Toei Mita Line

Last updated

Mita Line
Toei Mita line symbol.svg
Toei Series6500-6505.jpg
A Toei 6500 series train at Tamagawa Station
Overview
Other name(s)I
Native name三田線
Owner Symbol of Tokyo Metropolis.svg Toei Subway
Line number6
Locale Tokyo
Termini
Stations27
Color on map     Blue (#006CB6)
Service
Type Rapid transit
System Tokyo subway
Operator(s)Toei Subway
Depot(s)Shimura
Rolling stock Toei 6300 series
Toei 6500 series
Tokyu 3000 series
Tokyu 3020 series
Tokyu 5080 series
Sotetsu 21000 series
Daily ridership638,365 (2016) [1]
History
Opened27 December 1968;55 years ago (27 December 1968)
Technical
Line length26.5 km (16.5 mi)
Track gauge 1,067 mm (3 ft 6 in)
Minimum radius 160 m (520 ft) (Shirokanedai - Shirokane-Takanawa )
161 m (528 ft) (Shirokane-Takanawa - Mita)
Electrification 1,500 V DC (overhead line)
Operating speed75 km/h (47 mph)
Signalling Cab signalling, closed block
Train protection system New CS-ATC
Maximum incline 3.5%
Route map
Toei Mita Line.png

The Toei Mita Line (都営地下鉄三田線, Toei Chikatetsu Mita-sen) is a subway line of the Tokyo Metropolitan Bureau of Transportation (Toei) network in Tokyo, Japan. The line runs between Nishi-Takashimadaira in Itabashi and Meguro in Shinagawa. Trains continue with direct service into the Meguro Line of Tokyu Corporation for Hiyoshi. The portion between Shirokane-Takanawa and Meguro is shared with the Tokyo Metro Namboku Line.

Contents

The line was named after the Mita district in Minato, Tokyo, under which it passes. On maps and signboards, the line is shown in blue. Stations carry the letter "I" followed by a two-digit number.

Overview

Platforms on the Mita Line are equipped with chest-height automatic platform gates that open in sync with the train doors. The line was the first in the Tokyo subway system to have low barriers. The Tokyo Metro Namboku Line has used full-height platform screen doors since its opening. As of April 2022, the platform doors have been fully replaced for 8 car operations

The right-of-way and stations between Shirokane-Takanawa and Meguro are shared with the Tokyo Metro Namboku Line - a unique situation on the Tokyo subway where both operators share common infrastructure. Under an agreement of both parties, the fare for this section is calculated on the Toei system for passengers travelling to stations on the Mita Line past Shirokane-Takanawa, using the Tokyo Metro system for those travelling on the Namboku Line past Shirokane-Takanawa, and on the system "most beneficial to the passenger" (presently the Tokyo Metro schedule) for travel solely on the shared section.

According to the Tokyo Metropolitan Bureau of Transportation, as of June 2009, the Mita Line is the ninth most crowded subway line in Tokyo, running at 164% [a] capacity between Nishi-Sugamo and Sugamo stations. [2]

Line diagram MitaLineSign.png
Line diagram

Station list

All stations are located in Tokyo.

No.StationJapaneseDistance (km)TransfersLocation
Between
stations
From I-01
Through-running to/from ↑

MG Tōkyū Meguro Line for Hiyoshi

SH Tōkyū Shin-Yokohama Line for Shin Yokohama

SOTETSU logomark.svg Sōtetsu Main Line for Ebina SOTETSU logomark.svg Sōtetsu Izumino Line for Shōnandai (via Futamata-gawa on the Sōtetsu Main Line)

