Tobu Isesaki Line

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     Tobu Isesaki Line
Tobu Railway 100.jpg
Tobu 100 series Spacia EMU
Type Commuter rail
Locale Kantō
Termini Tōbu-Dōbutsu-Kōen
Stations 26
Daily ridership 843,495 (2010)[1]
Opening 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
{{BSkm|-|0.0}} Asakusa
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. The southern 41.0 km section of the line received a nickname for itself in March 2012 to become the Tobu Skytree Line.


single: TatebayashiIsesaki 39.9 km
double: the rest


Service patterns[edit]

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


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 Isesaki Line was opened in 1899 between Kita-Senju and Kuki with steam motive power by the present company. In 1902, Tobu 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 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 stretch completed.

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.

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.

From 17 March 2012, the section south of Tōbu-Dōbutsu-Kōen received a nickname for itself to become the Tobu Skytree Line.


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

External links[edit]