin Kita-Osaka Line 9.3 T19Nakazakichō Osaka (Osaka Loop Line) 10.3 T20Higashi-Umeda (connections below) JR Tōzai Line Sakaisuji Line 11.5 T21Minami-morimachi K13 L：Osaka-Tenmangū Keihan Nakanoshima Line old Yodo River Keihan Main Line 13.1 13.3 T22Temmabashi 13.8 14.2 T23Tanimachi Yonchōme C18 Chūō Line Nagahori Tsurumi-ryokuchi Line 14.6 15.2 T24Tanimachi Rokuchōme N18 15.5 16.1 T25Tanimachi Kyūchōme S18 Sennichimae Line ←Kintetsu Namba Line /Osaka Line→ Osaka Uehommachi 16.5 16.9 T26Shitennōji-mae Yūhigaoka Osaka Loop Line 17.6 17.8 T27Tennōji (M23) Kansai Main Line (Yamatoji Line) Nankai: Tennoji Line Midōsuji Line Osaka Abenobashi Minami Osaka Line→ Tennōji-ekimae Hanwa Line 18.2 18.4 T28Abeno Nankai Hirano Line Hankai Uemachi Line Midōsuji Line 19.3 19.5 T29Fuminosato Hanwa Line 20.3 20.5 T30Tanabe Kintetsu: Minami-Osaka Line 21.3 21.5 T31Komagawa-Nakano Hirano (Nankai) 23.0 23.2 T32Hirano 24.4 24.6 T33Kire-Uriwari Kansai Line Branch (Hanwa Freight Line) 25.7 25.9 T34Deto 26.9 27.1 T35Nagahara 28.1 28.3 T36Yaominami Yao Depot

Connecting lines around Umeda
Legend
1:Yotsubashi Line (planned extension) 2:Osaka Metro：Midōsuji Line 3:Hankyu:Kobe/Takarazuka/Kyoto Main Line 1 2 3 4 4:JR-W：Tōkaidō Main Line (JR Kyoto Line) JR-W： Tōkaidō Main Line (JR Kobe/Takarazuka Line) Umeda (Hankyu) Osaka / JR-W：Osaka Loop Line Umeda (M16) /Subway Tanimachi Line Hanshin：Hanshin Main Line /Umeda (Hanshin) Higashi-Umeda (T20) (Y11)Nishi-Umeda / Subway Tanimachi Line Kitashinchi / JR-W：JR Tōzai Line SubwayYotsubashi Line

TheOsaka Metro Tanimachi Line (谷町線,Tanimachi-sen) is arapid transit line ofOsaka Metro, running fromDainichi Station inMoriguchi toYaominami Station inYao throughOsaka. Despite chronologically being the system's fourth line, its official name isRapid Electric Tramway Line No. 2 (高速電気軌道第2号線), while theOsaka Municipal Transportation Bureau refers to it asOsaka City Rapid Railway Line No. 2 (大阪市高速鉄道第2号線), and inMLIT publications, it is written asLine No. 2 (Tanimachi Line) (2号線（谷町線）). On line maps, stations on the Tanimachi Line are indicated with the letterT.

The central part of the line runs underneath Tanimachi-suji, a broad north–south thoroughfare lined withprefectural government buildings andBuddhist temples. Its only above-ground segment is the vicinity of Yaominami Station. The line color on maps, station signs and train livery istyrian purple (京紫,kyō-murasaki), derived from thekasaya robes worn by Buddhist monks.

As noted above, the Tanimachi Line is officially "Line No. 2", but it was actually the fourth to open, after Line No. 3 (theYotsubashi Line) duringWorld War II and Line No. 4 (theChūō Line) in the early 1960s. The line was opened gradually from the late 1960s to the early 1980s.

Ridership, though less than half the numbers of the busiestMidōsuji Line, is still the second-highest of all lines in the Osaka Metro network, thanks to the large number of government buildings in easternChūō-ku and schools around Tennōji (total ridership for fiscal year 2009 was approximately 480,000 per day).^[1] It is likely because of this also the second-most profitable subway line in Osaka (total profit for FY 2009 was ¥7.3 billion — a 9.4% increase over the previous year).^[1]

The Tanimachi Line has the longest operating distance (for the purpose of fare calculation) in the Osaka Metro network, after the Midōsuji Line (although the latter would be the longest in the Osaka Metro network if theKita-Osaka Kyūkō Railway extension of the Midōsuji Line was taken into account). It runs completely underground from Dainichi to just before Yaominami, and was known as the longest continuously underground subway line in Japan for a long time after the opening of Yaominami Station (it was also among the longest subway tunnels in the world at the time of its opening).^[2] Now, it is fourth in Japan after theToeiŌedo Line (entire line, 40.7 km or 25.3 mi),Saitama Rapid Railway Line/Tokyo MetroNamboku Line/TōkyūMeguro Line (Urawa-Misono –Fudō-mae viaAkabane-Iwabuchi andMeguro, 36.9 km or 22.9 mi), andNagoya Municipal SubwayMeijō Line/Meikō Line (entire line, 32.4 km or 20.1 mi).

