The Musashino Line (武蔵野線) is a railway line operated by the East Japan Railway Company (JR East). It links Tsurumi Station in Yokohama with Nishi-Funabashi Station in Chiba Prefecture, forming a 100. +more6 km unclosed loop around central Tokyo. Passenger operations are limited to the 71. 8 km portion between and Nishi-Funabashi; the Tsurumi to Fuchūhommachi portion, called the "Musashino South Line", is normally used only by freight trains. The line forms part of what JR East refers to as the "Tokyo Mega Loop"(東京メガループ|links=no) around Tokyo, consisting of the Keiyō Line, Musashino Line, Nambu Line, and Yokohama Line.

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Services

Most services on the Musashino Line are local trains making all stops. Some trains continue through the Keiyō Line past Nishi-Funabashi to , or .

Other services include: *Musashino: services operated between Fuchūhommachi/Hachiōji and *Shimōsa: services operated between and / *Holiday Kaisoku Kamakura seasonal service between and *Burari Kamakura and Yokohama Bay Area seasonal service between and *Burari Takao Sansaku seasonal service between and

Station list

Tsurumi Station is considered to be the origin of the Musashino Line; trains going clockwise (toward Nishi-Funabashi) are therefore referred to as heading "down" (下り), while trains going counter-clockwise (toward Fuchūhommachi) are heading "up" (上り). This is often counterintuitive, as it results in through trains to Tokyo being labeled and numbered as "down" trains while on the Musashino Line; however, such trains switch to "up" after joining the Keiyō Line.

All eastbound (for Nishi-Funabashi) passenger trains begin service at Fuchū-Hommachi Station. For details on the Musashino South Line and other branch lines, which are freight-only sections, can be found below the passenger station list.

Musashino Line (passenger)

No. NameJapaneseDistance (km)TransfersLocation
Between stationsTotal
府中本町
0. +more0Nambu Line, Musashino South Line (Freight)FuchūTokyo
FuchūTokyo北府中1. 71. 7
西国分寺Tokyo2. 23. 9Chūō Line (Rapid)Kokubunji
新小平Tokyo3. 57. 4Seibu Tamako Line Musashino Line (Kunitachi Freight Branch)Kodaira
新秋津Tokyo5. 613. 0Seibu Ikebukuro LineHigashimurayama
東所沢2. 715. 7TokorozawaSaitama
N/ANiiza Freight Terminal新座貨物ターミナル駅3. 719. 4NiizaSaitama
新座0. 319. 7NiizaSaitama
北朝霞3. 122. 8Tōbu Tōjō LineAsakaSaitama
西浦和5. 027. 8Musashino Line (Ōmiya Freight Branch)Sakura-ku, SaitamaSaitama
武蔵浦和2. 029. 8Saikyō Line Musashino Line (Nishi-Urawa Freight Branch)Minami-ku, SaitamaSaitama
南浦和1. 931. 7Keihin-Tōhoku LineMinami-ku, SaitamaSaitama
東浦和3. 735. 4Midori-ku, SaitamaSaitama
東川口3. 839. 2Saitama Rapid Railway LineKawaguchiSaitama
南越谷4. 343. 5Tobu Skytree LineKoshigayaSaitama
N/AKoshigaya Freight Terminal越谷貨物ターミナル駅0. 443. 9KoshigayaSaitama
越谷レイクタウン2. 446. 3KoshigayaSaitama
吉川1. 948. 2YoshikawaSaitama
吉川美南1. 749. 9YoshikawaSaitama
新三郷1. 451. 3MisatoSaitama
三郷2. 153. 4MisatoSaitama
南流山2. 055. 4Tsukuba Express Musashino Line (Kita-Kogane, Mabashi Freight Branches)NagareyamaChiba
新松戸2. 157. 5MatsudoChiba
新八柱4. 161. 6Shin-Keisei LineMatsudoChiba
東松戸2. 464. 0MatsudoChiba
市川大野1. 965. 9IchikawaChiba
船橋法典3. 068. 9FunabashiChiba
西船橋2. 971. 8FunabashiChiba
Ōmekaidō Station is approximately 10 minutes walk from Shin-Kodaira Station.

