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|Saitama Railway line|
|Owner||Saitama Railway Corporation|
|Locale||Tokyo, Saitama Prefecture|
|Opened||28 March 2001|
|Line length||14.6 km (9.1 mi)|
|Number of tracks||2|
|Track gauge||1,067 mm (3 ft 6 in)|
|Minimum radius||248 m|
|Electrification||1,500 V DC overhead line|
|Operating speed||80 km/h (50 mph)|
The Saitama Railway Line (埼玉高速鉄道線, Saitama Kōsoku Tetsudō sen) 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".
Most of the line is underground, only Urawa Misono Station and adjacent depots are on the surface. It connects the eastern and northern part of Kawaguchi to Tokyo; areas that were previously only served by buses.
Planning for the line stated in 1972 as an extension of the Tokyo Metro Namboku Line. The original alignment was planned to serve eastern Urawa and central Kawaguchi in Saitama. In 1985, the alignment was shifted east to Hatogaya. In 1992, the third sector Saitama Railway Corporation was established by Saitama Prefecture, and construction began in 1995. The line opened on 28 March 2001, ahead of the 2002 FIFA World Cup, which held several matches at the Saitama Stadium, half an hour on foot from the terminating Urawa-Misono Station.
The total cost of construction is 256.1 billion yen, making the cost per kilometer at 17.5 billion yen. Since its opening, the line used six-car trains with all stations (except Urawa-Misono Station) equipped with platforms long enough support future expansion into eight-car trains. Urawa-Misono Station was built as a temporary terminal as the line was planned to be extended further north in the future so it only has platforms long enough for six car trains.
A further northern extension beyond Urawa Misono Station connecting Iwatsuki Station of the Tobu Urban Park Line and Hasuda Station of the JR Utsunomiya Line (Tohoku Line) is currently being proposed.
|↑ Through-running to/from ↑|
|-||Akabane-iwabuchi||赤羽岩淵||0.0||Namboku Line (N-19)||Kita||Tokyo|
- Tokyo Metro 9000 series 6-car EMUs
- Tokyu 3000 series 8-car EMUs
- Tokyu 3020 series 8-car EMUs
- Tokyu 5080 series 8-car EMUs
- Saitama Rapid Railway 2000 series 6-car EMUs
- Sotetsu 21000 series 8-car EMUs
As of 2013, the main shareholders in Saitama Railway Corporation are as follows.
|City of Kawaguchi||18.7|
|City of Saitama||7.1|
Ridership figures for the line are as follows.
|Fiscal year||Total passengers||Passengers/km day|
The entire line from Akabane-Iwabuchi to Urawa-Misono opened on 28 March 2001.
On 1 April 2022, eight-car trains began operating on the line.
Effective the timetable revision on 18 March 2023, the Sotetsu Shin-Yokohama Line and Tokyu Shin-Yokohama Line began revenue service. Most through services originating from Urawa-Misono continuing onto the Sotetsu Line terminate at either Shin-Yokohama Station or Ebina Station.
In the future, the line may be extended north from Urawa-Misono through Iwatsuki-ku, Saitama to Hasuda Station (in Hasuda, Saitama) on the JR East Utsunomiya Line, but financial problems have prevented construction of the extension.
- Terada, Hirokazu (19 January 2013). データブック日本の私鉄 [Databook: Japan's Private Railways]. Japan: Neko Publishing. p. 56. ISBN 978-4-7770-1336-4.
- 東急目黒線・東京メトロ南北線・埼玉高速鉄道線で8両編成の運転開始 [8-car trains begin operating on the Tokyu Meguro Line, Tokyo Metro Namboku Line, and Saitama Rapid Railway Line]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2022-04-09. Retrieved 2022-05-27.
- "2023年3月18日（土）相鉄新横浜線※1・東急新横浜線開業に伴い形成される 広域鉄道ネットワークの直通運転形態および主な所要時間について（情報再掲：2022年12月16日発表内容）" [About the through operation and required time of the railway network formed with the opening of the Sotetsu and Tokyu Shin-Yokohama Line]. s-rail.co.jp (in Japanese). Retrieved 29 March 2023.