Isumi Line

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Isumi Line
Isumi Railway train at Higashi-Fusamoto.jpg
An Isumi Class 200 diesel car near Higashi-Fusamoto Station, April 2009
Overview
Locale Chiba Prefecture
Termini Ōhara
Kazusa-Nakano
Stations 14
Operation
Opened 1930
Operator(s) Isumi Railway Company
Depot(s) Ōtaki
Technical
Line length 26.8 km (16.7 mi)
Track gauge 1,067 mm (3 ft 6 in)
Minimum radius 200 m
Operating speed 65 km/h (40 mph)
Route map
Sotobō Line
0.0 Ōhara
1.7 Nishi-Ōhara
5.2 Kazusa-Azuma
7.4 Nittano
8.8 Kuniyoshi
11.9 Kazusa-Nakagawa
14.7 Shiromigaoka
15.8 Ōtaki
18.2 Koyamatsu
19.6 Higashi-Fusamoto
20.8 Kugahara
22.2 Fusamoto
25.1 Nishihata
26.8 Kazusa-Nakano
Kominato Line

The Isumi Line (いすみ線 Isumi-sen?) is a railway line in Chiba Prefecture, Japan, operated by the third-sector railway operating company Isumi Railway Company. It extends through the central eastern section of the Bōsō Peninsula, linking Ōhara Station in the city of Isumi, where it connects with the Sotobō Line, to Kazusa-Nakano Station in the town of Ōtaki, where it connects with the Kominato Line.

Station list

Station name Japanese Distance
(km)		 Transfers Location
Ōhara 大原 0.0 Sotobō Line Isumi
Nishi-Ōhara 西大原 1.7  
Kazusa-Azuma 上総東 5.2  
Nittano 新田野 7.4  
Kuniyoshi 国吉 8.8  
Kazusa-Nakagawa 上総中川 11.9  
Shiromigaoka 城見ヶ丘 14.7   Ōtaki
Ōtaki 大多喜 15.8  
Koyamatsu 小谷松 18.2  
Higashi-Fusamoto 東総元 19.6  
Kugahara 久我原 20.8  
Fusamoto 総元 22.2  
Nishihata 西畑 25.1  
Kazusa-Nakano 上総中野 26.8 Kominato Line

Rolling stock

  • Isumi Class 200 single-car DMUs
  • Isumi Class 300 single-car DMUs, numbers 301 to 302 (since March 2012)
  • Isumi Class 350 single-car DMU, number 351 (since 2013)
  • KiHa 28 DMU car KiHa 28 2346 from JR West)
  • KiHa 30 DMU car Kiha 30 62 (from JR East)
  • KiHa 52 DMU car KiHa 52-125 (from JR West)
  • KiHa 20 single-car DMU, number KiHa 20 1303, since September 2015

  • Isumi Class 200 DMU cars, May 2011

  • Isumi Class 300 DMU car 301, March 2012

  • Isumi Class 350 DMU car 351, March 2013

  • KiHa 28 2346, March 2013

  • KiHa 30 62, March 2013

  • KiHa 52-125, May 2014

  • KiHa 20 1303 in October 2015

The line uses a fleet of LE-Car II series diesel railcars classified "Isumi Class 200".[1]

In December 2010, former JR West KiHa 52 diesel car KiHa 52-125, formerly used on the Ōito Line was purchased by the Isumi Railway. This was repainted into JNR standard red and cream livery before entering revenue service.[2]

From March 2012, two new Isumi Class 300 diesel cars entered service on the line. Built by Niigata Transys, these feature transverse seating and toilets.[3]

On 11 October 2012, a former JR West KiHa 28 DMU car, KiHa 28 2346, was delivered to the line. This is used in conjunction with the KiHa 52 125 car.[4]

In January 2013, a JR East KiHa 30 DMU car, KiHa 30 62, previously used on the Kururi Line was delivered to the line.[5]

In 2013, a new Isumi Class 350 diesel car was delivered. Built by Niigata Transys, this car is based on the Isumi Class 300 design, but has longitudinal seating and no toilet. Designed to resemble the former JNR KiHa 20 DMU, the car is finished in the standard Isumi Railway livery of yellow with green bodyside stipes.[6]

In June 2015, a new KiHa 20 diesel car, numbered KiHa 20 1303, was delivered. Built by Niigata Transys, mechanically it is similar to the Class 300 design, and has the same style interior with transverse seating and a toilet, but externally it was built to resemble the JNR KiHa 20 design, like the Class 350 diesel car. The livery is JNR-style red and cream rather than the standard Isumi Railway yellow used on the Class 300 and 350 cars.[7] This unit entered service in September 2015.[8]

  • KiHa 52 125 still in blue and beige livery, December 2010

  • KiHa 52-125 in JNR livery, May 2011

History

Plans for the Isumi Line were drafted by the Railway Ministry under Railway Construction Act in 1922. However, the route already had an existing Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). gauge human-powered tramway, which had been opened by the Chiba Prefectural government on 15 December 1912 to connect Ōhara and Ōtaki. Local opposition and the deficit situation of the existing line delayed construction, which did not begin until 1925. The tramway was bought out by the Japanese Government Railways in 1927, and the first section of the new Kihara Line (木原線?) was opened on 1 April 1930. The line was extended to Fusamoto by 25 August 1933 and to its present terminus at Kazusa-Nakano on 26 August 1934.[1] As its name implies, the Kihara line was originally intended to connect Ōhara with Kisarazu. However, it was never extended further than Kazusa-Nakano.

In 1954, the first JNR diesel railbus, the KiHa 10000, was introduced on the Kihara Line.[1] Four additional stations were added on 20 June 1960 (Nishi-Ōhara, Nittano, Koyamatsuand Kugahara). However, on 4 September 1968 the line was listed as one of 83 money-losing local lines recommended for closure. The line problems were compounded in the summer of 1970, when heavy rains washed out a portion of the track, causing a suspension of operations from 1 July through 1 October. Scheduled freight operations were suspended from 1 October 1974. On 18 September 1981, the line was again recommended for closure.[1]

After the breakup and privatization of the JNR on 1 April 1987, the line came under the control of the JR East.

The Isumi Line came into being on 24 March 1988 following the transfer of the assest of the former Kihara Line to the newly formed third sector operator Isumi Railway Company.[1]

The Isumi Railway has attempted to increase revenues by selling naming rights to stations to local industries, leading to some confusion on the correct station names.

References

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  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

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