Tobu Isesaki Line

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Tōbu Isesaki Line
250 Series EMU on a Ryomo limited express service
TypeCommuter rail
SystemTobu Railway
TerminiTokyo Metro, Toei, Tobu
OpenedAugust 27, 1899
OwnerTobu Railway
Line length114.5 km (71.1 mi)
Track gauge1067
Operating speed110 km/h (70 mph)*

The Tōbu Isesaki Line (東武伊勢崎線, Tōbu Isesaki-sen) is one of the two main lines of Japanese private railway company Tobu Railway, extending from Asakusa Station in Tokyo to Isesaki Station in Gunma Prefecture. It is the longest non-JR "private" railway line in Japan at 114.5 km. Some trains from the line continue to the Tokyo Metro Hibiya Line and Tokyo Metro Hanzōmon Line.


quadruple: Tokyo SkytreeHikifune 1.3 km, Kita-SenjuKita-Koshigaya 18.9 km
single: TatebayashiIsesaki 39.9 km
double: the rest
114.5 km

Note that Oshiage Station is officially an extension or part of Tokyo Skytree. The double tracks between Oshiage and Hikifune are thus the third and fourth tracks of the Tokyo Skytree − Hikifune section.


Video of a Tobu 10000 series train near Sengendai Station, October 2012

Through trains

The Isesaki Line has trains through to two lines of Tokyo Metro. One is the Hibiya Line connected at Kitasenju, with Local trains alone. The other is the Hanzōmon Line at Oshiage, with rapid trains of Tōbu. Beyond Shibuya, the terminus of Hanzōmon Line, nearly all trains go through to the Tōkyū Den-en-toshi Line, down to the terminus Chūō-Rinkan.

To the north it has trains through the Yagan Railway to the Aizu Railway's Aizutajima Station.

Rapid service

Tōbu operates several types of rapid service on this line.

Stops and operated sections are as of 2006.

Local (普通, Futsū) (announced as 各駅停車 (Kakueki Teisha) or 各停 (kakutei) for short) (L)
Operated in separate three sections.
  • Asakusa − Kitasenju to complement Section Semi Express and Section Express
  • Nakameguro of Hibiya Line − Kitasenju − Tōbu Dōbutsu Kōen. One service per direction per 10 minutes.
  • Kuki − 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 Kuki or Minami-Kurihashi on Nikkō Line.
Semi-Express (準急, Junkyū) (SmE)
Early morning and late night. Down to 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 Tatebayashi, Ōta or Shin-Tochigi on the Nikkō Line.
Express (急行, Kyūkō) (Ex)
From morning to night. Down to 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.
Rapid (快速, Kaisoku), Section Rapid (区間快速, Kukan Kaisoku) (R)
Non-charged rapid train through to Nikkō Line, Kinugawa Line of Tobu and Yagan Railway, terminates at Aizu Tajima on the Aizu Railway.
Limited Express (特急, Tokkyū)
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 E R, SR Location
Tokyo Metro, Toei, Tobu S S *1 S *2 S *2 S Taitō Tokyo
Tokyo Skytree S S S S   Sumida
(Oshiage)       S   S  
Hikifune S S S S S S  
Higashi-Mukōjima S S S   S    
Kanegafuchi S S S   S    
Horikiri S S S   S     Adachi
Tokyo S S S   S    
Kita-Senju S S S S S S S S
Kosuge S   S          
Gotanno S S          
Umejima S S          
Nishiarai S S S S S S  
Takenotsuka S S          
Yatsuka S S           Sōka Saitama
Sōka S S S S S S  
Matsubaradanchi S S          
Saitama S S          
Gamō S S           Koshigaya
Shin-Koshigaya S S S S S S  
Koshigaya S S S S S S  
Kita-Koshigaya S S S S      
Ōbukuro S S S S      
Sengendai S S S S S S  
Takesato S S S S       Kasukabe
Ichinowari S S S S      
Kasukabe S S S S S S S
Kita-Kasukabe S S S S *3    
Himemiya S S S S       Miyashiro
Tōbu Dōbutsu Kōen S S S
Wado S   S S S S  
Saitama S S S S S S Kuki
Washinomiya S S S*   S  
Saitama S S S* S Kazo
Kazo S S S* S
Minami-Hanyū S S S* S Hanyū
Hanyū S S S* S
Kawamata S S S* S Meiwa Gunma
Morinji-mae S S S* S Tatebayashi
Tatebayashi S S S* S
Gunma S S S* S
Agata S S S* S Ashikaga Tochigi
Tochigi S S S* S
Tōbu-Izumi S S S* S
Ashikagashi S S S* S
Yashū-yamabe S S S* S
Niragawa S S S* S Ōta Gunma
Gunma S S S S* S
Gunma     S    
Kizaki S
Serada S
Sakaimachi S Isesaki
Gōshi S
Shin-Isesaki S
Isesaki S


The Isesaki Line was opened in 1899 between Kita-Senju and Saitama with steam motive power by the present company. In 1902 Toōbu extended 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. In the next year further north extension to Kawamata (then on the south bank of Tone River) was opened. Gradual extension northward progressed, and in 1910 the line arrived Isesaki. In 1931, a bridge over Sumida River was built and present Asakusa Station (then Asakusa Kaminarimon (浅草雷門)) opened in the upper floors of a department store building, the entire stretch completed.

Electrification was begun in 1924 on the section of Asakusa and Nishiarai, and in 1927 completed til 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 the World War II, a great problem emerged that the Tōbu 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 Hanzōmon Line in the 1990s. In 2003, the company built new tracks from Hikifune to connect at Oshiage, officially an annex station of Tokyo Skytree.

On March 3, 2006, the revised timetable changed past operations greatly, with only less than half of trains originating or terminating at Asakusa, and more trains operating through to Tokyo Metro underground (subway) lines.


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

External links