If one considersHigashi-Umeda,Umeda, andNishi-Umeda stations as the same station (as they are for the purpose of transfers within 30 minutes), the Tanimachi Line has connections to all other subway lines in Osaka. (By comparison, the Chūō Line is the only subway line in Osaka that connects to all other subway lines, as well as theNankō Port Town Line.)

• Above-ground section: vicinity of Yaominami
• Blocking system: Automatic
• Train protection system:WS-ATC
• Cars per train: 6 (1976–present)
• Maximum possible cars per train (platform length): 8

For the purposes of fare calculation, the Higashi-Umeda–Tennōji segment is adjusted to the same length as Umeda–Tennōji on the Midōsuji Line.

No.	Name[3]	Japanese	Distance (km)	Transfers	Location
T 11	Dainichi	大日	0.0	Osaka Monorail Main Line	Moriguchi
T 12	Moriguchi	守口	1.8
T 13	Taishibashi-Imaichi	太子橋今市	3.0	Imazatosuji Line (I14)	Asahi-ku, Osaka
T 14	Sembayashi-Omiya	千林大宮	4.0
T 15	Sekime-Takadono	関目高殿	5.1
T 16	Noe-Uchindai	野江内代	5.9	Keihan Main Line (Noe) FOsaka Higashi Line (JR-Noe)	Miyakojima-ku, Osaka
T 17	Miyakojima	都島	7.2
T 18	Tenjimbashisuji Rokuchōme	天神橋筋六丁目	8.5	Sakaisuji Line Hankyu Senri Line (K11)	Kita-ku, Osaka
T 19	Nakazakichō	中崎町	9.3
T 20	Higashi-Umeda	東梅田	10.3	Midōsuji Line (M16) Yotsubashi Line (Y11) AJR Kyōto Line (Tōkaidō Main Line) AJR Kōbe Line (Tōkaidō Main Line) GJR Takarazuka Line (Tōkaidō Main Line) OOsaka Loop Line – (Ōsaka) FOsaka Loop Line – (Ōsaka) HJR Tōzai Line – (Kitashinchi) Hankyu Kobe Line Hankyu Kyoto Line Hankyu Takarazuka Line) Hanshin Main Line
T 21	Minami-morimachi	南森町	11.5	Sakaisuji Line (K13)
T 22	Temmabashi	天満橋	13.1	Keihan Main Line Keihan Nakanoshima Line	Chūō-ku, Osaka
T 23	Tanimachi Yonchōme	谷町四丁目	13.8	Chūō Line (C18)
T 24	Tanimachi Rokuchome	谷町六丁目	14.6	Nagahori Tsurumi-ryokuchi Line (N18)
T 25	Tanimachi Kyūchōme	谷町九丁目	15.5	Sennichimae Line (S18) DOsaka Line AKintetsu Namba Line AKintetsu-Nara Line – (Ōsaka Uehommachi)	Tennōji-ku, Osaka
T 26	Shitennōji-mae Yūhigaoka	四天王寺前夕陽ヶ丘	16.5
T 27	Tennōji	天王寺	17.6	Midōsuji Line (M23) QYamatoji Line (VKansai Line) OOsaka Loop Line RHanwa Line FMinami Osaka Line – (Ōsaka Abenobashi) Hankai Uemachi Line
T 28	Abeno	阿倍野	18.2	Hankai Uemachi Line	Abeno-ku, Osaka
T 29	Fuminosato	文の里	19.3
T 30	Tanabe	田辺	20.3		Higashisumiyoshi-ku, Osaka
T 31	Komagawa-Nakano	駒川中野	21.3
T 32	Hirano	平野	23.0		Hirano-ku, Osaka
T 33	Kire-Uriwari	喜連瓜破	24.4
T 34	Deto	出戸	25.7
T 35	Nagahara	長原	26.9
T 36	Yaominami	八尾南	28.1		Yao

All trains stop at every station along their route. During the day, trains alternate between Dainichi and Yaominami, and between Miyakojima and Fuminosato, with additional trains starting or terminating at Kire-Uriwari during rush hour. As the line is quite long and goes through the center of Osaka, express service was planned, but never implemented.^{[citation needed]}

Since 1976, all trains have had 6 cars. Platforms are long enough to accommodate 8-car trainsets; the unused portions are fenced.

