View source for Tokyo Metro Namboku Line

{{Short description|Subway line in Tokyo, Japan}}
{{More citations needed|date=January 2022}}
{{Use dmy dates|date=January 2022}}
{{Infobox rail line
| box_width   =
| name        = Tokyo Metro Namboku Line
| other_name  = N
| linenumber  = 7
| native_name = 東京メトロ南北線
| native_name_lang = ja
| color       = {{rcr|Tokyo Metro|N}}
| mapcolor = {{rcb|Tokyo Metro|N|box}} [[Teal]] (#{{rcr|Tokyo Metro|N}})
| logo        = Logo of Tokyo Metro Namboku Line.svg
| logo_width  = 50px
| image       = TokyoMetro9000.JPG
| image_width = 
| caption     = A Namboku Line [[Tokyo Metro 9000 series|9000 series]] train
| system      = [[Tokyo subway]]
| status      =
| locale      = Tokyo
| start       = {{STN|Meguro|x}}
| end         = {{STN|Akabane-Iwabuchi|x}}
| stations    = 19
| routes      =
| daily_ridership   = 522,736 (2017)<ref name="train media">[http://www.train-media.net/report/1110/metro.pdf Tokyo Metro station ridership in 2017] ''Train Media (sourced from Tokyo Metro)'' Retrieved July 23, 2018.</ref>
| open        = {{start date and age|1991|11|29|df=y}}
| close       =
| owner       = {{ric|Tokyo Metro|name=y}}
| operator    = Tokyo Metro
| character   =
| depot       = Ōji
| stock       = {{Plainlist|
* [[Tokyo Metro 9000 series]]
* [[Saitama Rapid Railway 2000 series]]
* [[Tokyu 3000 series]]
* [[Tokyu 5080 series]]
* [[Tokyu 3020 series]]
}}
| linelength  = {{cvt|21.3|km|mi|abbr=on}}
| tracklength = 
| tracks      = [[Double-track railway|Double-track]]
| gauge       = {{RailGauge|1067mm|lk=on}}
| electrification = {{1,500 V DC}} ([[overhead catenary]])
| speed       = {{cvt|80|km/h}}
| maxincline  = 3.5%
| minradius   = {{cvt|160.351|m|ft}}
| signalling  = 
| trainprotection = [[CS-ATC|New CS-ATC]], [[Automatic train operation|ATO]]
| elevation   =
| map         = [[File:Namboku.svg|240px]] {{Tokyo Metro 7 RDT|inline=1}}
| map_state   = collapsed
}}
The {{Nihongo|'''Tokyo Metro Namboku Line'''|東京メトロ南北線|Tōkyō Metoro Nanboku-sen|South-North Line}} is a subway line owned and operated by [[Tokyo Metro]] in [[Tokyo]], Japan. The line runs between [[Meguro Station|Meguro]] in [[Shinagawa, Tokyo|Shinagawa]] and [[Akabane-Iwabuchi Station|Akabane-Iwabuchi]] in [[Kita, Tokyo|Kita]]. The Namboku Line was referred to as Line 7 during the planning stages, thus the seldom-used official name is {{Nihongo|Line 7 Namboku Line|7号線南北線|Nana-gō-sen Nanboku-sen}}.

On maps, diagrams and signboards, the line is shown using the color emerald (previously coded "teal"), and its stations are given numbers using the letter "N".

==Overview==
Trains [[through train|run through]] onto the [[Tokyu Meguro Line]] for {{STN|Hiyoshi|x|Kanagawa}} and the Saitama Railway's [[Saitama Rapid Railway Line]] (which is essentially a separately-owned extension of the Namboku Line) for {{STN|Urawa-Misono|x}}.

The right-of-way and stations between {{STN|Shirokane-Takanawa|x}} and Meguro are shared with the [[Toei Mita Line]] – a unique situation on the Tokyo subway where both operators share common infrastructure. Under an agreement between Tokyo Metro and the Tokyo Metropolitan Government, the fare for this section is calculated on the Toei fare system for passengers traveling to stations on the Mita Line past Shirokane-Takanawa, on the Metro fare system for passengers traveling to stations on the Namboku Line past Shirokane-Takanawa, and on the system "most beneficial to the passenger" (presently the Metro schedule) for travel solely on the shared sector.

