Wikipedia

Nagasaki Main Line

The Nagasaki Main Line (長崎本線, Nagasaki-honsen), or simply known as the Nagasaki Line, is a railway line owned by the Kyushu Railway Company (JR Kyushu) connecting Tosu Station in Saga Prefecture to Nagasaki Station in Nagasaki Prefecture, Japan. There is a separate branch of this line from Kikitsu Station to Urakami Station by way of Nagayo Station and the Nagasaki Tunnel, avoiding a long detour.[2]

Nagasaki Main Line
Kiha 47, which became the mainstay of the non-electrified section of the Nagasaki Main Line
(Kōhoku Station on September 24, 2022)
Overview
OwnerJR Kyushu
LocaleSaga, Nagasaki prefectures
Termini
Stations41
Service
TypeHeavy rail
Operator(s)JR Kyushu, JR Freight
History
Opened1891
Technical
Line length148.8 km (92.5 mi)
Track gauge1,067 mm (3 ft 6 in)
Electrification20 kV AC, 60 Hz Overhead catenary (Tosu-Hizen-Hama)
Route map

Route data

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  • Operators and route length:
    • JR Kyushu (services and tracks)
      • Tosu - Nagasaki: 125.3 km (77.9 mi)
      • Kikitsu - Nagayo - Urakami: 23.5 km (14.6 mi)
    • JR Freight (services)
      • Tosu - Nagasaki: 125.3 km (77.9 mi)
  • Stations: 41 (including seasonal stations)
  • Double-tracking:
    • Tosu - Kōhoku
    • Isahaya - Kikitsu
    • Urakami - Nagasaki
  • Electrification: Tosu - Hizen-Hama (20kV AC 60 Hz)
  • Railway signalling: Automatic
  • CTC center: Hakata Integrated Operations Center

Route description

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The line is single-tracked between Kōhoku and Isahaya stations due to the coastal geography of the area making double-tracking prohibitively expensive. The "old route" (旧線) is the branch of the Nagasaki Main Line between Kikitsu and Urakami via Nagayo that existed before the opening of the new route. Prior to the opening of the new route, express and limited express trains ran on this section. Vestiges of this can be seen at Michinoo and other stations along the route. The "new line" (新線) is the branch of the Nagasaki Main Line between Isahaya and Urakami via Ichinuno through the Nagasaki Tunnel. The line was electrified in 1976, however due to the lack of freight trains running beyond Nabeshima and low population along the line, the section between Hizen-Hama and Nagasaki is scheduled to be de-electrified after the opening of the Nishi Kyushu Shinkansen.

Services

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Limited express

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As of 23 September 2022, the Relay Kamome limited express operates on the Nagasaki Main Line until Kōhoku before splitting off to Takeo-Onsen where passengers can board the Nishi Kyushu Shinkansen to Nagasaki. The merged Midori/Huis Ten Bosch limited express operates east of Kōhoku Station with some services operating additionally as a Relay Kamome until Takeo-Onsen. Prior to the opening of the new Shinkansen line, limited express trains travelled over the new route between Isahaya and Urakami stations. Limited Express Relay Kamome trains are operated by JR Kyushu using the 6-car 885 series and 8-car 787 series. [3] A new limited express service Kasasagi was introduced between Hizen-Kashima and Hakata with through services to Mojiko to make up for the loss of the Kamome along the line using the 6-car 885 series, 8-car 787 series, and 8-car 783 series EMU's. [4]

Overnight sleeper trains, such as the Sakura (between Tokyo and Nagasaki) and Akatsuki (between Kyoto and Nagasaki), were discontinued in 2008.

Regional trains

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Other than trains that are operated on the entire Nagasaki Line, there are trains which operate in specific sections, such as from Tosu to Hizen-Kashima, and trains which continue on to other lines. From of 23 September, all electric trains are slated to be replaced by DMUs and hybrid diesel-electric trains between Hizen-Hama and Nagasaki.

  • In the morning, from Hizen-Nanaura Station, there is a direct train to Mojikō Station (on the Kagoshima Main Line).
  • The new line from Isahaya to Nagasaki uses EMUs, but the old line, including direct trains to the Omura Line, uses DMUs. However, the rapid service train Seaside Liner, despite being a DMU, uses the new line.
  • Between Hizen-Nanaura Station and Yue Station, because it is a relatively inactive part of the line, local trains only run for about five hours into the daytime after the morning rush.
  • Wanman Driver-only operation trains are operated on the entire Nagasaki Line. On the new line, the 817 series EMU is used, and on the old line, the KiHa 66, 67, and 200 DMUs are used.

