Toei Shinjuku Line

Not to be confused with the Seibu Shinjuku Line.

The Toei Shinjuku Line (都営地下鉄新宿線, Toei Chikatetsu Shinjuku-sen) is a rapid transit line in Tokyo and Chiba Prefecture, Japan, operated by the municipal Toei Subway. The line runs between Motoyawata in Ichikawa, Chiba in the east and Shinjuku in the west. At Shinjuku, most trains continue as through services to Sasazuka on the Keiō New Line, with some services continuing to Hashimoto in Sagamihara, Kanagawa via the Keiō Line and the Keiō Sagamihara Line.

Toei Shinjuku Line
A Toei Shinjuku Line 10-300 series train
Overview
Other name(s)	S
Native name	新宿線
Owner	Toei Subway
Line number	10
Locale	Tokyo, Chiba prefectures
Termini	Shinjuku Motoyawata
Stations	21
Color on map	Lime Green (#B0C124)
Service
Type	Rapid transit
System	Tokyo subway
Operator(s)	Toei Subway
Depot(s)	Ōjima
Rolling stock	Toei 10-300 series Keio 9000 series Keio 5000 series
Daily ridership	745,889 (2016)[1]
History
Opened	21 December 1978; 46 years ago (21 December 1978)
Technical
Line length	23.5 km (14.6 mi)
Number of tracks	Double-track
Track gauge	1,372 mm (4 ft 6 in)
Minimum radius	167 m (548 ft) (Between Jimbōchō and Ogawamachi)
Electrification	1,500 V DC (overhead line)
Operating speed	75 km/h (47 mph)
Signalling	Cab signalling, closed block
Train protection system	JR East D-ATC
Maximum incline	3.5%
Route map Legend Through to Keio Line Keio New Line E Ōedo Line │ M Marunouchi Line Shinjuku-nishiguchi E Ōedo Line S01 0.0 Shinjuku KOOH Keio Line Odakyu Odawara Line JYJB Yamanote Line Chūō–Sōbu Line JCJA Chūō Line (Rapid) Saikyō Line Seibu Shinjuku Line S02 0.8 Shinjuku-sanchōme F Fukutoshin Line M Marunouchi Line S03 2.3 Akebonobashi S04 3.7 Ichigaya N Namboku Line Y Yūrakuchō Line JB Chūō– Sōbu Z Hanzōmon Line S05 5.0 Kudanshita T Tozai Line S06 5.6 Jimbocho I Mita Line Z Hanzōmon Line M Marunouchi Line Ochanomizu JCJB Chūō–Sōbu Line Chūō Line (Rapid) Shin-ochanomizu C Chiyoda Line S07 6.5 Ogawamachi Awajicho M Marunouchi Line JC Chūō Line (Rapid) Akihabara JYJKJB Yamanote, Keihin–Tōhoku and Chūō–Sōbu lines Tsukuba Express S08 7.3 Iwamotocho H Hibiya Line (at Akihabara) JB Sōbu Line (Rapid) Chūō–Sōbu Line Bakurochō S09 8.1 Bakuro-yokoyama Higashi-nihombashi A Asakusa Line S10 8.7 Hamachō S11 9.5 Morishita E Ōedo Line S12 10.3 Kikukawa S13 11.2 Sumiyoshi Z Hanzōmon Line S14 12.2 Nishi-ōjima S15 12.9 Ōjima Ōjima Depot S16 14.1 Higashi-ōjima Arakawa River S17 15.8 Funabori S18 17.5 Ichinoe S19 19.2 Mizue S20 20.7 Shinozaki JB JR Chūō-Sōbu Line S21 23.5 Motoyawata Keisei Yawata KS Keisei Main Line

On maps and signboards, the line is shown in the color leaf green. Stations carry the letter "S" followed by a two-digit number inside a yellow-green chartreuse circle.

In fiscal year 2023, the Shinjuku Line was Toei's third most profitable line, earning 6.25 billion yen in surplus. It served 704,235 passengers on average per day, the second highest in the Toei network (after the Oedo Line).^[2]

Basic data

• Double-tracking: Entire line
• Railway signalling: D-ATC

Overview

Unlike all other Tokyo subway lines, which were built to 1,435 mm (4 ft 8+1⁄2 in) or 1,067 mm (3 ft 6 in) gauges, the Shinjuku line was built with a track gauge of 1,372 mm (4 ft 6 in) to allow through operations onto the Keiō network. The line was planned as Line 10 according to reports of a committee of the former Ministry of Transportation; thus the rarely used official name of the line is the "Number 10 Shinjuku Line" (10号線新宿線, Jū-gō-sen Shinjuku-sen).^[3]

According to the Tokyo Metropolitan Bureau of Transportation, as of June 2009 the Shinjuku Line was the third most crowded subway line in Tokyo, at its peak running at 181%^[a] capacity between Nishi-ōjima and Sumiyoshi stations.^[4]

It is the only Toei line to run outside Tokyo, and one of only two Tokyo subway lines to run into Chiba Prefecture, the other being the Tokyo Metro Tozai Line. The Tokyo Metro Yūrakuchō Line and the Tokyo Metro Fukutoshin Line are the only other subway lines to run beyond Tokyo, with their shared northern terminus at Wakōshi Station in Saitama Prefecture. However, all lines that have through services contain at least one route beyond Tokyo.

