Yotsubashi Line

Osaka Metro Yotsubashi Line
A refurbished Yotsubashi Line 23 series EMU in August 2012
Overview
Status	Operational
Owner	Osaka Metro (2018–present) Osaka Municipal Transportation Bureau (1942–2018)
Line number	3
Locale	Osaka, Japan
Termini	Nishi-Umeda Suminoekōen
Stations	11
Color on map	Ocean blue (#0078BE)
Service
Type	Rapid transit
System	Osaka Metro
Depot(s)	Midorigi, Morinomiya (located on Chuo Line)
Rolling stock	23 series EMUs
History
Opened	10 May 1942; 82 years ago (1942-05-10)
Last extension	9 November 1972; 51 years ago (1972-11-09)
Technical
Line length	11.4 km (7.1 mi)
Track length	11.8 km (7.3 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 closed block
Train protection system	WS-ATC
Route map

v t e Yotsubashi Line
Legend
Midosuji Line Shin-Osaka Hankyū Takarazuka Main Line Hankyū Kobe Main Line Jūsō Yodo River Umeda Freight Line Kita-Umeda Tōkaidō Main Line Kyoto Line Kobe Line Takarazuka Line Osaka Loop Line Umeda Hanshin Main Line 0.0 Nishi-Umeda Kitashinchi JR Tōzai Line Dōjima River Watanabebashi Keihan Nakanoshima Line Tosabori River 1.3 Higobashi Midōsuji Line 2.2 Hommachi Chūō Line to Chūō Line Nagahori Tsurumi-ryokuchi Line Shinsaibashi 3.2 Yotsubashi Sennichimae Line Ōsaka Namba Kintetsu Namba Line & Hanshin Namba Line 4.1 Namba 5.3 Daikokuchō Osaka Loop Line & Kansai Main Line (Yamatoji Line) Midōsuji Line 6.6 Hanazonochō 7.7 Kishinosato 9.0 Tamade 10.1 Kitakagaya Midorigi Depot 11.8 Suminoekōen km

The Osaka Metro Yotsubashi Line (四つ橋線, Yotsubashi-sen) is an underground rapid transit line in Osaka, Japan, operated by Osaka Metro. The line connects Umeda, Hommachi, Yotsubashi, Namba, Daikokuchō and Suminoe, and runs parallel to the Midōsuji Line from Daikokuchō to Nishi-Umeda. Despite being the system's second line to open, its official name is Rapid Electric Tramway Line No. 3 (高速電気軌道第3号線), while the Osaka Municipal Transportation Bureau refers to it as Osaka City Rapid Railway Line No. 3 (大阪市高速鉄道第3号線), and in Ministry of Land, Infrastructure and Transport publications, it is written as Line No. 3 (Yotsubashi Line) (3号線（四つ橋線）). Station numbers are indicated by the letter Y.^[1]