I01 Meguro 目黒 [* 1] -0.0
Shinagawa
I02 Shirokanedai 白金台 [* 2] 1.31.3N Tokyo Metro Namboku Line (N-02) (shared) Minato
I03 Shirokane-takanawa 白金高輪 [* 2] 1.02.3N Namboku Line (N-03) (shared)
I04 Mita 三田1.74.0
I05 Shibakoen 芝公園0.64.6 
I06 Onarimon 御成門0.75.3 
I07 Uchisaiwaicho 内幸町1.16.4  Chiyoda
I08 Hibiya 日比谷0.97.3
I09 Ōtemachi 大手町0.98.2
I10 Jimbocho 神保町1.49.6
I11 Suidobashi 水道橋1.010.6JB Chūō-Sōbu Line Bunkyō
I12 Kasuga 春日0.711.3
I13 Hakusan 白山1.412.7 
I14 Sengoku 千石1.013.7 
I15 Sugamo 巣鴨0.914.6JY Yamanote Line Toshima
I16 Nishi-sugamo 西巣鴨1.416.0 Tokyo Sakura Tram symbol.svg Toden Arakawa Line (Shin-koshinzuka)
I17 Shin-itabashi 新板橋1.017.0JA Saikyō Line (Itabashi Station) Itabashi
I18 Itabashikuyakushomae 板橋区役所前0.917.9 
I19 Itabashihoncho 板橋本町1.219.1 
I20 Motohasunuma 本蓮沼0.920.0 
I21 Shimura-sakaue 志村坂上1.121.1 
I22 Shimura-sanchome 志村三丁目0.922.0 
I23 Hasune 蓮根1.223.2 
I24 Nishidai 西台0.824.0 
I25 Takashimadaira 高島平1.025.0 
I26 Shin-takashimadaira 新高島平0.725.7 
I27 Nishi-takashimadaira 西高島平0.826.5 
  1. Meguro is shared by Toei, Tokyo Metro, and Tokyu Corporation; Tokyu Corporation manages the station.
  2. 1 2 Shirokanedai and Shirokane-Takanawa are shared by Toei and Tokyo Metro; Tokyo Metro manages both stations.

Rolling stock

6300 series (left and right) and Tokyu 5080 series (center) at Shimura depot Shimurasyaryoukensyuujyou.jpg
6300 series (left and right) and Tokyu 5080 series (center) at Shimura depot

Present

Former rolling stock

6000 series between Shin-Takashimadaira and Nishi-Takashimadaira, February 1999 Toei6121 2.jpg
6000 series between Shin-Takashimadaira and Nishi-Takashimadaira, February 1999


Maintenance facilities

History

The Mita Line was first envisioned in 1957 as a northern branch of Line 5 (the present Tōzai Line), serving the section between Ōtemachi and Itabashi. Under a revised proposal in 1962, the line was made independent and its construction was undertaken by the Tokyo Metropolitan Government. The new line (Line 6) was planned to run from Gotanda Station on the southwestern side of the Yamanote Line through central Tokyo, with its northern extensions via Yamatochō (大和町) in Itabashi (near present Itabashi-honchō ), diverting to Kami-Itabashi and Shimura (志村) (present Takashimadaira). The southernmost portion, from Sengakuji to Nishi-Magome and Nishi-Magome depot, was to be shared with Line 1 (Asakusa Line); therefore, Line 6 would be 1,435 mm (4 ft 8+12 in) gauge.

Due to political considerations, the design of the Mita Line changed several times during the early 1960s. There were plans for it to run to Toda, Saitama, to serve a boat-racing venue for the 1964 Summer Olympics. The government of Saitama also proposed the construction of a new subway line which would allow through service on the Mita Line as far as Ōmiya Station. In 1964, these plans were changed to allow the Mita Line to connect with the Tōbu Tōjō Line via a branch to be built by Tobu between Yamatomachi (大和町) (now Wakōshi), and Shimura, the northern end of Line 6. At the southern end, the junction with the Tokyu network would be via a connecting line, which would be constructed by Tokyu from Sengakuji to Kirigaya (桐ヶ谷) on the Tōkyū Ikegami Line; the route would continue to the then-Den-en-toshi Line and finally west, down to Nagatsuta. As a result, the construction standards of Line 6 were based on those of Tobu and Tokyu (such as 1,067 mm (3 ft 6 in) gauge track and 20-meter-long cars - today, the Mita Line is the only Toei line to use this gauge). A depot was planned at Shimura, independent of the Nishi-Magome depot on Line 1.

