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From Wikipedia, the free encyclopedia

Saikyō Line
JA
Saikyō Line E233 series EMU set 127 approaching Kita-Yono Station in June 2021
Overview
Native name埼京線
OwnerLogo of the East Japan Railway Company (JR East) JR East
LocaleTokyo, Saitama prefectures
Termini
Stations19
Service
TypeCommuter rail
Depot(s)Kawagoe (Minami-Furuya)
Rolling stockE233-7000 series, TWR 70-000 series , Sotetsu 12000 series EMUs
Daily ridership1,105,557 (daily 2015)[1]
History
Opened30 September 1985; 38 years ago (1985-09-30) (AkabaneŌmiya section)
Technical
Line length36.9 km (22.9 mi)
Number of tracksDouble-track
Track gauge1,067 mm (3 ft 6 in)
Electrification1,500 V DC (overhead catenary)
Operating speed100 km/h (60 mph)
SignallingAutomatic closed block (OsakiIkebukuro),
Moving block (Ikebukuro–Ōmiya)
Train protection systemATS-P (Osaki–Ikebukuro),
ATACS (IKebukuro–Ōmiya)
Route map

The Saikyō Line (Japanese: 埼京線, romanizedSaikyō-sen) is a Japanese railway line operated by the East Japan Railway Company (JR East). It connects Ōsaki Station in Shinagawa, Tokyo, and Ōmiya Station in Saitama Prefecture. The line's name is a portmanteau of the two areas the line connects: Saitama (Japanese: ) and Tōkyō (Japanese: ).

At the northern end of the line, some trains continue beyond Ōmiya as far as Kawagoe on the Kawagoe Line; at the southern end of the line, many Saikyō Line trains continue onward beyond Ōsaki to either Shin-Kiba on the Rinkai Line (operated by Tokyo Waterfront Area Rapid Transit) or Ebina on the Sotetsu Main Line (via the Sōtetsu Shin-Yokohama Line). Moreover, despite the line’s name, some trains only go between Kanagawa and Shinjuku, without continuing to Saitama. Beside the link that connects the Saikyō and Rinkai lines is the JR East Tokyo General Rolling Stock Centre that stores the rolling stock for the Yamanote Line and other types of rolling stock; and the Hinkaku Line which links Saikyo Line to the Tokaido Freight Line and Sotetsu-JR Link Line.

Basic data

  • Operator: East Japan Railway Company (JR East) (Services and tracks)
    • Ōsaki – Ikebukuro – Akabane – Musashi-Urawa – Ōmiya: 36.9 km (22.9 mi)
      • Ōsaki – Ikebukuro: 13.4 km (8.3 mi) (Yamanote Line freight line)
      • Ikebukuro – Akabane: 5.5 km (3.4 mi) (Akabane Line)
      • Akabane – Musashi-Urawa – Ōmiya: 18.0 km (11.2 mi) (Tōhoku Main Line branch)
  • Double-tracking: Entire line
  • Railway signalling:
  • Maximum speed:
    • Akabane – Ōmiya: 100 km/h (62 mph)
    • Itabashi – Akabane: 90 km/h (56 mph)
    • All other sections: 95 km/h (59 mph)
Saikyo Line stations

Route

The line runs parallel to the Yamanote Line between Ōsaki and Ikebukuro, where it is formally called the Yamanote Freight Line (Japanese: 山手貨物線), and as an alternate route to the Tōhoku Main Line between Akabane and Ōmiya, where it is unofficially called the Tohoku Honsen Secondary Line(Japanese: 東北本線支線). The portion between Ikebukuro and Akabane is officially known as the Akabane Line (Japanese: 赤羽線). For most purposes, JR refers to all of these as part of the "Saikyō Line" when being used for Saikyō Line services.[2]

Service

There are three types of trains on the Saikyō Line: "Local" (各駅停車, Kakueki-Teisha), "Rapid" (快速, kaisoku), and "Commuter Rapid" (通勤快速, tsūkin kaisoku). Between Akabane and Musashi-Urawa, Rapid trains stop only at Toda-Kōen, while Commuter Rapid trains, which run during rush hours, stop only at Musashi-Urawa between Akabane and Ōmiya. Between Akabane and Ikebukuro, as well as on the Kawagoe and Rinkai lines, all trains stop at all stations. Between Ikebukuro and Osaki on the Yamanote Freight Line, all trains run limited-stop in both directions, with the Yamanote Line providing all-stations service.[3]

Station list

  • Local trains stop at all stations.
  • Rapid and commuter rapid trains stop at stations marked "●" and pass those marked "|".
Line
name
No. Station Japanese Distance (km) Rapid Comm.
Rapid
Transfers Location
Between
stations
Total
Through service to Shin-Kiba via the R Rinkai Line

