Tokyo Metro Namboku Line
The Tokyo Metro Namboku Line (東京メトロ南北線 Tōkyō Metoro Namboku-sen, South-North Line) is a subway line owned and operated by Tokyo Metro in Tokyo, Japan. The line runs between Meguro in Shinagawa and Akabane-Iwabuchi in Kita. The Namboku Line was referred to as Line 7 during the planning stages, thus the seldom-used official name is Line 7 Namboku Line (7号線南北線 Nana-gō-sen Namboku-sen).
|Tokyo Metro Namboku Line|
|Daily ridership||522,736 (2017)|
|Opened||November 29, 1991|
|Rolling stock||Tokyo Metro 9000 series, Saitama Rapid Railway 2000 series, Tokyu 3000 series, Tokyu 5080 series|
|Line length||21.3 km (13.2 mi)|
|Track gauge||1,067 mm (3 ft 6 in)|
|Electrification||1,500 V DC overhead catenary|
|Operating speed||80 km/h (50 mph)|
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".
Trains run through onto the Tokyu Meguro Line for Hiyoshi and the Saitama Railway's Saitama Rapid Railway Line (which is essentially a separately-owned extension of the Namboku Line) for Urawa-Misono.
The right-of-way and stations between Shirokane-Takanawa 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 (▉), and its stations are given numbers using the letter "N".
- All stations are located in Tokyo.
- All services stop at all stations.
|↑ Through-running to/from Hiyoshi via Tokyu Meguro Line ↑|
|Shirokanedai||白金台[* 2]||1.3||1.3||Toei Mita Line (I-02) (shared)||Minato|
|Shirokane-takanawa||白金高輪[* 2]||1.0||2.3||Toei Mita Line (I-03) (shared)|
|Azabu-juban||麻布十番||1.3||3.6||Toei Oedo Line (E-22)|
|Akabane-iwabuchi||赤羽岩淵[* 3]||1.1||21.3||Saitama Rapid Railway Line|
|↓ Through-running to/from Urawa-Misono via the ■ Saitama Rapid Railway Line ↓|
- Meguro is shared by Toei, Tokyo Metro, and Tokyu Corporation; Tokyu Corporation manages the station.
- Shirokanedai and Shirokane-Takanawa are shared by Toei and Tokyo Metro; Tokyo Metro manages both stations.
- Akabane-iwabuchi is shared by Tokyo Metro and Saitama Rapid Railway; Tokyo Metro manages the station.
The 21.3 km 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 Komagome to Akabane-Iwabuchi opened on November 29, 1991.
The line initially operated with four-car EMUs. Upon its extension to Yotsuya in March 1996, the formations were extended to six cars. All stations are able to accommodate eight-car trains, but this length is not yet used.
The extension to Tameike-Sannō was completed in September 1997, and the last stretch from Tameike-Sanno to Meguro was completed on September 26, 2000, when through service to the Tokyu Meguro Line started. 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.
- Shaw, Dennis and Morioka, Hisashi, "Tokyo Subways", published 1992 by Hoikusha Publishing
- Tokyo Metro station ridership in 2017 Train Media (sourced from Tokyo Metro) Retrieved July 23, 2018.