However, both Tokyu and Tobu decided the following year to operate their thorough services with the Teito Rapid Transit Authority (TRTA, now Tokyo Metro) lines instead. With no thorough service opportunities available the Tokyo Metropolitan Government began construction on the central portion of the line, leaving the plans for the Itabashi and Mita ends open for future development. This required an extension somewhere south of Seishōkō-mae (清正公前) (present Shirokane-Takanawa ), probably to the then-Mekama Line of Tokyu (on the commencement of inter running to Mita and Namboku lines, the Mekama Line was divided into the Meguro Line and Tōkyū Tamagawa Line) which competed with TRTA Line 7, later called the Tokyo Metro Namboku Line.

The first segment of the line opened on 27 December 1968, between Sugamo and Takashimadaira (10.4 hm (0.65 mi)). The line was extended a further 7.3 km (4.5 mi) south to Hibiya on 30 June 1972, and 3.3 km (2.1 mi) further south to Mita on 27 November 1973. The northern 1.3 km (0.81 mi) extension (originally licensed to Tobu and later transferred to Toei Subway) was completed on 6 May 1976. For the next 24 years, the line operated between Mita and Nishi-Takashimadaira; the authorized Mita and Sengakuji section had been left uncompleted.

In 1985 the then-Ministry of Transport finally settled the plan regarding the southern extension of the line and shelved all plans for further extension to the north due to the development of the Saikyō Line. On 26 September 2000, the final 4 km segment from Mita to Meguro opened, [6] and through service to the Meguro Line of Tokyu began at the same time, at which point the line switched to driver-only operation.

By the end of 2020, all platform screen doors on the Mita Line were extended to accommodate 8 cars in preparation of the Sōtetsu Tōkyū Link Line through service from the Sotetsu Line. [7]

Mita Line through services to and from the Sotetsu Line began operation on 18 March 2023. [7] [8] Effective this date, the Mita Line provides through services as far south as Ebina on the Sotetsu Main Line and Shonandai on the Sotetsu Izumino Line, with a fraction of trips turning around at Shin-Yokohama Station. Most local services still make it as far south as Hiyoshi on the Tokyu Toyoko Line with some peak hour trips terminating at Musashi-Kosugi (also on the Toyoko Line).

Notes

a. ^ Crowding levels defined by the Ministry of Land, Infrastructure, Transport and Tourism: [9] [10]

100% — Commuters have enough personal space and can take a seat or stand while holding onto the straps or hand rails.
150% — Commuters have enough personal space to read a newspaper.
180% — Commuters must fold newspapers to read.
200% — Commuters are pressed against each other in each compartment but can still read small magazines.
250% — Commuters are pressed against each other, unable to move.

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References

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  2. Metropolis , "Commute", June 12, 2009, p. 07. Capacity is defined as all passengers having a seat or a strap or door railing to hold on to.
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  5. Kinoshita, Kenji (2 September 2021). "相鉄21000系「東急線内は目黒線直通用」9月デビュー! グッズも発売" [Sotetsu 21000 series to debut in September!]. Mynavi News (in Japanese). Retrieved 25 March 2022.
  6. "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". tokyometro.go.jp. 30 August 2000. Archived from the original on 17 December 2003. Retrieved 29 January 2024.
  7. 1 2 "東急目黒線・東京メトロ南北線・埼玉高速鉄道,4月上旬から順次8両編成での運転を開始" [Tokyu Meguro Line, Tokyo Metro Namboku Line, Saitama Kosoku Railway, starting operation with 8-car train from early April]. Japan Railfan Magazine Online. 27 January 2022. Retrieved 20 March 2023.
  8. "相模鉄道,3月18日にダイヤ改正を実施" [Sagami Railway implements timetable revision on March 18]. Japan Railfan Magazine Online (in Japanese). Archived from the original on 17 December 2022. Retrieved 20 March 2023.
  9. "混雑率の推移".
  10. Kikuchi, Daisuke (6 July 2017). "Tokyo plans new effort to ease commuter hell on rush-hour trains". The Japan Times . Archived from the original on 6 July 2017.