Sobu Main Line

Japanese: 総武本線 - そうぶほんせん
Sobu Main Line

The name of the East Japan Railway Company's track that runs from eastern Tokyo to northern Chiba Prefecture. It consists of 120.5 km between Tokyo and Choshi, and 4.3 km between Ochanomizu and Kinshicho. There are 8.9 km of freight lines between Koiwa and Kanamachi, and 11.7 km between Koiwa and Etchujima freight. The 34.4 km section between Kinshicho and Chiba is quadruple track, the 65.2 km section between Sakura and Choshi is single track, and the rest are double track and DC electrified. It is a main railway line that connects northern Chiba Prefecture (Shimousa Plateau, Kujukuri Plain) with Tokyo, and cities along the line include Ichikawa, Funabashi, Chiba, Yotsukaido, Sakura, Yachimata, Yokaichiba, Asahi, and Choshi. Between 1894 and 1904 (Meiji 27-37), the Sobu Railway opened the section between Ryogokubashi (now Ryogoku) and Choshi, and was nationalized in 1907. In 1932 (Showa 7), the Ochanomizu-Ryogoku section was opened, and in 1972 (Showa 47), a new underground line was opened between Tokyo and Kinshicho, and rapid trains began operating. Electrification was completed between Chiba and Choshi in 1968 and 1974, and now all passenger trains are electrified. Rapid trains that run directly between the Yokosuka Line do not only run directly on the Sobu Main Line, but also on the Narita Line, Sotobo Line, Uchibo Line, and other lines, and local trains west of Chiba enter the Chuo Line at Ochanomizu and run directly to Nakano and Mitaka. In 1987, following the privatization of the Japanese National Railways, it became part of the East Japan Railway Company.

[Eiichi Aoki and Ryo Aoki]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

東京都東部から千葉県北部を走る東日本旅客鉄道の線路名称。東京―銚子(ちょうし)間120.5キロメートル、御茶ノ水―錦糸(きんし)町間4.3キロメートルよりなる。小岩―金町間8.9キロメートルと、小岩―越中島貨物間11.7キロメートルの貨物線がある。錦糸町―千葉間34.4キロメートルが複々線、佐倉―銚子間65.2キロメートルが単線、その他は複線、全線直流電化。千葉県北部(下総(しもうさ)台地、九十九里平野)と東京を結ぶ幹線鉄道で、沿線には市川、船橋、千葉、四街道(よつかいどう)、佐倉、八街(やちまた)、八日市場(ようかいちば)、旭(あさひ)、銚子などの都市がある。1894~1904年(明治27~37)総武鉄道によって両国橋(現、両国)―銚子間を開業、1907年国有化された。1932年(昭和7)御茶ノ水―両国間を開業し、1972年(昭和47)東京―錦糸町間の地下新線が開通して、快速電車の運転を開始した。1968年および1974年に千葉―銚子間の電化が完成し、現在全旅客列車が電車化されている。横須賀線との間に直通運転される快速電車は総武本線だけでなく、成田線、外房(そとぼう)線、内房(うちぼう)線などにも直通し、また千葉以西区間の各駅停車電車は御茶ノ水より中央線に乗り入れ、中野、三鷹(みたか)方面に直通運転される。1987年、日本国有鉄道の分割民営化に伴い、東日本旅客鉄道に所属。

[青木栄一・青木 亮]

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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