Sōtetsu Main Line

The Sōtetsu Main Line (相鉄本線, Sōtetsu Honsen) is a railway line in Kanagawa Prefecture, Japan, operated by the private railway operator Sagami Railway (Sotetsu). It connects Yokohama and Ebina.

Sōtetsu Main Line
A Sōtetsu 11000 series train approaching Sagamino in October 2017
Native name相鉄本線
TypeCommuter rail
LocaleKanagawa Prefecture
Daily ridership566,657 (FY2010)[1]
OwnerSagami Railway (Sotetsu)
Line length24.6 km (15.3 mi)
Track gauge1,067 mm (3 ft 6 in)
Electrification1,500 V DC overhead catenary
Operating speed100 km/h (60 mph)
Route map
0.0 Yokohama
0.9 Hiranumabashi
1.8 Nishi-Yokohama
2.4 Tennōchō
3.3 Hoshikawa
4.3 Wadamachi
5.0 Kamihoshikawa
Yokohama Hazawa freight (JR)
Tōkaidō Main Line freight line
Bypass under construction
6.9 Nishiya
8.5 Tsurugamine
10.5 Futamatagawa
Sagami Railway Izumino Line
12.2 Kibōgaoka
13.6 Mitsukyō
15.5 Seya
17.4 Yamato
19.3 Sagami-Ōtsuka
20.5 Sagamino
21.8 Kashiwadai
Kashiwadai Depot
Sagami-Kokubu Signal
24.6 Ebina
Sagami Railway Atsugi Line (freight)


Services on the Main Line are divided into four categories. Some trains travel along the Izumino Line west of Futamatagawa to Shōnandai.

  • Local (各停) services stop at all stations. They do not travel from end to end; services are split at Futamatagawa, with trains running between Yokohama and Futamatagawa and between Futamatagawa and either Ebina or Shōnandai.
  • Rapid (快速) services stop between Yokohama and Futamatagawa at Hoshikawa and Tsurugamine, and at all stations from Futamatagawa to either Ebina or Shōnandai.
  • Express (急行) services run non-stop between Yokohama and Futamatagawa, and stop at all stations west of Futamatagawa to Ebina.
  • Limited Express (特急) services stop between Yokohama and Ebina only at Futamatagawa and Yamato or between Yokohama and Shōnandai only at Futamatagawa and Izumino.

Future developments

The Sotetsu Shin-Yokohama Line is currently under construction, linking Nishiya to Hazawa Yokohama-Kokudai, Shin-Yokohama and further to Hiyoshi on the Tōkyū Tōyoko Line. The line will allow through services to the JR Lines and Tokyu Lines towards the Tokyo Metropolis from 30 November 2019 and 2022 respectively.

With the opening of this new line, Limited Express and Rapid services will make stops at Nishiya, which facilitates transfer between services to central Yokohama and the Tokyo Metropolis.

In addition, two new service types will be implemented.[2] They are the Commuter Limited Express (通勤特急) and Commuter Express (通勤急行) services, which both operate through services from / to the Izumino Line. The former service will replace the current Limited Express on the Izumino Line, and will make additional stops at Nishiya and Tsurugamine. The latter service is a brand new service, making stops at all stations west of Nishiya.


  • Local trains stop at all stations; for all other train types, trains stop at stations marked ● and pass stations marked | .
    • R: Rapid
    • E: Express
    • L: Limited Express
No. Station Japanese Distance (km) R E L Transfers Location
Yokohama 横浜 0.0 Tokaido Main Line, Keihin-Tōhoku Line, Negishi Line, Yokosuka Line
Tōkyū Tōyoko Line
Keikyū Main Line
Yokohama City Transportation Bureau: Yokohama Municipal Subway Blue Line
Minatomirai Line
Nishi-ku, Yokohama Kanagawa Prefecture
Hiranumabashi 平沼橋 0.9  | |  |
Nishi-Yokohama 西横浜 1.8  |  |  |
Tennōchō 天王町 2.4  |  |  | Hodogaya-ku, Yokohama
Hoshikawa 星川 3.3  |  |
Wadamachi 和田町 4.3  |  |  |
Kamihoshikawa 上星川 5.0  |  |  |
Nishiya 西谷 6.9  |  | Shin-Yokohama Line
Tsurugamine 鶴ヶ峰 8.5  |  | Asahi-ku, Yokohama
Futamatagawa 二俣川 10.5 Izumino Line
Kibōgaoka 希望ヶ丘 12.2 |
Mitsukyō 三ツ境 13.6  | Seya-ku, Yokohama
Seya 瀬谷 15.5  |
Yamato 大和 17.4 Odakyu Enoshima Line Yamato
Sagami-Ōtsuka 相模大塚 19.3  |
Sagamino さがみ野 20.5 |  Ebina
Kashiwadai かしわ台 21.8  |
Ebina 海老名 24.6 Odakyu Odawara Line
Sagami Line

Rolling stock

Non-revenue-earning stock

  • 2000 series
  • ED10 electric locomotives


The line opened 12 May 1926 as the steam-operated Jinchu Railway (神中鉄道, Jinchū Tetsudō) between Futamatagawa and Atsugi (on the present-day Sagami Line).[3] The line was extended from Futamatagawa to Yokohama in December 1933, and from the former station at Sagami-Kokubu (相模国分) (now closed) in November 1941.[3]

The line became the Sagami Railway Jinchu Line (相模鉄道神中線) from 1 April 1943.[3]

Work to electrify the line commenced in June 1942, with the entire line between Yokohama and Ebina electrified by 20 September 1944.[3]

Work to double-track the line commenced in January 1957 between Yokohama and Nishi-Yokohama. The entire line was double-tracked by March 1974.[3]

The first air-conditioned trains (4-car 6000 series EMUs) were introduced on the line on 3 July 1971.[3]

10-car trains started operating on the line from 6 April 1981.[3]

Station ticket barriers were modified to allow use of the Passnet magnetic farecard from 1 October 2000.[3]

There was a short spur line which branched from Sagamino Station to the Naval Air Facility Atsugi air base. While the track remains in place up to the fence of the base, the line is no longer in use.


  1. Sagami Railway station ridership in 2010 Train Media (sourced from Sagami Railway) Retrieved May 28, 2012.
  2. "JR線との相互直通運転開始により 11月30日(土)新ダイヤでの運行を開始 特急・快速の停車駅変更、通勤特急・通勤急行を導入" [New Timetable to begin on 30 November (Saturday) with the initiation of through services to JR Lines; Changes to stopping patterns of Limited Express and Rapid services; Implementation of Commuter Limited Express and Commuter Express services] (PDF). Sotetsu. 16 July 2019.
  3. Terada, Hirokazu (July 2002). データブック日本の私鉄 [Databook: Japan's Private Railways]. Japan: Neko Publishing. p. 74/217. ISBN 4-87366-874-3.
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