On maps, diagrams and signboards, the Namboku Line is shown using the color emerald (<span style="color: #00ada9;">▉</span>), and its stations are given numbers using the letter "N".

== Station list ==
* All stations are located in Tokyo.
* All services stop at all stations.

{| class="wikitable" 
|-
!rowspan="2"|Station<br />No.
!rowspan="2"|Station
!rowspan="2"|Japanese
!colspan="2"|Distance (km)
!rowspan="2"|Transfers
!rowspan="2"|Location
|-
!Between<br />stations
!From N-01
|-
| colspan="7" align="center" |'''↑ [[Through train|Through-running]] to/from ↑'''

{{TQLS|MG}} {{lnl|Tokyu|MG}} for {{STN|Hiyoshi|x|Kanagawa}}

{{TQLS|SH|size=20}} {{lnl|Tokyu|SH}} for {{STN|Shin-Yokohama|x}}

{{ric|Sotetsu}} [[Sagami Railway Main Line|Sōtetsu Main Line]] for {{STN|Ebina|x}}

{{ric|Sotetsu}} [[Sagami Railway Izumino Line|Sōtetsu Izumino Line]] for {{STN|Shōnandai|x}} (via {{STN|Futamata-gawa|x}} on the Sōtetsu Main Line)
|-
|{{TSSN|N|01|40}}
|{{STN|Meguro|x}}
|目黒<ref group="*">Meguro is shared by Toei, Tokyo Metro, and Tokyu Corporation; Tokyu Corporation manages the station.</ref>
| style="text-align:center;" | –
| style="text-align:right;" |0.0
|{{Plainlist|
* {{TQLS|MG}} {{lnl|Tokyu|MG}}
* {{TSLS|I}} {{lnl|Toei Subway|I}} (I-01) (shared)
* {{JRLS|JY}} [[Yamanote Line]]
}}
|[[Shinagawa, Tokyo|Shinagawa]]
|-
|{{TSSN|N|02|40}}
|{{STN|Shirokanedai|x}}
|白金台<ref group="*" name="metro_own">Shirokanedai and Shirokane-Takanawa are shared by Toei and Tokyo Metro; Tokyo Metro manages both stations.</ref>
|style="text-align:right;"|1.3
|style="text-align:right;"|1.3
|{{TSLS|I}} Mita Line (I-02) (shared)
|rowspan="4"|[[Minato, Tokyo|Minato]]
|-
|{{TSSN|N|03|40}}
|{{STN|Shirokane-takanawa|x}}
|白金高輪<ref group="*" name="metro_own" />
|style="text-align:right;"|1.0
|style="text-align:right;"|2.3
|{{TSLS|I}} Mita Line (I-03) (shared)
|-
|{{TSSN|N|04|40}}
|{{STN|Azabu-juban|x}}
|麻布十番
|style="text-align:right;"|1.3
|style="text-align:right;"|3.6
|{{TSLS|E}} {{lnl|Toei Subway|E}} (E-22)
|-
|{{TSSN|N|05|40}}
|{{STN|Roppongi-itchome|x}}
|六本木一丁目
|style="text-align:right;"|1.2
|style="text-align:right;"|4.8
|{{TSLS|H}} {{lnl|Tokyo Metro|H}} ({{STN|Roppongi|x}}: H-04)
|-
|{{TSSN|N|06|40}}
|{{STN|Tameike-sanno|x}}
|溜池山王
|style="text-align:right;"|0.9
|style="text-align:right;"|5.7
|{{Plainlist|
*{{TSLS|G}} {{lnl|Tokyo Metro|G}} (G-06)
*{{TSLS|M}} {{lnl|Tokyo Metro|M}} ({{STN|Kokkai-gijidomae|x}}: M-14)
*{{TSLS|C}} {{lnl|Tokyo Metro|C}} (Kokkai-gijidomae: C-07)
}}
|rowspan="2"|[[Chiyoda, Tokyo|Chiyoda]]
|-
|{{TSSN|N|07|40}}
|{{STN|Nagatacho|x}}
|永田町
|style="text-align:right;"|0.9
|style="text-align:right;"|6.6
|{{Plainlist|
* {{TSLS|Y}} {{lnl|Tokyo Metro|Y}} (Y-16)
