| Nambu Line | |||
|---|---|---|---|
| JN | |||
 The Nambu Line E233-8000 series EMU in October 2020 | |||
| Overview | |||
| Native name | 南武線 | ||
| Owner | .svg){kind=logo} JR East | ||
| Locale | Tokyo,Kanagawa prefectures | ||
| Termini | |||
| Stations | 26 (main line), 3 (branch line) | ||
| Service | |||
| Type | Commuter rail | ||
| Depot(s) | Nakahara | ||
| Rolling stock | 205-1000 series,E127-0 series,E233-8000 series,E233-8500 series | ||
| Daily ridership | 840,241 (daily 2015)[1] | ||
| History | |||
| Opened | 1927 | ||
| Technical | |||
| Line length | 45.0 km (28.0 mi) | ||
| Number of tracks | Double-track | ||
| Track gauge | 1,067 mm (3 ft 6 in) | ||
| Electrification | 1,500 V DCoverhead catenary | ||
| Operating speed | 95 km/h (60 mph) | ||
| Train protection system | ATS-S | ||
| |||
TheNambu Line (Japanese:南武線,romanized: Nanbu-sen) is a Japanese railway line which connectsTachikawa Station inTachikawa, Tokyo andKawasaki Station inKawasaki, Kanagawa. For most of its length, it parallels theTama River, the natural border between Tokyo and Kanagawa prefectures. It lies along theTama Hills. It is part of theEast Japan Railway Company (JR East) network. The line forms part of what JR East refers to as the "Tokyo Mega Loop" (Japanese:東京メガループ) around Tokyo, consisting of theKeiyo Line,Musashino Line, Nambu Line, and theYokohama Line.[2] The name refers to the southern (Japanese:南) part of the ancient province ofMusashi (Japanese:武蔵) (now Tokyo and northern Kanagawa prefecture), through which the Nambu Line runs.
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"Rapid" service trains (two trains per hour between 10 a.m. and 4 p.m) do not stop at Shitte, Yakō, Hirama, Mukaigawara, Tsudayama, Kuji, Shukugawara, Nakanoshima, Yanokuchi, Minami-Tama, Nishifu, Yaho, Yagawa, or Nishi-Kunitachi. All other trains except for some seasonal services are "Local" services, stopping at all stations.
| No. | Station | Japanese | Distance (km) | Transfers | Location | ||
|---|---|---|---|---|---|---|---|
| Between stations | Total | ||||||
| JN02 | Shitte | 尻手 | - | 0.0 | JN Nambu Line (main line) Nambu Line (freight branch) | Saiwai-ku, Kawasaki | |
| JN51 | Hatchōnawate | 八丁畷 | 1.1 | 1.1 | KK Keikyu Main Line Tokaido Main Line freight branch (forTsurumi) | Kawasaki-ku, Kawasaki | |
| JN52 | Kawasaki-Shinmachi | 川崎新町 | 0.9 | 2.0 | |||
| JN53 | Odasakae | 小田栄 | 0.7 | 2.7 | |||
| JN54 | Hama-Kawasaki | 浜川崎 | 1.4 | 4.1 | JITsurumi Line Tokaido Main Line freight branch (for Kawasaki Freight Terminal) | ||
The "Shitte crossover" (尻手短絡線,Shitte-tanraku-sen) connects Shitte Station and Shin-Tsurumi Yard on the Tōkaidō Main Line (Hinkaku Line) and theMusashino Line. Freight trains operating betweenTokyo Freight Terminal and northern Japan operate on both branch lines.
As of 1 October 2016[update] the following fleet ofelectric multiple unit (EMU) trains is used on Nambu Line services, with all trainsets based at Nakahara Depot.[4]
From 15 March 2017, the last remaining 209 series trainset, set 53, was replaced by a six-carOme Line andItsukaichi Line E233-0 series set 670 modified and renumbered to become E233-8500 series set N36.[7]
The privateNambu Railway opened the line in five stages between 1927 and 1930 (freight branches are omitted):[9]
Passenger trains utilisedelectric multiple units (EMUs) from the beginning. Freight initially consisted primarily ofgravel hauled from theTama River. When the railway reached Tachikawa and made connection with theŌme Electric Railway,limestone became one of the main freight commodities. The railway was controlled byAsano zaibatsu, which enabled the transport of limestone from its own quarry in Western Tokyo to its cement plant in Kawasaki without using the government railways.[10]
On 1 April 1944, the railway was nationalised by the imperial government and became the Nambu Line ofJapanese Government Railways. After the end ofWorld War II, there were several calls for the privatisation of the line, but the line remained a part of theJapanese National Railways (JNR) until its privatization in 1987.[10]
The postwar growth of the Tokyo urban area resulted in the conversion of most of the farmlands along the Nambu Line into residential areas and increased the passenger traffic on the line. Freight traffic reduced after the opening of theMusashino Line (parallel to the Nambu Line) in 1976 and the discontinuance of the limestone freight in 1998, except for the Nambu Branchline, which remains a major freight route.[10]
Limited-stop "Rapid" services between Kawasaki and Noborito with stops at Musashi-Kosugi and Musashi-Mizonokuchi started on 15 December 1969, but were discontinued by the timetable revision on 2 October 1978.[11] After 33 years, Rapid services between Kawasaki and Tachikawa with more stops started on 9 April 2011, postponed from the originally scheduled 12 March due to the2011 Tōhoku earthquake and tsunami.[12]
On 20 August 2016, station numbering was introduced with Nambu line stations being assigned station numbers between JN01 and JN26.[13][14] Numbers increase towards in the westbound direction towards Tachikawa. In addition, station numbers JN51 to JN54 were assigned to the branch line stations with numbers increasing in the direction of Hama-Kawasaki.
From 15 March 2025, Nambu line started operation as "wanman" (One-man)driver-only operation.[15]
| Shinkansen | |
|---|---|
 JR East linespassing through Central Tokyo | |
 Tokyo Metro | |
 Toei Subway | |
 Yokohama Municipal Subway | |
| JR East lines in satellite cities or suburbs | |
 JR Central linesin satellite cities or suburbs | |
 Keikyu | |
 Keio | |
 Keisei | |
 Odakyu | |
 Seibu | |
 Sotetsu | |
 Tobu | |
 Tokyu | |
| Other commuter rail lines | |
| Trams | |
| Monorails | |
| People movers | |
| Hinterland | |
| Funiculars and aerial lifts | |
 Bus | |
| Public ferries | |
| Major terminals | |
| Miscellaneous | |
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