Through service to Ebina via the Sōtetsu Shin-Yokohama Line and JS Shōnan-Shinjuku Line

Yamanote Line
OSKJA08
Ōsaki 大崎 - from
Shinagawa

2.0
from
Ōsaki

0.0
Shinagawa Tokyo
EBSJA09
Ebisu 恵比寿 3.6 5.6 3.6 Shibuya
SBYJA10
Shibuya 渋谷[a] 1.6 7.2 5.2
SJKJA11
Shinjuku 新宿 3.4 10.6 8.6
Shinjuku
IKBJA12
Ikebukuro 池袋 4.8 15.4 13.4 Toshima
Akabane Line from
Ikebukuro

0.0
JA13 Itabashi 板橋 1.8 1.8 15.2 I Toei Mita Line (Shin-Itabashi: I-17)
TJ Tobu Tojo Line (Shimo-Itabashi)
Itabashi
JA14 Jūjō 十条 1.7 3.5 16.9   Kita
ABNJA15
Akabane 赤羽 2.0 5.5 18.9
Tohoku Main Line (branch) from
Akabane

0.0
JA16 Kita-Akabane 北赤羽 1.5 1.5 20.4  
JA17 Ukima-Funado 浮間舟渡 1.6 3.1 22.0  
JA18 Toda-Kōen 戸田公園 2.4 5.5 24.4   Toda Saitama
JA19 Toda 戸田 1.3 6.8 25.7  
JA20 Kita-Toda 北戸田 1.4 8.2 27.1  
JA21 Musashi-Urawa 武蔵浦和 2.4 10.6 29.5 JM Musashino Line Minami-ku, Saitama
JA22 Naka-Urawa 中浦和 1.2 11.8 30.7  
JA23 Minami-Yono 南与野 1.7 13.5 32.4   Chūō-ku, Saitama
JA24 Yonohommachi 与野本町 1.6 15.1 34.0  
JA25 Kita-Yono 北与野 1.1 16.2 35.1  
OMYJA26
Ōmiya 大宮[b] 1.8 18.0 36.9 Ōmiya-ku, Saitama
Through service to Kawagoe on the Kawagoe Line

Rolling stock

Per 30 November 2019 schedule change, services on the Saikyo Line, Kawagoe Line, Rinkai Line, and Sōtetsu Main Line are operated by a fleet of 38 10-car E233-7000 series electric multiple unit (EMU) trains owned by JR East and based at Kawagoe Depot, 10-car TWR 70-000 series EMU trains owned by Tokyo Waterfront Area Rapid Transit and based at Yashio Depot; and 5 sets of Sotetsu 12000 series owned by Sagami Railway and based at Kashiwadai Vehicle Center.[4][verification needed] The first E233-7000 series trains were delivered in March 2013, entering revenue service from 1 June 2013, gradually displacing the 205 series sets used since 1 July 1989.[4] As of October 2016, all Saikyo Line 205 series sets have been removed from service.[5] With the opening of the Sotetsu-JR Link Line, Sotetsu 12000 series trains begin traveling through to Saikyo Line (via Shonan-Shinjuku Line).

Before the establishment of the Saikyo Line, rolling stock used on the Akabane Line included:

History

The Akabane Line opened on 1 March 1885 as a segment of the Nippon Railway Shinagawa Line. The company was nationalized in 1906. Electric services on the line began in 1909. From 1972 to 1985, the line was the known as the Akabane Line after being a branch of Yamanote Line.

Before the Saikyo Line, there were several attempts to improve commuter rail service between Saitama and Tokyo. One of the earliest, the Tokyo-Ōmiya Electric Railway (東京大宮電気鉄道, Tōkyō-Ōmiya Denki Tetsudō), was founded in 1928 but went bankrupt shortly thereafter due to rising land values in the area. Later, in 1968, the Tokyo Metropolitan Board of Transportation proposed to run the new Toei Mita Line to central Ōmiya.

Development of the Saikyo Line began as a Japanese National Railways effort to quell unrest in Saitama regarding the expansion of the Tohoku and Joetsu Shinkansen. During the mid-1970s, local protesters staged sit-ins, demonstrations, and administrative actions to impede the building of the new high-speed lines north of Tokyo. JNR reached a settlement with the activists under which it would build a commuter line to serve these local communities, while being allowed to continue extending the Shinkansen.

The new line, tentatively called the "New Commuter Line" (通勤新線, Tsūkin Shinsen), was built between Ōmiya and Akabane. Through service to Ikebukuro via the existing Akabane Line began on 30 September 1985. The Akabane Line name disappeared from daily use from this time. The Saikyo Line was initially troubled by inadequate train control systems which could not keep pace with its frequency of service; however, these issues were worked out during the first month of service.