* {{TSLS|Z}} {{lnl|Tokyo Metro|Z}} (Z-04)
* {{TSLS|G}} Ginza Line at {{STN|Akasaka-mitsuke|x}} (G-05)
* {{TSLS|M}} Marunouchi Line at Akasaka-mitsuke (M-13)
}}
|-
|{{TSSN|N|08|40}}
|{{STN|Yotsuya|x}}
|四ツ谷
|style="text-align:right;"|1.3
|style="text-align:right;"|7.9
|{{Plainlist|
* {{TSLS|M}} Marunouchi Line (M-12)
* {{JRLS|JC}} [[Chūō Line (Rapid)]]
* {{JRLS|JB}} [[Chūō-Sōbu Line]]
}}
|rowspan="3"|[[Shinjuku, Tokyo|Shinjuku]]
|-
|{{TSSN|N|09|40}}
|{{STN|Ichigaya|x}}
|市ケ谷
|style="text-align:right;"|1.0
|style="text-align:right;"|8.9
|{{Plainlist|
*{{TSLS|Y}} Yūrakuchō Line (Y-14)
*{{TSLS|S}} {{lnl|Toei Subway|S}} (S-04)
*{{JRLS|JB}} [[Chūō-Sōbu Line]]
}}
|-
|{{TSSN|N|10|40}}
|{{STN|Iidabashi|x}}
|飯田橋
|style="text-align:right;"|1.1
|style="text-align:right;"|10.0
|{{Plainlist|
* {{TSLS|T}} {{lnl|Tokyo Metro|T}} (T-06)
* {{TSLS|Y}} Yūrakuchō Line (Y-13)
* {{TSLS|E}} Ōedo Line (E-06)
* {{JRLS|JB}} [[Chūō-Sōbu Line]]
}}
|-
|{{TSSN|N|11|40}}
|{{STN|Korakuen|x}}
|後楽園
|style="text-align:right;"|1.4
|style="text-align:right;"|11.4
|{{Plainlist|
*{{TSLS|M}} Marunouchi Line (M-22)
*{{TSLS|I}} Mita Line ({{STN|Kasuga|x|Tokyo}}: I-12)
*{{TSLS|E}} Ōedo Line (Kasuga: E-07)
}}
|rowspan="3"|[[Bunkyō, Tokyo|Bunkyō]]
|-
|{{TSSN|N|12|40}}
|{{STN|Todaimae|x}}
|東大前
|style="text-align:right;"|1.3
|style="text-align:right;"|12.7
|&nbsp;
|-
|{{TSSN|N|13|40}}
|{{STN|Hon-komagome|x}}
|本駒込
|style="text-align:right;"|0.9
|style="text-align:right;"|13.6
|&nbsp;
|-
|{{TSSN|N|14|40}}
|{{STN|Komagome|x}}
|駒込
|style="text-align:right;"|1.4
|style="text-align:right;"|15.0
| {{JRLS|JY}} [[Yamanote Line]]
|[[Toshima, Tokyo|Toshima]]
|-
|{{TSSN|N|15|40}}
|{{STN|Nishigahara|x}}
|西ケ原
|style="text-align:right;"|1.4
|style="text-align:right;"|16.4
|&nbsp;
|rowspan="5"|[[Kita, Tokyo|Kita]]
|-
|{{TSSN|N|16|40}}
|{{STN|Oji|x|Tokyo}}
|王子
|style="text-align:right;"|1.0
|style="text-align:right;"|17.4
|{{Plainlist|
*{{JRLS|JK}} [[Keihin-Tōhoku Line]]
*{{ric|Toei|TA|name=y}} ({{STN|Ōji|x|Tokyo|Oji-ekimae}})
}}
|-
|{{TSSN|N|17|40}}
|{{STN|Oji-kamiya|x}}
|王子神谷
|style="text-align:right;"|1.2
|style="text-align:right;"|18.6
|&nbsp;
|-
|{{TSSN|N|18|40}}
|{{STN|Shimo|x}}
|志茂
|style="text-align:right;"|1.6
|style="text-align:right;"|20.2
|&nbsp;
|-
|{{TSSN|N|19|40}} {{TSSN|SR|19|40}}
|{{STN|Akabane-iwabuchi|x}}
|赤羽岩淵<ref group="*">Akabane-iwabuchi is shared by Tokyo Metro and Saitama Rapid Railway; Tokyo Metro manages the station.</ref>
|style="text-align:right;"|1.1
|style="text-align:right;"|21.3
|{{TSLS|SR}} {{lnl|Saitama|Saitama}}
|-
|colspan="7" align="center" |↓'''[[Through train|Through-running]] to/from'''↓
{{TSLS|SR}} Saitama Rapid Railway Line for {{STN|Urawa-Misono|x}}
|}

