Nagasaki Main Line - Nagasaki Main Line

Japanese: 長崎本線 - ながさきほんせん
Nagasaki Main Line - Nagasaki Main Line

The name of the Kyushu Railway Company's track. It consists of 125.3 km of Tosu (Saga Prefecture) - Nagasaki (AC electrified, double track rate 36.8%) and 23.5 km of Kikitsu - Nagayo - Urakami in Nagasaki Prefecture (all single track). It is the main railway line in the Kyushu region that branches off from the Kagoshima Main Line at Tosu and passes through Saga, Hizen Yamaguchi, the Ariake Sea coast, Isahaya, etc. before reaching Nagasaki. It was built by Kyushu Railway and opened the Tosu - Nagasaki section between 1891 and 1905 (Meiji 24 - 38), but the route at that time passed through Takeo, Arita, Haiki, Omura Bayside, Nagayo, etc. It was nationalized in 1907 (Meiji 40), and when the track names were unified in 1909, it became the Nagasaki Main Line. In 1930 (Showa 5), ​​the 1.1 km section between Nagasaki and Nagasaki Port was opened, but this line was established as a connection for passenger ships on the Shanghai route, and only connecting passenger trains and freight trains were operated, so Nagasaki Station was the terminus for regular trains (abolished in 1987). Between 1930 and 1934, the Ariake East and West lines, connecting Hizen-Yamaguchi and Isahaya via the Ariake Coast, were opened, and when the line was completed in 1934, it was incorporated into the Nagasaki Main Line. With this, the existing section between Hizen-Yamaguchi and Sasebo was incorporated into the Sasebo Line, and the section between Sasebo and Isahaya became the Omura Line. In addition, because the section between Kikitsu, Nagayo and Urakami had a steep gradient that was a bottleneck in transport, a new line was constructed to shortcut this section, passing under Mt. Hoba through the Nagasaki Tunnel (6,173 meters); it opened in 1972 and major trains began running on the new line. In 1976, the Tosu-Nagasaki section was electrified with AC power via this new line. Many trains, including limited express trains, run directly to Hakata via the Kagoshima Main Line. In 1987, following the privatization of the Japanese National Railways, the line became part of Kyushu Railway Company.

[Eiichi Aoki]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

九州旅客鉄道の線路名称。鳥栖(とす)(佐賀県)―長崎間125.3キロメートル(交流電化。複線化率36.8%)および長崎県内の喜々津(ききつ)―長与(ながよ)―浦上(うらかみ)間23.5キロメートル(全線単線)よりなる。鳥栖で鹿児島本線より分岐し、佐賀、肥前山口、有明海沿岸、諫早(いさはや)などを経て長崎に至る九州地方の幹線鉄道。九州鉄道によって建設され、1891~1905年(明治24~38)に鳥栖―長崎間を開業したが、当時のルートは武雄(たけお)、有田、早岐(はいき)、大村湾岸、長与などを経由するものであった。1907年(明治40)国有化、1909年の線路名称統一で長崎本線となった。1930年(昭和5)に長崎―長崎港間1.1キロメートルが開通したが、この線は上海(シャンハイ)航路の客船への連絡のため設けられたもので、連絡旅客列車と貨物列車のみの運転にとどめられたので、一般列車の終点は長崎駅であった(1987年廃止)。1930~1934年、有明海岸を通って肥前山口と諫早を結ぶ有明東線と西線が開通し、1934年の全通とともにこれを長崎本線に編入した。これに伴って、在来の肥前山口―早岐間を佐世保(させぼ)線に編入し、早岐―諫早間を大村線とした。また喜々津―長与―浦上間には急勾配(こうばい)区間があって輸送上のネックとなったため、帆場(ほば)岳の下を長崎トンネル(6173メートル)で貫いてこの区間を短絡する新線が建設され、1972年(昭和47)開通して主要列車は新線を通過することとなった。1976年にこの新線経由で鳥栖―長崎間が交流電化されている。特急列車をはじめとする多くの列車は鹿児島本線に乗り入れて博多(はかた)方面に直通する。1987年、日本国有鉄道の分割民営化に伴い、九州旅客鉄道に所属。

[青木栄一]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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