When the Tōhoku Main Line portion of the Saikyō Line was being built, the stations from Kita-Akabane to Kita-Yono were designated with numbers from 1 to 10; Kita-Akabane Station was known as "New Commuter Line Station No. 1". However, even after names were assigned, passengers complained that each station looked just like the next due to their identical construction. As a result, JNR, in an unusual move, assigned colors to those stations so that they could be told apart from one another.

Saikyo Line and Tohoku Shinkansen

On 3 March 1986, the Saikyo Line began through service to Shinjuku via the Yamanote Freight Line, which had seen less use by freight services since the opening of the Musashino Line in 1973.[3] Freight services on the former Akabane Line ended in 1999. Services southward to Shibuya and Ebisu did not begin until 16 March 1996, when new platforms were completed to accommodate passenger service.[3] Through services to Ōsaki and the Rinkai Line began on 1 December 2002.[3]

The Saikyo Line has had a particularly severe problem of overcrowding during peak periods, especially during weekday mornings. The opening of the Shonan-Shinjuku Line in 2004 and the Tokyo Metro Fukutoshin Line in 2008, both of which parallel the Saikyō Line for part of its route, alleviated some of the worst crowding. Problems resulting from overcrowding have included a higher incidence of groping, as well as delays in train schedule caused by longer time taken at each station to pick up and drop off passengers. The Saikyō Line was notorious for having the highest reported number of groping-related incidents (known as chikan incidents) in the Greater Tokyo area.[6] This problem was directly addressed by introducing women-only passenger cars during rush hours, and indirectly addressed by reducing overcrowding problems as a whole.

On 20 August 2016, station numbering was introduced with stations being assigned station numbers between JA08 and JA26.[7][8] Numbers increase towards in the northbound direction towards Omiya.

Beginning 30 November 2019, some Saikyo Line trains travel through to Ebina via the Shonan-Shinjuku Line and the Sotetsu JR-Link Line. In the westbound direction (Omiya to Shinjuku, Osaki, and Ebina), Saikyo Line trains enter the Hinkaku Line after Osaki, stopping at Nishi-Oi and Musashi-Kosugi. After Musashi-Kosugi, trains enter the Tokaido Freight Line track. Near Hazawa Yokohama-Kokudai, the train enters the Sotetsu-JR Link Line.

References

  1. ^ "平成27年 大都市交通センサス 首都圏報告書" (PDF). P.92. 国土交通省.
  2. ^ JR Timetable, December 2008 issue
  3. ^ a b c d 首都圏鉄道完全ガイド 主要JR路線編 [Tokyo Area Complete Railway Guide - Major JR Lines]. Japan: Futabasha. 6 December 2013. pp. 75–86. ISBN 978-4-575-45414-7.
  4. ^ a b Saka, Masahiro (October 2015). 埼京線・川越線・八高線・相模線車両の変遷 [Rolling stock transitions on the Saikyo/Kawagoe/Hachiko/Sagami Lines]. Tetsudō Daiya Jōhō Magazine (in Japanese). Vol. 44, no. 378. Japan: Kōtsū Shimbun. pp. 18–27.
  5. ^ JR車両ファイル2016 [JR Rolling Stock File 2016]. Japan Railfan Magazine (in Japanese). Vol. 56, no. 663. Japan: Koyusha Co., Ltd. July 2016. p. 34.
  6. ^ "Worst for Chikan in Tokyo is Saikyo Line" Yomiuri Shimbun, 2005-02-08, retrieved 2006-06-19
  7. ^ "⾸都圏エリアへ 「駅ナンバリング」を導⼊します" [Introduce “station numbering” to the Tokyo metropolitan area] (PDF). jreast.co.jp (in Japanese). 6 April 2016. Archived from the original (PDF) on 7 December 2022. Retrieved 7 January 2023.
  8. ^ Kusamachi, Yoshikazu (7 April 2016). "JA・JK・JT・AKB…JR東日本、首都圏で駅ナンバリングなど導入へ" [JA, JK, JT, AKB … JR East to introduce station numbering in the Tokyo metropolitan area]. Response Automotive Media (in Japanese). Archived from the original on 6 August 2022. Retrieved 7 January 2023.

Notes

  1. ^ The platform of the Saikyo Line and Shonan Shinjuku Line, until 2020, was quite far from the Yamanote Line platform, and thus was ridiculed as "Minami Shibuya Station" (Japanese: 南渋谷駅, Hepburn: Minami-Shibuya-eki, means South Shibuya Station).
  2. ^ There are many trains that run directly from here to Kawagoe on the Kawagoe Line.

Further reading

  • Osano, Kagetoshi (October 2015). 埼京線 その歴史とあらまし [History and overview of the Saikyo Line]. Tetsudō Daiya Jōhō Magazine (in Japanese). Vol. 44, no. 378. Japan: Kōtsū Shimbun. pp. 10–17.

External links

This page was last edited on 18 February 2024, at 22:29
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