Station list

• Express trains stop at stations marked with a circle (●), while local trains make all stops.
• Express trains run between Motoyawata Station and Hashimoto Station on the Keiō Sagamihara Line via the Keio Main Line and Keio New Line. Express trains only run during peak hours; westbound in the mornings and eastbound in the evenings.
• On weekends and holidays, two trains run through to Takaosanguchi Station on the Keiō Takao Line and one runs through to Tama-Dōbutsukōen Station on the Keiō Dōbutsuen Line.

No.	Station	Japanese	Distance (km)		Express	Transfers	Location
			Between stations	From S-01
Through-running to/from Keiō-hachiōji, Hashimoto, and Takaosanguchi via the Keiō Line, Keiō New Line, Keio Sagamihara Line, and Keiō Takao Line
S01	Shinjuku[* 1]	新宿	-	0.0	●	M Marunouchi Line (M-08) E Ōedo Line (E-27) JC Chūō Line (Rapid) JB JR Chūō-Sōbu Line JY JR Yamanote Line JA JR Saikyō Line JS Shōnan-Shinjuku Line OH Odakyū Odawara Line KO Keiō Line, Keiō New Line Seibu Shinjuku Line (Seibu-Shinjuku: SS-01)	Shinjuku	Tokyo
S02	Shinjuku-sanchome	新宿三丁目	0.8	0.8	｜	M Marunouchi Line (M-09) F Fukutoshin Line (F-13)
S03	Akebonobashi	曙橋	1.5	2.3	｜
S04	Ichigaya	市ヶ谷	1.4	3.7	●	Y Yūrakuchō Line (Y-14) N Namboku Line (N-09) JB Chūō-Sōbu Line	Chiyoda
S05	Kudanshita	九段下	1.3	5.0	｜	Z Hanzōmon Line (Z-06) T Tozai Line (T-07)
S06	Jimbocho	神保町	0.6	5.6	●	I Mita Line (I-10) Z Hanzōmon Line (Z-07)
S07	Ogawamachi	小川町	0.9	6.5	｜	G Ginza Line (Kanda: G-13) M Marunouchi Line (Awajicho: M-19) C Chiyoda Line (Shin-ochanomizu: C-12)
S08	Iwamotocho	岩本町	0.8	7.3	｜	H Hibiya Line (Akihabara: H-16) JB Chūō-Sōbu Line (Akihabara) JY Yamanote Line (Akihabara) JK Keihin-Tōhoku Line (Akihabara) Tsukuba Express (Akihabara: 01)
S09	Bakuro-yokoyama	馬喰横山	0.8	8.1	●	A Asakusa Line (Higashi-nihombashi: A-15) JO Sōbu Line (Rapid) (Bakurochō)	Chūō
S10	Hamacho	浜町	0.6	8.7	｜
S11	Morishita	森下	0.8	9.5	●	E Ōedo Line (E-13)	Kōtō
S12	Kikukawa	菊川	0.8	10.3	｜		Sumida
S13	Sumiyoshi	住吉	0.9	11.2	｜	Z Hanzōmon Line (Z-12)	Kōtō
S14	Nishi-ojima	西大島	1.0	12.2	｜
S15	Ojima	大島	0.7	12.9	●
S16	Higashi-ojima	東大島	1.2	14.1	｜
S17	Funabori	船堀	1.7	15.8	●		Edogawa
S18	Ichinoe	一之江	1.7	17.5	｜
S19	Mizue	瑞江	1.7	19.2	｜
S20	Shinozaki	篠崎	1.5	20.7	｜
S21	Moto-Yawata	本八幡	2.8	23.5	●	JB Chūō-Sōbu Line KS Keisei Main Line (Keisei Yawata)	Ichikawa, Chiba

1. Shinjuku Station is shared with and administered by Keio Corporation.

Rolling stock

The Toei Shinjuku Line is served by the following types of 10-car EMUs. Until 11 August 2022, the line was also served by 8-car trains.^[5]

Current

• Toei 10-300 series
• Keio 5000 series^[6]
• Keio 9000 series

• 
  Toei 10-300 series EMU
• 
  Keio 9000 series EMU
• 
  Keio 5000 series EMU

Former

• Toei 10-300R series (until 2017)
• Toei 10-000 series (until 2018)
• Keio 6000 series (until 2011)

History

• 21 December 1978: Iwamotochō – Higashi-ōjima section opens.
• 16 March 1980: Shinjuku – Iwamotochō section opens; through service onto Keiō lines begins.
• 23 December 1983: Higashi-ōjima – Funabori section opens.
• 14 September 1986: Funabori – Shinozaki section opens.
• 19 March 1989: Shinozaki – Motoyawata section opens, entire line completed.

Notes

a. ^ Crowding levels defined by the Ministry of Land, Infrastructure, Transport and Tourism:^[7][8]

100% — Commuters have enough personal space and are able to 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.