Nanakuma Line

The Nanakuma Line (七隈線, Nanakuma-sen) is a subway line, part of the Fukuoka City Subway system in Fukuoka, Japan. It runs from Hashimoto Station in Nishi Ward to Tenjin-Minami Station in Chūō Ward, all within Fukuoka. The line's color on maps is green. Officially, the line is called Line 3 (Nanakuma Line) (3号線(七隈線), San-gō-sen (Nanakuma-sen)). Like other Fukuoka City Subway lines, stations are equipped with automatic platform gates, and trains are automatically operated by ATO system.

Nanakuma Line
3000 series trainsets at Hashimoto depot
Overview
OwnerFukuoka City Subway
LocaleFukuoka, Fukuoka
TerminiHashimoto
Tenjin-Minami
Stations16
Service
TypeRapid transit
Depot(s)Hashimoto
Rolling stock3000 series
History
Opened3 February 2005
Technical
Line length12 km (7.5 mi)
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification1,500 V DC from overhead catenary
Route map
km
0.0
 Hashimoto
Muromi River
1.0
 Jirōmaru
1.7
 Kamo
Kanakuzu River
2.6
 Noke
3.4
 Umebayashi
4.3
 Fukudaimae
4.9
 Nanakuma
5.7
 Kanayama
6.5
 Chayama
7.5
 Befu
Hī River
8.3
 Ropponmatsu
9.2
 Sakurazaka
10.2
 Yakuin-ōdōri
Tenjin Ōmuta Line
10.8
 Yakuin
11.3
 Watanabe-dōri
12.0
 Tenjin-Minami
00.0
opening
2022
00.↓
opening
2022
Nakagawa
Hakata River
(name undecided)
13.6
 Hakata

Overview

The line is 12 km (7.5 mi) long and serves eight stations across four wards in Fukuoka. All stations are equipped with platform screen doors.[1]

Unlike the Airport Line and the Hakozaki Line which both run at 1,067 mm (3 ft 6 in), the Nanakuma line runs on 1,435 mm (4 ft 8+1⁄2 in) standard gauge.

Station numbering for all stations on the Fukuoka City Subway was introduced in March 2011.[2]

Stations
No. Station Japanese Distance (km) Transfers Location
N01Hashimoto橋本0NishiFukuoka, Fukuoka
N02Jirōmaru次郎丸1.0Sawara
N03Kamo賀茂1.7
N04Noke野芥2.6
N05Umebayashi梅林3.4Jōnan
N06Fukudaimae福大前4.3
N07Nanakuma七隈4.9
N08Kanayama金山5.7
N09Chayama茶山6.5
N10Befu別府7.5
N11Ropponmatsu六本松8.3Chūō
N12Sakurazaka桜坂9.2
N13Yakuin-ōdōri薬院大通10.2
N14Yakuin薬院10.8Nishitetsu Tenjin Ōmuta Line
N15Watanabe-dōri渡辺通11.3
N16Tenjin-Minami天神南12.0■ Fukuoka City Subway Kūkō Line, ■ Hakozaki Line (Tenjin)
Nishitetsu Tenjin Ōmuta Line (Fukuoka)
N17Kushida Jinja-mae櫛田神社前駅TBDUnder construction (2023)
N18Hakata博多13.6Under construction (2023)
Transfers planned with:
■ Fukuoka City Subway Kūkō Line
Kyushu Shinkansen, Kagoshima Main Line, Sasaguri Line (Fukuhoku Yutaka Line)
Hakata Minami Line, Sanyō Shinkansen		Hakata

History

This is the fourth linear motor subway line to be built in Japan, opening on 3 February 2005. The Nanakuma Line was originally conceived in the 1960s to provide access to Nakamura Gakuen University and Fukuoka University, and in 1975 it was planned to run from Tenjin-Minami Station to Jōnan Station as a linear-motored subway, but the plan was subsequently amended for the line to end at Hashimoto Station.

The name for the line was selected in a naming contest.[3] "Nanakuma Line", which finished third, was selected over the first-place "Jonan Line" and runner-up "Fukudai Line" because of its stronger historical connotations as well as being more geographically accurate compared to the other names. Nanakuma is a district in Jōnan ward which is close to the center of the line.[3]

The line links the Central business district and the southwestern part of the city which previously did not have a railway line.

Construction on a 1.6 km (0.99 mi) extension from Tenjin-Minami to Hakata station via Canal City received its final planning permissions in 2014. Construction was initially scheduled to be completed by 2020, but delays after a sinkhole opening up in front of JR Hakata Station pushed the schedule up by three years.[4] On 7 January 2021, Fukuoka City announced the planned opening of the extension by March 2023.[5] The city also reported that there were no delays as a result of the COVID-19 Pandemic.

Rolling Stock
Main article: Fukuoka Subway 3000 series

The line currently employs four-car long 3000 series trains purchsed in 2005 for the start of revenue service. There are 17 sets accounting for 68 cars.[6]

A further four sets were ordered in 2021. These sets, designated as 3000A series, will feature a blue and green livery and are intended for an increase in service when the Nanakuma Line is extended from Tenjin-Minami to Hakata, scheduled to open in 2023.[7]

See also

References
  1. "Movable Platform Doors: Make the station platform a safe and comfortable space". mitsubishielectric.co.jp. Retrieved 12 January 2022.{{cite web}}: CS1 maint: url-status (link)
  2. "駅ナンバリング(駅番号制)の導入について" [About the introduction of station numbering (station numbering system)]. subway.city.fukuoka.lg.jp (in Japanese). 10 October 2011. Archived from the original on 19 January 2012. Retrieved 12 January 2022.
  3. "３号線　愛称は「七隈線」　福岡市営地下鉄" [Line 3 Nicknamed "Nanakuma Line" Fukuoka Municipal Subway]. nishinippon.co.jp (in Japanese). 21 June 2006. Archived from the original on 18 November 2005. Retrieved 12 January 2022.
  4. "七隈線延伸工事に係る道路陥没事故報告 福岡市交通局 （報告資料）" [Report of Road Collapse Accident Related to Nanakuma Line Extension Work Fukuoka City Transportation Bureau (Report Material)] (PDF). subway.city.fukuoka.lg.jp (in Japanese). 12 May 2017. Archived (PDF) from the original on 28 February 2020. Retrieved 12 January 2022.
  5. "【速報】地下鉄七隈線の博多駅延伸　23年3月開業、福岡市が方針固める" [[Breaking news] Fukuoka City announces the extension to Hakata Station of the Subway Nanakuma Line to open in March 2023]. Nishi Nippon Shimbun (in Japanese). 7 January 2022.
  6. "福岡市地下鉄事業概要 令和2年" [Fukuoka City Subway Business Overview 2019] (PDF). city.fukuoka.lg.jp (in Japanese). 2019. Retrieved 12 January 2022.{{cite web}}: CS1 maint: url-status (link)
  7. "Fukuoka Subway orders sky and mountain liveried trainsets". railwaygazette.com/metro-report. DVV Media International. 13 July 2021. Retrieved 12 January 2022.{{cite web}}: CS1 maint: url-status (link)
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