==Rolling stock==
* [[Tokyo Metro 9000 series]] 6/8-car EMUs
* [[Tokyu 3000 series]] 8-car EMUs
* [[Tokyu 5080 series]] 8-car EMUs
* [[Tokyu 3020 series]] 8-car<ref name=":0">{{Cite web |date=2022-04-09 |title= |script-title=ja:東急目黒線・東京メトロ南北線・埼玉高速鉄道線で8両編成の運転開始 |trans-title=8-car trains begin operating on the Tokyu Meguro Line, Tokyo Metro Namboku Line, and Saitama Rapid Railway Line |url=https://railf.jp/news/2022/04/09/201000.html |access-date=2022-05-27 |website=Japan Railfan Magazine Online |publisher=Koyusha Co., Ltd. |location=Japan |language=ja}}</ref> EMUs
* [[Saitama Rapid Railway 2000 series]] 6-car EMUs
* [[Sotetsu 20000 series|Sotetsu 21000 series]] 8-car EMUs
<gallery>
File:TokyoMetro9000.JPG|Tokyo Metro 9000 series
File:Series-SR2000-2802.jpg|Saitama Rapid Railway 2000 series
File:Tokyu-Series3000-3813.jpg|Tokyu 3000 series
File:Tokyu-Series5080-5187F 8cars.jpg|Tokyu 5080 series
File:Tokyu-railway-3122F-20221119-150646.jpg|Tokyu 3020 series
File:Sagami-Railway-21000-21106F.jpg|Sotetsu 21000 series
</gallery>

==History==
The {{convert|21.3|km|abbr=on}} Namboku Line is one of Tokyo Metro's newer lines, featuring advanced technology including full [[automatic train operation]] and [[platform screen doors]]. Although the line was originally proposed in 1968, construction did not begin until the 1980s, partly due to the right-of-way to Meguro with the [[Toei Mita Line]]. The first segment from {{STN|Komagome|x}} to {{STN|Akabane-Iwabuchi|x}} opened on 29 November 1991.

The line initially operated with four-car EMUs. Upon its extension to [[Yotsuya Station|Yotsuya]] in March 1996, the formations were extended to six cars. On 1 April 2022, eight-car trains began operating on the line.<ref name=":0" />

The extension to {{STN|Tameike-Sannō|x}} was completed in September 1997, and the last stretch from Tameike-Sanno to Meguro was completed on 26 September 2000, when through service to the [[Tokyu Meguro Line]] started.<ref>{{Cite web |date=30 August 2000 |title=開業区間の運賃及び相互直通運転に伴う運行形態を決定 |url=http://www.tokyometro.go.jp/news/2000-s02.html |archive-url=https://web.archive.org/web/20031217172233/http://www.tokyometro.go.jp/news/2000-s02.html |archive-date=17 December 2003 |access-date=29 January 2024 |website=tokyometro.go.jp}}</ref> Through service with the [[Saitama Rapid Railway Line]] commenced when it opened in March 2001 and accommodated traffic to and from [[Saitama Stadium]] during the [[2002 World Cup]]. Although the Saitama Line is more or less a northern extension of the Namboku Line, it nevertheless remains a private entity to which the Namboku Line offers through services with.