Musashino Freight Branch Lines

NameJapaneseDistance (km)TransfersLocation
Between stationsTotal
Musashino South LineMusashino South LineMusashino South LineMusashino South LineMusashino South LineMusashino South LineMusashino South Line
鶴見-0. 0Tōkaidō Line, Keihin Tohoku Line, Tsurumi Line, Tokaido Freight Line, Takashima Freight LineTsurumi-ku, YokohamaKanagawa
Shin-Tsurumi Yard新鶴見信号場3. +more93. 9Hinkaku Line, Nambu Line Freight Branch (for )Tsurumi-ku, YokohamaKanagawa
Kajigaya Freight Terminal梶ヶ谷貨物ターミナル駅8. 812. 7Miyamae-ku, KawasakiKanagawa
府中本町16. 128. 8Musashino Line (towards Nishi-Kokubunji), Nambu LineFuchūTokyo
Kunitachi Branch LineKunitachi Branch LineKunitachi Branch LineKunitachi Branch LineKunitachi Branch LineKunitachi Branch LineKunitachi Branch Line
Shin-Kodaira新小平-0. 0Musashino Line (towards Nishi-Funabashi)KodairaTokyo
Kunitachi国立5. 05. 0Chūō LineKunitachiTokyo
Omiya Branch LineOmiya Branch LineOmiya Branch LineOmiya Branch LineOmiya Branch LineOmiya Branch LineOmiya Branch Line
Nishi-Urawa西浦和0. 0Musashino Line (towards Fuchūhommachi and Tsurumi)Sakura-ku, SaitamaSaitama
Bessho Yard別所信号場1. 31. 3Saitama
Yono与野3. 64. 9Tohoku Main Line (Tohoku Freight Line)Urawa-ku, SaitamaSaitama
Nishi-Urawa Branch LineNishi-Urawa Branch LineNishi-Urawa Branch LineNishi-Urawa Branch LineNishi-Urawa Branch LineNishi-Urawa Branch LineNishi-Urawa Branch Line
Musashi-Urawa武蔵浦和Musashino Line (towards Nishi-Funabashi)Minami-ku, SaitamaSaitama
Bessho Yard別所信号場Musashino Line Omiya Branch LineMinami-ku, SaitamaSaitama
Kita-Kogane Branch LineKita-Kogane Branch LineKita-Kogane Branch LineKita-Kogane Branch LineKita-Kogane Branch LineKita-Kogane Branch LineKita-Kogane Branch Line
Minami-Nagareyama南流山0. 0Musashino Line (towards Fuchūhommachi and Tsurumi)NagareyamaChiba
Kita-Kogane北小金2. 92. 9Joban Line (towards Toride)MatsudoChiba
Mabashi Branch LineMabashi Branch LineMabashi Branch LineMabashi Branch LineMabashi Branch LineMabashi Branch LineMabashi Branch Line
Minami-Nagareyama南流山0. 0Musashino Line (towards Fuchūhommachi and Tsurumi)NagareyamaChiba
Mabashi馬橋3. 73. 7Joban Line (towards Mikawashima)MatsudoChiba
.

Rolling stock

209-500 series eight-car EMUs (since December 2010) * E231-0 series eight-car EMUs (since November 2017) * E231-900 series eight-car EMU (since 20 July 2020)

Three 209-500 series sets were transferred from the Keiyō Line in 2010-2011, where they were displaced by new E233-5000 series sets and reduced from ten to eight cars per set; eight additional sets were transferred from the Chūō-Sōbu Line in 2018-2019. Between 2017 and 2020, E231-0 series sets were transferred from the Chūō-Sōbu Line and the Jōban Line and reduced from ten to eight cars per set to replace the 205 series. +more In July 2020, the sole E231-900 series set was also transferred from the Chūō-Sōbu Line and reduced from ten to eight cars.