Freight

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Freight trains are operated between Tosu and Nabeshima. High-speed freight trains make three round trips a day from Tosu Freight Terminal to Nabeshima. The electric locomotive used is the Class ED76. Freight trains only arrive and depart from Nabeshima station.

Stations

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Legend

  • All trains stop at stations marked "●", some stop at stations marked "▲". All trains pass stations marked "｜".
  • Double-tracked sections are marked "∥", single-tracked sections where trains may pass are marked "◇", and single-tracked sections where trains cannot pass are marked "｜".
    "^" and "∨" indicate a boundary between single- and double-track sections.

New route (via Ichinuno)

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Numbering Station Japanese Distance (km) 36 plus 3 Futatsuboshi 4047 Rapid Transfers   Location
(Town | Prefecture)
Between
Stations 		Total
JH  01  Tosu 鳥栖 - 0.0 Through train from Hakata Through train from Takeo-Onsen   Kagoshima Main Line ∥ Tosu Saga
JH  02  Shin-Tosu 新鳥栖 2.0 2.0   Kyushu Shinkansen ∥
JH  03  Hizen-Fumoto 肥前麓 2.2 4.2     ∥
JH  04  Nakabaru 中原 4.3 8.5     ∥ Miyaki, Miyaki District
JH  05  Yoshinogari-Kōen 吉野ヶ里公園 4.6 13.1     ∥ Yoshinogari, Kanzaki District
JH  06  Kanzaki 神埼 2.6 15.7     ∥ Kanzaki
JH  07  Igaya 伊賀屋 4.5 20.2     ∥ Saga
JH  08  Saga 佐賀 4.8 25.0 ●     ∥
Nabeshima 鍋島 3.0 28.0 |     ∥
Balloon Saga (seasonal) バルーンさが 1.8 29.8 |     ∥
Kubota 久保田 1.6 31.4 |   Karatsu Line[* 1] ∥
Ushizu 牛津 2.8 34.2 |     ∥ Ogi
Kōhoku 江北 5.4 39.6 | (through train to Takeo-Onsen) ▲   Sasebo Line (some trains through to/from Tosu) ∨ Kōhoku, Kishima District
Hizen-Shiroishi 肥前白石 5.1 44.7 | |     ◇ Shiroishi, Kishima District
Hizen-Ryūō 肥前竜王 4.7 49.4 | |     ◇
Hizen-Kashima 肥前鹿島 5.2 54.6 | |     ◇ Kashima
Hizen-Hama 肥前浜 3.0 57.6 ● (switch-back operation) ▲     ◇
Hizen-Nanaura 肥前七浦 3.9 61.5 |     ◇
Hizen-Iida 肥前飯田 2.1 63.6 |     ◇
Tara 多良 4.1 67.7 ▲     ◇ Tara, Fujitsu District
Hizen-Ōura 肥前大浦 7.9 75.6 |     ◇
Konagai 小長井 6.7 82.3 ▲     ◇ Isahaya Nagasaki
Nagasato 長里 2.4 84.7 | To/from Ōmura Line   ◇
Yue 湯江 2.9 87.6 |   ◇
Oe 小江 3.3 90.9 |   ◇
Hizen-Nagata 肥前長田 4.7 95.6 |   ◇
Higashi-Isahaya 東諫早 2.2 97.8 |   ◇
Isahaya 諫早 2.6 100.4 ● (through train to Takeo-Onsen via Ōmura Line) ● Nishi Kyushu Shinkansen
Ōmura Line (through to/from Nagasaki)
Shimabara Railway Line 		^
Nishi-Isahaya 西諫早 2.8 103.2 | ▲   ∥
Kikitsu 喜々津 3.7 106.9 | ● Nagasaki Main Line (old route) (through to/from Isahaya) ∨
Ichinuno 市布 2.5 109.4 | ▲   ◇
Hizen-Koga 肥前古賀 2.9 112.3 | ▲   ｜ Nagasaki
Utsutsugawa 現川 2.5 114.8 | ▲   ◇
Urakami 浦上 8.9 123.7 | ● Nagasaki Main Line (old route) (through to/from Nagasaki)
Nagasaki Electric Tramway: Main Line (Urakami-Ekimae) 		^
Nagasaki 長崎 1.6 125.3 ● ● Nishi Kyushu Shinkansen
Nagasaki Electric Tramway Main Line
Sakuramachi Branch (Nagasaki-Ekimae) 		∥
  1. ^ Karatsu Line trains run through to Saga Station

Old route (via Nagayo)