Women-only cars were introduced on the line from 15 December 2003. There is one such designated car in each train (Car No. 3), the use of which is restricted on weekdays from the first train until 9 a.m. The women-only restriction is lifted after 9 a.m.

• 22 series 6-car EMUs (since 1990)
• 30000 series 6-car EMUs (since 2009)

In 2006, in preparation for the opening of theKintetsuKeihanna Line extension of the Chūō Line (then known as the Higashi-Osaka Line), nine 20-series trainsets of the Tanimachi Line were exchanged for nine 22-series trainsets (converted from 24-series trains) from the Chūō Line, and had their cheatlines repainted into the Tanimachi line's purple colour.

Until 2016, heavier train maintenance and inspection were carried out by the same group in charge of Chūō Line trains, at the Morinomiya depot and workshop, accessible through a spur located beforeTanimachi Rokuchōme Station on the Tanimachi Line and afterTanimachi Yonchōme Station on the Chūō Line (the Dainichi and Yao depots are used mainly to store off-service trains). Since 2016, said maintenance of all third-rail-powered Osaka Metro rolling stock have been consolidated at Midorigi Depot on theYotsubashi Line, so Tanimachi Line rolling stock are also allowed to travel on the Chūō and Yotsubashi lines to access Midorigi Depot.

• 
  22 series trainset (Tanimachi Line 22–50 series)
• 
  30000 series trainset

• 50 series (1969–1991)
  • 5700 series (1980–1991)
  • 5800 series (1978–1991)
  • 5900 series (1978–1991)
• 10 series (1974–1976; subsequently transferred to theMidōsuji Line)
• 20 series (1989–2006; transferred to theChūō Line)
• 30 series (1967–2013)

• 
  30 series trainset

According to the original plan laid out for the Tanimachi Line in 1927, it was to follow Matsuyamachi-suji (to the west of Tanimachi-suji). It was also intended to interface directly with the Midōsuji Line directly at Umeda, similar to thecross-platform interchange between the Yotsubashi Line and the Midōsuji Line atDaikokuchō. A second tunnel was dug at Umeda for this purpose, but the connection southwards was plagued by collapses and other accidents; as a result, the planned route was changed to the current one, stopping at Higashi-Umeda and then veering eastward. The tunnel at Umeda reserved for the Tanimachi Line ("Matsuyamachi Line") went unused for decades before finally being adapted for the southbound track of the Midōsuji Line in 1989, allowing for expanded platforms to cope with overcrowding. Over the course of tunnel construction for the line, the underground waterways in Osaka were greatly altered, causing a number of incidents in which famous wells dried up.

On April 8, 1970,a gas explosion during the construction of the underground Tenjimbashi Rokuchōme Station resulted in a massive explosion and fire that killed 79 people, injured 420 others, and damaged 495 buildings.

Compared to the majority of areas served by the subway, where it runs underneath major roadways with high levels of traffic, part of the Tanimachi Line runs underneath relatively narrow streets with fewer cars, near residential areas. This is because the Abeno–Hirano section of the line was constructed as the successor in passenger transport to the same section of the Nankai Hirano Line, a tramway which ran aboveground between Imaike and Hirano, following the route of the Tanimachi Line from Abeno eastward. While it belongs to a different operator, this section of the Tanimachi Line is essentially the old streetcar line converted to an underground rapid-transit service.

The names of stations within this section reflect the station names of the Hirano Line:

• 24 March 1967: Opening of the Higashi-Umeda – Tanimachi Yonchōme section asOsaka Subway Line 2.^[4] Trains started running in 2-car formation.
• October, 1967:Automatic train operation (ATO) trialled on Line 2, trials ended in February 1968.
• 17 December 1968: Opening of the Tanimachi Yōnchōme – Tennōji section. Trains started running in 4-car formation.
• 6 December 1969: Officially adopted the nameTanimachi Line.
• 8 April 1970: The "Ten-Roku Gas Explosion Accident" occurs during the construction of the underground Tenjimbashi Rokuchōme Station at 17:45JST, leading to 79 deaths and 420 injuries.
• 29 May 1974: Opening of the Higashi-Umeda – Miyakojima section. 10 series EMUs began operation (later transferred to Midōsuji Line in February 1976).
• 25–31 October 1976: Trains started running in 6-car formation.
• 6 April 1977: Opening of the Miyakojima – Moriguchi section.
• 27 November 1980: Opening of the Tennōji – Yaominami section.
• 8 February 1983: Opening of the Moriguchi – Dainichi section.
• May 1989: 20 series EMUs began operation (transferred to the Chūō Line in 2006)
• April 1990: 22 series EMUs began operation, replacing the 50 series.
• 18 March 2009: 30000 series EMUs began operation.^[5]

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