Yotsubashi Line 23 series EMU
|System||Osaka Municipal Subway|
|Opened||May 10, 1942|
|Owner||Osaka Municipal Transportation Bureau|
|Rolling stock||23 series EMUs|
|Line length||11.4 km (7.1 mi)|
|Track gauge||1,435 mm (4 ft 8 1⁄2 in)|
|Electrification||750 V DC, third rail|
|Operating speed||70 km/h (45 mph)|
The Yotsubashi Line (四つ橋線 Yotsubashi-sen) is an underground rapid transit line in Osaka, Japan, operated by the Osaka Municipal Subway. The line connects Umeda, Hommachi, Yotsubashi, Namba, Daikokuchō and Suminoe, and runs parallel to the Midōsuji Line from Daikokuchō to Nishi-Umeda. 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 MLIT 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.
- 23 series (since 1990)
All trains are based at Midorigi Depot.
- 400 series (1942–1969)
- 1000 series (1956–1971)
- 1100 series (1958–1979)
- 1200 series (1958–1980)
- 50 series (1960–1980)
- 30 series (1972–1996)
- May 10, 1942 - Daikokuchō - Hanazonochō (opening)
- Construction stopped during World War II.
- June 1, 1956 - Hanazonochō - Kishinosato (opening)
- May 31, 1958 - Kishinosato - Tamade (opening)
- October 1, 1965 - Daikokuchō - Nishi-Umeda (opening)
- November 9, 1972 - Tamade - Suminoekōen (opening)
A northward extension to Jūsō Station is under review.
|Wikimedia Commons has media related to Yotsubashi Line.|