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  • All stations located within Nagasaki Prefecture.
  • All trains make all stops.
Station Japanese Distance (km) Transfers   Location
Between
Stations 		Total
Kikitsu 喜々津 - 0.0 Nagasaki Main Line (new route) (through to/from Isahaya) ◇ Isahaya
Higashisono 東園 3.5 3.5   ｜
Ōkusa 大草 3.7 7.2   ◇
Honkawachi 本川内 5.1 12.3   ｜ Nagayo, Nishisonogi District
Nagayo 長与 3.1 15.4   ◇
Kōda 高田 1.0 16.4   ｜
Michinoo 道ノ尾 2.5 18.9   ｜
Nishi-Urakami 西浦上 1.7 20.6   ｜ Nagasaki
Urakami 浦上 2.9 23.5 Nagasaki Main Line (new route) (through to/from Nagasaki)
Nagasaki Electric Tramway Main Line (Urakami-Ekimae) 		◇

Rolling stock

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History

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The Kyushu Railway Co. opened the Tosu - Saga section in 1891, extending it to Nagasaki via Haiki in 1898.

In 1907, the Railway Nationalization Act was passed in Japan, nationalising all major railways. The Hizen-Yamaguchi - Isahaya direct line was opened in 1934, with the Hizen-Yamaguchi - Haiki section being renamed the Sasebo Line and the Haiki - Isahaya section the Omura Line.

The Saga - Nabeshima section was the first to be duplicated in 1966, and by 1969 the Tosu - Hizen-Yamaguchi and Isahaya - Kikitsu sections were duplicated. The Urakami-Nagasaki section was duplicated in 1990.

The 6173m Shin-Nagasaki tunnel and associated Kititsu - Urakami deviation opened in 1972, and the entire line was electrified in 1976. Freight services beyond Nabeshima ceased in 1999.

Former connecting lines

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  • Saga station - The 24 km line to Setaka (on the Kagoshima Main Line) opened 1931-35, and closed in 1987. This line crossed three major watercourses by substantial bridges.

Future plans

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In January 2022, it was announced that the Nagasaki Main Line would be split into two sections and upper and lower management separation is to be introduced. JR Kyushu will continue to operate trains in the two section as a Type 2 Railway Business while the infrastructure of the 60.8 km (37.8 mi) section between Hizen-Yamaguchi Station and Isahaya Station is to be maintained by Saga-Nagasaki Railway Management Centre as a Type 3 Railway Business.[5] JR Kyushu is to maintain train operations in this section for the next 23 years after the opening of the Nishi Kyushu Shinkansen.

On 10 June 2022, JR Kyushu announced further details regarding the section between Hizen-Yamaguchi station and Isahaya Station. The section between Hizen-Hama Station and Nagasaki Station is to be de-electrified with diesel trains replacing all electric trains running in this section. Hizen-Yamaguchi Station is to be renamed to Kohoku Station (江北). To make up for the loss of express trains running in this section, a new express train "Kasasagi" is to operate between Hizen-Kashima Station and Saga Station with services going onwards to Hakata Station. As de-electrification means the joyful train "36 plus 3" will no longer be able to reach Nagasaki Station, a new diesel joyful train "Futatsuboshi 4047" is to operate along the Nagasaki Main Line during the morning run and Omura Line in the afternoon return run.[6]

References

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Wikimedia Commons has media related to Nagasaki Main Line.

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

  1. ^ にっぽん列島 - 鉄道紀元 [Nippon Rettō - Tetsudō-kigen]. Vol. 27. JTB Publishing Inc. May 10, 2007. pp. 12–15.
  2. ^ "TrainReview's Guide to Limited Express Kamome Trains".
  3. ^ "TrainReview". trainreview.com. Retrieved 2020-08-05.
  4. ^ "新特急「かささぎ」「リレーかもめ」9月23日デビュー 西九州新幹線開業に合わせ誕生（乗りものニュース）". Yahoo!ニュース (in Japanese). Retrieved 2022-09-23.
  5. ^ "ＪＲ長崎本線（肥前山口～諫早）の鉄道事業許可" [JR Nagasaki Main Line (Hizen Yamaguchi-Isahaya) railway business license] (PDF). mlit.co.jp (in Japanese). 31 January 2022. Retrieved 1 February 2022.
  6. ^ "西九州新幹線が開業します在来線各線区でダイヤを見直します" [The Nishi-Kyushu Shinkansen will open. We will review the schedule for each conventional line section.] (PDF). jrkyushu.co.jp (in Japanese). 10 June 2022. Archived (PDF) from the original on 10 June 2022. Retrieved 23 June 2022.
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