Seibu Ikebukuro Line
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Seibu_Ikebukuro_Line".

Seibu Ikebukuro Line
Ikebukuro Station
Info
Locale	Kanto region
Termini	Ikebukuro Agano
No. of stations	31
Operation
Opened	15 April 1915
Owner	Seibu Railway
Depot(s)	Kotesashi
Technical
Line length	57.8 km
Gauge	1,067 mm
Electrification	1,500 V DC, overhead catenary

Route map

Legend Metro: Tokyo Metro JR-E: East Japan Railway Company Motomachi-Chūkagai Yokohama Minatomirai Railway:   Minato Mirai Line (thru in 2012) Yokohama Tōkyū: Tōyoko Line (thru in 2012) (thru to Shibuya in 2008) Shin-Kiba left: Metro Yūrakuchō Line far left: Metro Marunouchi Line 0.0 Ikebukuro JR-E: Tōhoku Main, Takasaki and Shōnan-Shinjuku lines JR-E: Saikyō Line (M-25 as Marunouchi Line) JR-E: Yamanote Line (Y-09 as Yūrakuchō Line) Tōbu: Tōjō Line Metro: Fukutoshin Line Agariyashiki (till 1953) 1.9 Shiinamachi 3.1 Higashi-Nagasaki Seibu Shijō freight (till 1963) 4.3 Ekoda {{BSkm| - |2.6}} Kotake-Mukaihara (Y-06) Metro: Yūrakuchō Line {{BSkm| - |1.4}} Shin-Sakuradai 5.2 Sakuradai {{BSkm|6.0|0.0}} Nerima (E-35 as Ōedo Line) Toei: Ōedo Line {{BSkm| - |1.0}} Toshimaen (E-36 as Ōedo Line) 7.5 Nakamurabashi 8.3 Fujimidai 9.5 Nerima-Takanodai 10.6 Shakujii-kōen 12.5 Ōizumi-gakuen 14.1 Hōya 16.4 Hibarigaoka 17.8 Higashi-kurume 19.6 Kiyose 21.8 Akitsu JR-E: Musashino Line (Shin-Akitsu) Freight bypass Hon-Kawagoe 24.8 Tokorozawa Seibu: Shinjuku Line to Seibu Shinjuku {{BSkm|27.2|0.0}} Nishi-Tokorozawa Seibu: Sayama Line {{BSkm| - |1.8}} Shimo-Yamaguchi {{BSkm| - |4.2}} Seibu Kyūjō-mae 29.4 Kotesashi 31.6 Sayamagaoka 32.9 Musashi-Fujisawa Shimohara freight (till 1982) 35.9 Inariyama-kōen 36.8 Irumashi Kurosu freight (till 1953) 39.7 Bushi 41.0 Motokaji Kasanui yard (till 2001) JR-E: Hachikō Line 43.7 Hannō 44.5 Higashi-Hannō 45.0 Kita-Hannō yard 46.5 Musashigaoka yard 48.5 Koma 51.3 Musashi-Yokote 53.8 Higashi-Agano Ikebukuro Line {{BSkm|57.8|0.0}} Agano Seibu Chichibu Line {{BSkm|61.4|3.6}} Nishi-Agano {{BSkm|64.1|6.3}} Shōmaru Shōmaru Tunnel {{BSkm|66.8|9.0}} Shōmaru Tunnel yard {{BSkm|70.2|12.4}} Ashigakubo Higashi-Yokoze freight (till 1996) {{BSkm|74.2|16.4}} Yokoze Mitsumineguchi Bypass to Chichibu Railway Chichibu Railway: Main Line {{BSkm|76.8|19.0}} Seibu Chichibu Ohanabatake

Hannō Station

Agano Station

The Ikebukuro Line (池袋線, Ikebukuro-sen^?) is a commuter railway line of the Japanese private railway operator Seibu Railway. It originates at Ikebukuro Station, a large railway junction in north-western Tokyo, extending to northwest suburbs as far as Tokorozawa, Saitama and nominally terminates at Agano Station.

The Seibu Chichibu Line from Agano to Seibu Chichibu Station is essentially an extension. The operation is however divided at Hannō Station, which has a switchback.

Branch lines

The Ikebukuro Line has three branches with through operation, apart from the Seibu Chichibu Line.

Toshima Line

1.0 km length, with Local trains through from Ikebukuro.

Seibu Yūrakuchō Line

The bypass to Tokyo Metro Yūrakuchō Line, with Semi Expresses and Rapids from Hannō to Shin-Kiba Station, with Locals. The proper name of the line is with the operator's name, to distinguish it from Tokyo Metro.

Sayama Line

Through trains are operated on holidays and days of baseball games of Saitama Seibu Lions.

Line data

• Tracks:
  • 4-track: Nerima to Nerima-Takanodai (3.5 km)
  • 2-track: Ikebukuro to Nerima (6.0 km), Nerima-Takanodai to Hannō (40.2 km), Kita-Hannō rail yard to Musashigaoka Rail yard (1.5 km)
  • 1-track: the remainder

History

The line opened 15 April 1915 as Musashino Line (武蔵野線, Musashinosen^?) (separate from the Musashino Line of JR East), by the then Musashino Railway (武蔵野鉄道, Musashino Tetsudō^?), the predecessor of the present Seibu Railway with the first section from Ikebukuro to Hannō. In 1922 the electrification began in three stages from Ikebukuro, until reaching Hannō in 1925. In the late 1920s, a second track was added from Ikebukuro to Hōya Station, and in 1929 the line was extended to Agano Station, the present nominal end. On March 25, 1952, the line was renamed to the Ikebukuro line, and throughout the 1950s and 1960s, the 2-track section was extended in stages until reaching Kasanui yard in 1969.

In 1969, the Seibu Chichibu Line was completed to Seibu Chichibu Station to begin thru operation from Ikebukuro; in 1989, bypass tracks were laid to the Chichibu Railway Main Line; and in 1998, through service via Seibu Yūrakuchō Line of Seibu to the Tokyo Metro's Yūrakuchō Line began to Shinkiba Station.

In 2001, a second track of 350 m was built to complete the double-track section from Ikebukuro to Hannō. At the same time, the elevated 4-track section from Nerima-Takanodai to Nakamurabashi opened. This elev