File:Musashino 209-500 M71. jpg|A Musashino Line 209-500 series EMU on a Musashino service in August 2011 File:JR East e231 series Musashino Line 20171127. +morejpg|A Musashino Line E231-0 series EMU in November 2017 File:JR East E231-900 Series Keyo MU1. jpg|Musashino Line E231-900 series in July 2020.

Former

101-1000 series 6-car EMUs (1 April 1973 - 26 October 1986) * 103 series 6-car, later 8-car EMUs (June 1980 - 8 December 2005) * 201 series 6-car EMUs (from 3 March 1986 - November 1996) * 205-0 series 8-car EMUs (from December 1991 - October 2019) * 205-5000 series 8-car EMUs (from 2002 - 19 October 2020)

165 and 169 series EMUs were used on Shinkansen Relay services and later Musashino rapid services until 2002. 115 series EMUs were used on Musashino services from 2002 until the services were downgraded to all-stations "Local" status in December 2010. +more The 205-0 series sets were built from new for the Musashino Line, entering service from 1 December 1991, and have six motored cars per eight-car set. These were the last 205 series sets to be built from new. The 205-5000 series sets were modified between 2002 and 2008 from displaced former Yamanote Line sets by adding new VVVF-controlled AC motors, and have four motored cars per eight-car set.

File:KuMoHa101-902 Tokyo General Depot 20050827. jpg|A 101 series EMU File:103 set E34 Musashino Line Nishi-Kokubunji 20010808. +morejpg|A Musashino Line 103 series (low-cab type) EMU, August 2001 File:Musashino 103 Niiza 20020527. jpg|A Musashino Line 103 series EMU, May 2002 File:201 165 Shinkansen Relay Hachioji 20010801. jpg|A 165 series EMU (right) on a Shinkansen Relay service, August 2001 File:Musashino 115 Hachioji 20040303. JPG|A 115-300 series EMU set on a Musashino service, March 2004 File:JRE-205-0 EMU-MusashinoLine. jpg|A Musashino Line 205-0 series EMU in June 2006 File:JRE 205 5000 musashino. JPG|205 series EMU belonging to the Musashino Line on connecting services on the Keiyō Line, January 2010.

Freight

Locomotive types seen hauling freight trains include the Class EF64, Class EF65, Class EF66, Class EF81, Class EF200, Class EF210, Class EH200, Class EH500, Class DE10, and Class HD300.

History

The Musashino Line was initially envisioned as a "Tokyo Outer Loop Line" in a 1927 railway appropriations bill, but was not built for several decades due to World War II and its aftermath. Construction finally began in November 1965.

In 1967, a train carrying jet fuel to Tachikawa Air Base in western Tokyo exploded while passing through Shinjuku Station. This disaster led to the banning of freight trains on railway lines in central Tokyo and sped the development of the Musashino Line as an alternative route. +more Because most of the line passed through sparsely populated areas, it was initially envisioned as a freight-only line. However, opposition from local residents, at the same time as the violent landowner battles plaguing Narita International Airport, led the railway authorities to agree to passenger service as well.

The first section of the line between and opened on 1 April 1973. Train services were operated using 6-car 101-1000 series EMUs, which were modified specially for the line to comply with government regulations concerning fire resistance of trains operating through long tunnels, as the line included the 4,380 m Higashi-Murayama Tunnel (東村山トンネル) between Shin-Kodaira and Shin-Akitsu stations, and the 2,563 m Kodaira Tunnel (小平トンネル) between Shin-Kodaira and Nishi-Kokubunji stations. +more Services operated at 15-minute intervals in the morning peak, and at 40-minute intervals during the daytime off-peak.

The southern freight-only line from Fuchū-Hommachi to Tsurumi opened on 1 March 1976. The eastern section of the line from Shin-Matsudo to opened on 2 October 1978.

Inter-running to and from the Keiyo Line commenced on 1 December 1988.

From the start of the 1 December 1996 timetable revision, all of the Musashino Line 103 series sets were lengthened from six to eight cars.