The Namboku Line was inherited by [[Tokyo Metro]] after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.<ref>{{Cite web |date=2006-07-08 |title=「営団地下鉄」から「東京メトロ」へ |trans-title=From "Teito Rapid Transit Authority" to "Tokyo Metro" |url=https://www.tokyometro.jp/news/s2004/2004-06.html |url-status=dead |archive-url=https://web.archive.org/web/20120516041232/http://www.tokyometro.jp/news/s2004/2004-06.html |archive-date=16 May 2012 |access-date=29 May 2022 |website=Tokyo Metro Online}}</ref>

Effective the timetable revision on 18 March 2023, through services onto the [[Sagami Railway]] commenced courtesy of the [[Tōkyū Shin-Yokohama Line|Tokyu]] and [[Sōtetsu Shin-Yokohama Line|Sotetsu Shin-Yokohama Line]].<ref>{{Cite web |date=27 January 2022 |title=～神奈川県央地域及び横浜市西部から東京・埼玉に至る広域的な鉄道ネットワークの形成～ |trans-title=-Formation of a wide-area railway network from central Kanagawa Prefecture and western Yokohama to Tokyo and Saitama- |url=https://www.tokyometro.jp/news/images_h/metroNews220127_g01_1.pdf |archive-url=https://web.archive.org/web/20220127092346/https://www.tokyometro.jp/news/images_h/metroNews220127_g01_1.pdf |archive-date=27 January 2022 |access-date=22 March 2023 |website=tokyometro.jp}}</ref> Most southbound services past Hiyoshi continue as far south as [[Shin-Yokohama Station|Shin-Yokohama]] and [[Ebina Station|Ebina]].

=== Future plans ===
On 28 January 2022, [[Tokyo Metro]] announced that a {{Convert|2.5|km|mi|abbr=on}} spur line from [[Shirokane-takanawa Station|Shirokane-takanawa]] to [[Shinagawa Station|Shinagawa]] would be built.<ref>{{Cite web|date=28 January 2022|title=有楽町線延伸（豊洲・住吉間）及び南北線延伸（品川・白金高輪間）の鉄道事業許可を申請しました。|trans-title=Yurakucho Line extension (between Toyosu and Sumiyoshi) and Namboku Line extension (between Shinagawa and Shirokane Takanawa) application for a Business Permit|url=https://www.tokyometro.jp/news/images_h/metroNews220128_1.pdf|access-date=28 January 2022|website=Tokyo Metro|language=ja}}</ref> The extension is expected to cost {{JPYConvert|131000000000|usd|lk=January 2022|year=2021}} and scheduled to begin revenue service in the mid-2030s. It is intended to increase connections to and from the [[Chūō Shinkansen]], which is scheduled to open for service in 2027.

==References==
{{Reflist|group="*"}}
{{refbegin}}
* Shaw, Dennis and Morioka, Hisashi, "Tokyo Subways", published 1992 by Hoikusha Publishing
{{refend}}
{{reflist}}

==External links==
{{commons category}}
* [https://www.tokyometro.jp/lang_en/station/line_namboku/index.html Namboku Line Official Website]

{{Tokyo transit}}

[[Category:Tokyo Metro Namboku Line| ]]
[[Category:Lines of Tokyo Metro|Namboku Line]]
[[Category:Railway lines in Tokyo]]
[[Category:Railway lines opened in 1991]]
[[Category:1067 mm gauge railways in Japan]]
[[Category:1991 establishments in Japan]]