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Tobu Isesaki Line

Tobu Isesaki Line
Tobu 200 series Ryomo EMU
Type Commuter rail
Locale Kantō
Termini Tōbu-Dōbutsu-Kōen
Stations 26
Daily ridership 843,495 (2010)[1]
Opened August 27, 1899
Owner Tobu Railway
Depot(s) Tatebayashi
Line length 75.1 km (46.7 mi)
Track gauge 1,067 mm (3 ft 6 in)
Electrification 1,500 V DC
Operating speed 110 km/h (70 mph)
Route map
Through trains destination
DownTobu Skytree Line
UpDownTokyu Den-en-toshi Line
UpDownTokyo Metro Hanzōmon Line
41.0 Tōbu Dōbutsu Kōen
Left Tōbu Nikkō Line
43.9 Wado
LeftTohoku ShinkansenRight
47.7 Kuki
LeftTohoku Main Line (Utsunomiya Line)Up
52.1 Washinomiya
54.8 Hanasaki
58.5 Kazo
63.1 Minami-Hanyū
66.2 Hanyū
Chichibu Main LineRight
Tone River
70.5 Kawamata
72.4 Morinji-mae
74.6 Tatebayashi
LeftTōbu Sano Line, Tōbu Koizumi LineRight
78.6 Tatara
81.8 Agata
83.9 Fukui
85.1 Tōbu-Izumi
86.8 Ashikagashi
88.5 Yashū-yamabe
91.8 Niragawa
Tōbu Koizumi LineRight
94.7 Ōta
LeftTōbu Kiryū Line
97.8 Hosoya
101.2 Kizaki
104.1 Serada
106.3 Sakaimachi
110.0 Gōshi
113.3 Shin-Isesaki
114.5 Isesaki
UpDownRyōmō Line

The Tobu Isesaki Line (東武伊勢崎線 Tōbu Isesaki-sen) is a Japanese railway line operated by the private railway company Tobu Railway, extending from Tōbu-Dōbutsu-Kōen Station in Saitama to Isesaki Station in Gunma Prefecture. From March 2012, the southern 41.0 km section of the line was rebranded as the Tobu Skytree Line in conjunction with the opening of the Tokyo Skytree tower.


  • Descriptions 1
  • Operation 2
    • Service patterns 2.1
  • Stations 3
  • Rolling stock 4
  • History 5
  • References 6
  • External links 7


single: TatebayashiIsesaki 39.9 km
double: the rest


Service patterns

Stops and operated sections are as of 2013.

Local (普通 Futsū) (announced as Kakueki Teisha (各駅停車) or kakutei (各停) for short) (L)
  • Tōbu-Dōbutsu-Kōen − Ōta. Connection with Express. Three per hour, with one between Kuki and Tatebayashi.
  • Ōta − Isesaki. One per hour per direction, conductorless.
Section Semi-Express (区間準急 Kukan Junkyū) (SSE)
Between Asakusa and Tōbu-Dōbutsu Kōen, Kuki or Minami-Kurihashi on Nikkō Line.
Semi-Express (準急 Junkyū) (SmE)
Early morning and late night. Down to Tōbu-Dōbutsu-Kōen, Kuki or to Minami-Kurihashi on the Nikkō Line through from Chūō-Rinkan of Tokyu Den-en-toshi Line via Hanzōmon Line. 10 cars.
Section Express (区間急行 Kukan Kyūkō) (SE)
Between Asakusa and Tōbu-Dōbutsu-Kōen, Tatebayashi, Ōta or Shin-Tochigi on the Nikkō Line.
Express (急行 Kyūkō) (Ex)
From morning to night. Down to Tōbu-Dōbutsu-Kōen, Kuki (nearly half to Minami-Kurihashi on the Nikkō Line), through from Chūō-Rinkan on the Tokyu Den-en-toshi Line via Hanzōmon Line. 10 cars.
Limited Express (特急 Tokkyū) (LE)
Stops not shown. Charged for seat reservation and rapid service. Mainly through to the Nikkō Line for the Nikko area named Kegon (けごん) and Kinu (きぬ). Some through to Isesaki from Asakusa, sole direct service named Ryōmō (りょうもう).


Station L SSE SmE SE Ex Location
Tōbu-Dōbutsu-Kōen O
Miyashiro Saitama
Wado O O O O O
Kuki O O O O O Kuki
Washinomiya O O   O  
Hanasaki O O O Kazo
Kazo O O O
Minami-Hanyū O O O Hanyū
Hanyū O O O
Kawamata O O O Meiwa Gunma
Morinji-mae O O O Tatebayashi
Tatebayashi O O O
Tatara O O O
Agata O O O Ashikaga Tochigi
Fukui O O O
Tōbu-Izumi O O O
Ashikagashi O O O
Yashū-yamabe O O O
Niragawa O O O Ōta Gunma
Ōta O O O
Hosoya O    
Kizaki O
Serada O
Sakaimachi O Isesaki
Gōshi O
Shin-Isesaki O
Isesaki O

Rolling stock


Overview of the original Asakusa Station terminus (present-day Tokyo Skytree Station) in 1927
An up express service on the Tobu Isesaki Line formed of a 4-car EMU in March 1940

The first section of the Isesaki Line was opened by the present company in 1899 between Kita-Senju and Kuki utilising steam motive power. In 1902, Tobu extended the line south to have a maritime connection at present Tokyo Skytree (then Azumabashi (吾妻橋), later renamed Asakusa) in downtown Tokyo, and north to Kazo. The following year a further northern extension to Kawamata (then on the south bank of Tone River) was opened. Further northward extension progressed, and in 1910 the line arrived at Isesaki. In 1931, a bridge over the Sumida River was built and present Asakusa Station (then Asakusa Kaminarimon (浅草雷門)) opened as part of the department store building, the entire line being completed.

The Asakusa to Nishiarai section was double-tracked in 1912, and the rest of the line was double-tracked between 1920 and 1927, except for the Hanyu to Kawamata section, which was double-tracked when a second bridge was built over the Tonegawa in 1992.

Electrification was begun in 1924 on the section of Asakusa and Nishiarai, and in 1927 completed as far as Isesaki. The distance of over 100 km was then one of the longest electrified railway lines together with the present Kintetsu Osaka Line and Kintetsu Yamada Line.

After World War II, the Tobu Lines had no connection to the Yamanote Line or other major lines of the then Japanese National Railways (JNR) to offer efficient transfers to central Tokyo. The sole connection was with the Jōban Line at Kitasenju, which offered poor access to central Tokyo. To solve the inefficiencies of transfers at Kitasenju and notoriously narrow Asakusa, in 1962, the Hibiya Line of the then Teito Rapid Transport Authority (帝都高速度交通営団 Teito Kōsokudo Kōtsū Eidan), known as TRTA, present Tokyo Metro) was built, connecting at Kitasenju.

Further growing traffic required Tobu to build a second through line to Tokyo Metro Hanzomon Line in the 1990s. In 2003, the company built new tracks from Hikifune to connect at Oshiage, officially an annex station of Tokyo Skytree.

From the March 3, 2006, timetable revision, less than half of trains originated or terminated at Asakusa, with more trains operating through to Tokyo Metro underground (subway) lines.

From 17 March 2012, the section south of Tōbu-Dōbutsu-Kōen was rebranded as the Tobu Skytree Line.


This article incorporates material from the corresponding article in the Japanese WorldHeritage

  1. ^ Tobu ridership in 2010 Train Media (sourced from Tobu) Retrieved May 28, 2012.

External links

  • Tobu Railway Isesaki Line information page (Japanese)
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