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Tōbu_Isesaki_Line

Tōbu Isesaki Line

The Isesaki Line (伊勢崎線 Isesaki-sen) is one of the two main lines of Japanese private railway company Tōbu Railway, extending from Asakusa Station in Tokyo to Isesaki, 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's Hibiya and Hanzōmon lines.

Descriptions

Track:
qudruple: - 1.3 km, - 18.9 km
single: - 39.9 km
double: the restLength: 114.5 km (Longest single Japanese non-JR "private" railway line)
N.B. is officially an extension or part of Narihirabashi. Double tracks between Oshiage and Hikifune are thus the 3rd and 4th tracks of Narihirabashi - Hikifune.

History

The Isesaki Line was opened in 1899 between and with steam motive power by the present company. In 1902 Tōbu extended south to have a maritime connection at present (then , later renamed Asakusa) in downtown Tokyo, and north to . In the next year further north extension to (then on the south bank of Tone River) was opened. Gradual extension northward was progressed, and in 1910 the line arrived . In 1931, a bridge over Sumida River was built and present Asakusa Station (then ) opened in the upper floors of a department store building, the entire stretch completed.

Electrification was began in 1924 on the section of Asakusa and , 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 Yamada Line.

After the World War 2, a great problem emerged that the Tōbu Lines had no connection to the Yamanote Line or other major lines of the then Japan National Railway (present JR) to offer efective 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 Hibiya Line of the then , known as TRTA or Eidan, present Tokyo Metro) was built, connecting at Kitasenju.

Further growing traffic required Tōbu to make the second through line to Tokyo Metro in 1990s. The answer is the Hanzōmon Line which has longer, wider size carriage allowances. In 2003, the company built new tracks from Hikifune to connect at , officially an annex station of Narihirabashi.

On March 3, 2006, current new timetable changed past operations greatly. Now only less than half trains originate or terminate at Asakusa, i.e. more trains are through to Tokyo Metro underground (subway) lines.

Operation

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. Cars are narrower and shorter, exclusively used for this operation. The other is Hanzōmon Line at Oshiage, with rapid trains of Tōbu. Beyond , the terminus of Hanzōmon Line, nearly all trains go through to Tokyu Corporation's Den-en-toshi Line, down to the terminus . Cars are of standard dimensions of Tōbu.

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. (announced as or for short) (L)

Operated in separate three sections.
*Asakusa - Kitasenju to complement Section Semi Express and Section Express
* 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. (SSE)
Between Asakusa and Kuki or Minami-Kurihashi of Nikkō Line. (SmE)
Early morning and late night. Down to Kuki or to Minami-Kurihashi of Nikkō Line halfly through from Chūō-Rinkan of Tōkyū Den-en-toshi Line via Hanzōmon Line. 10 cars. (SE)
Between Asakusa and Tatebayashi, Ōta or Shin-Tochigi of Nikkō Line. (Ex)
From morning to night. Down to Kuki (nearly half to Minami-Kurihashi of Nikkō Line), through from Chūō-Rinkan of Tōkyū Den-en-toshi Line via Hanzōmon Line. 10 cars., (R)
Non-charged rapid train through to Nikkō Line, Kinugawa Line of Tōbu and Yagan Railway, terminates at of Aizu Railway.
Stops not shown. Charged for seat reservation and rapid service. Mainly through to Nikkō Line for touristic Nikkō area named and . Some through to Isesaki from Asakusa, sole direct service named . See Tōbu Limited Express for detail.

Stations

Gallery

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Station L SSE SmE SE E R, SR Location
S S *1 S *2 S *2 S Taitō Tokyo
S S S S   Sumida
()       S   S  
S S S S S S  
S S S   S    
S S S   S    
S S S   S     Adachi
S S S   S    
S S S S S S S S
S   S          
S S          
S S          
S S S S S S  
S S          
S S           Sōka Saitama
S S S S S S  
S S          
S S          
S S           Koshigaya
S S S S S S  
S S S S S S  
S S S S      
S S S S      
S S S S S S  
S S S S       Kasukabe
S S S S      
S S S S S S S
S S S S *3    
S S S S       Miyashiro
S S S
*4
S
*4
S
*4
S
*4
S
*4
S   S S S S  
S S S S S S Kuki
S S S*   S   Washimiya
S S S* S Kazo
S S S* S
S S S* S Hanyū
S S S* S
S S S* S Meiwa Gunma
S S S* S Tatebayashi
S S S* S
S S S* S
S S S* S Ashikaga Tochigi
S S S* S
S S S* S
S S S* S
S S S* S
S S S* S Ōta Gunma
S S S S* S
    S    
S
S
S Isesaki
S
S
S