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|Tokyo Metro Namboku Line|
|Color on map||Teal (#00AC9B)|
|Daily ridership||522,736 (2017)|
|Opened||29 November 1991|
|Line length||21.49 km (13.35 mi)|
|Number of tracks||Double-track|
|Track gauge||1,067 mm (3 ft 6 in)|
|Minimum radius||160.351 m (526.09 ft)|
|Electrification||1,500 V DC (overhead catenary)|
|Operating speed||80 km/h (50 mph)|
|Train protection system||New CS-ATC, ATO|
The 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 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 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".
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".
|↑ Through-running to/from ↑|
|Shirokanedai||白金台||1.3||1.3||Mita Line (I-02) (shared)||Minato|
|Shirokane-takanawa||白金高輪||1.0||2.3||Mita Line (I-03) (shared)|
|Azabu-juban||麻布十番||1.3||3.6||Ōedo Line (E-22)|
|Akabane-iwabuchi||赤羽岩淵||1.1||21.3||Saitama Railway Line|
|↓ Through-running to/from↓|
The 21.3 km (13.2 mi) 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. On 1 April 2022, eight-car trains began operating on the line.
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.
The Namboku Line was inherited by Tokyo Metro after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.
Effective the timetable revision on 18 March 2023, through services onto the Sagami Railway commenced courtesy of the Tokyu and Sotetsu Shin-Yokohama Line.Most southbound services past Hiyoshi continue as far south as Shin-Yokohama and Ebina.
On 28 January 2022, Tokyo Metro announced that a 2.5 km (1.6 mi) spur line from Shirokane-takanawa to Shinagawa would be built. The extension is expected to cost ¥ 131 billion (2021) ( US$ 1.19 billion) 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.
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Meguro Station is a railway station in the Kamiōsaki district of Shinagawa, Tokyo, close to the boundary with Meguro ward.
The Tokyo Metro is a major rapid transit system in Tokyo, Japan, operated by the Tokyo Metro Co. With an average daily ridership of 6.84 million passengers, the Tokyo Metro is the larger of the two subway operators in the city; the other being the Toei Subway, with 2.85 million average daily rides.
The Tōyoko Line is a major railway line connecting Tokyo (Shibuya) to Yokohama. The line is owned and operated by the private railway operator Tokyu Corporation. The name of the line, Tōyoko (東横), is a combination of the first characters of Tōkyō (東京) and Yokohama (横浜). The Tōyoko Line is the mainline of the Tokyu network. The section between Den-en-chofu and Hiyoshi Station is a quadruple track corridor with the Tōkyū Meguro Line.
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The Tokyo Metro Hibiya Line is a subway line in Tokyo, Japan, owned and operated by Tokyo Metro. The line was named after the Hibiya area in Chiyoda's Yurakucho district, under which it passes. On maps, diagrams and signboards, the line is shown using the color silver, and its stations are given numbers using the letter "H".
The Tokyo Metro Yurakucho Line is a subway line in Japan owned and operated by Tokyo Metro. The line connects Wakōshi Station in Wakō, Saitama and Shin-Kiba Station in Kōtō, Tokyo. On maps, diagrams and signboards, the line is shown using the color "gold", and its stations are given numbers using the letter "Y".
The Meguro Line is a railway line operated by Japanese private railway company Tokyu Corporation. As a railway line, the name is for the section between Meguro and Den-en-chōfu in southwest Tokyo, but nearly all trains run to Hiyoshi on a quad-tracked section of the Tōyoko Line in Yokohama, Kanagawa. Additionally, the Meguro line interoperates with the Tokyo Metro Namboku Line and Toei Mita Line beyond Meguro.
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The Saitama Railway Line is a mostly underground rapid transit line in Japan operated by the third sector operating company Saitama Railway Corporation. Funded by Saitama Prefecture, local municipal governments, and Tokyo Metro, it forms a continuation of the Tokyo Metro Namboku Line, starting at Akabane-iwabuchi Station in Tokyo and ending at Urawa-Misono Station in Saitama. The line is used as the main means of transportation to Saitama Stadium 2002. On 27 November 2015, the route was nicknamed the "Saitama Stadium Line". The line symbol used in the station numbering is "SR".
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Shirokane-takanawa Station is a subway station in Takanawa 1-chōme, Minato, Tokyo, Japan, jointly operated by the two Tokyo subway operators, Tokyo Metro and Toei Subway.
Shirokanedai Station is a subway station in Minato, Tokyo, operated jointly by the Tokyo subway operators Tokyo Metro and Tokyo Metropolitan Bureau of Transportation (Toei).
Akabane-iwabuchi Station is a subway station in Kita, Tokyo, Japan, operated jointly by the Tokyo subway operator Tokyo Metro and the third-sector railway operator Saitama Railway Corporation.
Urawa-misono Station is a passenger railway station on the Saitama Rapid Railway Line located in Midori-ku, Saitama, Saitama Prefecture, Japan, operated by the third-sector railway operator Saitama Railway Corporation.
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