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Yotsubashi Line

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Osaka Metro Yotsubashi Line
A refurbished Yotsubashi Line 23 series EMU in August 2012
Overview
OwnerOsaka Metro (2018–present)
Osaka Municipal Transportation Bureau (1942–2018)
Line number3
LocaleOsaka, Japan
Termini
Stations11
Service
TypeRapid transit
SystemOsaka Metro
Depot(s)Midorigi, Morinomiya (located on Chuo Line)
Rolling stock23 series EMUs
History
Opened10 May 1942
Technical
Line length11.4 km (7.1 mi)
Track gauge1,435 mm (4 ft 8+1⁄2 in)
Electrification750 V DC, third rail
Operating speed70 km/h (45 mph)
Route map

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. 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]

Overview

The Yotsubashi Line runs in a north and south direction. connecting the Osaka Metro Nankō Port Town Line at Suminoekōen Station. At first, it was a branch of the Osaka Metro Midōsuji Line, branching off at Daikokuchō Station but was extended north to Nishi-Umeda Station and made a separate line. This new section of the Yotsubashi Line takes a more direct routing to Nishi-Umeda running only 300-400m west of the Midosuji Line.

History

  • 10 May 1942 – Daikokuchō – Hanazonochō (opening)
  • Construction stopped during World War II.
  • 1 June 1956 – Hanazonochō – Kishinosato (opening)
  • 31 May 1958 – Kishinosato – Tamade (opening)
  • 1 October 1965 – Daikokuchō – Nishi-Umeda (opening)
  • 9 November 1972 – Tamade – Suminoekōen (opening)

Future plans

A northward extension to Jūsō Station is under review.[2]

Operations

Most trains are operated between Nishi-Umeda station and Suminoe-Koen Station, with 2–3 minute interval during the morning rush hour, 6–7½ minute interval during the day, 3–4 minute intervals at the afternoon, 5–10 minute interval at night, and 10 minute interval in the early morning and late night. During the morning and evening (afternoon on weekends only), there are train that only run between Kita-Kagaya station and Nishi Umeda Station, as Kita-Kagaya is connected to the Yotsubashi Line depot at Midorigi.

In addition, on the day of the Suminoe boat race at night (excluding Sundays), one special train operates between 9pm and 10pm.

It is connected with the New-Tram at Suminoe-Koen station.

On March 23, 2013, the Osaka Bureau of Transport revised the timetable for the Yotsubashi Line. By using the train that was a going to a depot without any passengers, the final train became 0:20am for the northbound and 0:10am (for Suminoe-Koen) and 0:36am (for Kita-Kagaya) for the southbound. And because of passenger demand, for weekdays between 10am and 12pm was changed from 5 minute to 6 minute interval and for weekends and on holidays between 10am and 3pm was changed from 5-6 minute interval to 7-7½ minute interval.

Since 2016, the regular inspection of the trains used on the third rail lines of Osaka Metro has been carried at Midorigi depot, trains of the Midosuji Line, the Tanimachi Line, the Chuo Line, and the Sennichimae Line may run on the Yotsubashi Line.

Stations

No. Distance
(km) 		Station Japanese Connections Location
 Y11  0.0 Nishi-Umeda 西梅田
Kita-ku, Osaka
 Y12  0.9 Higobashi 肥後橋 Keihan Nakanoshima Line – Watanabebashi Nishi-ku, Osaka
 Y13  1.9 Hommachi 本町
 Y14  2.9 Yotsubashi 四ツ橋
 Y15  3.7 Namba 難波・なんば
Naniwa-ku, Osaka
 Y16  4.9 Daikokuchō 大国町 Midōsuji Line (M21)
 Y17  6.2 Hanazonochō 花園町   Nishinari-ku, Osaka
 Y18  7.3 Kishinosato 岸里  
 Y19  8.6 Tamade 玉出  
 Y20  9.7 Kitakagaya 北加賀屋   Suminoe-ku, Osaka
 Y21  11.4 Suminoekōen 住之江公園 Nankō Port Town Line (New Tram) (P18)

Rolling stock

Current

All trains are based at Midorigi Depot. Since 2014, Yotsubashi Line trains are also able to access Morinomiya Depot located on the Chuo Line, after a connecting track was built between these two lines near Hommachi Station. Currently all trains are 6 cars long but subway platforms are long enough to accommodate trains up to 8 cars long.

Former

  • 400 series (1942–1969)
  • 1000 series (1956–1971)
  • 1100 series (1958–1979)
  • 1200 series (1958–1980)
  • 50 series (1960–1980)
  • 30 series (1972–1996)

See also

References

Wikimedia Commons has media related to Yotsubashi Line.
  1. ^ 四つ橋線. Osaka Kotsu (in Japanese). Osaka Municipal Transportation Bureau. Retrieved 5 August 2014.
  2. ^ 北ヤード新線、大筋合意　大阪市地下鉄四つ橋線乗り入れ. Asahi Shimbun (in Japanese). 9 December 2006. Retrieved 5 August 2014.
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