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Keio Logo

The Keio logo.

Keio Corporation is a private railway company which operates the Keio Electric Railway, often shortened to Keio or KTR; it is the central firm of the Keio Group. The company is based in the Tokyo region and connects Shinjuku to Tokyo's western suburbs such as Chōfu, Tama and Hachiōji.

The name Keio is formed by taking a character from the places through which the railway runs; Tokyo and Hachiōji.

The railway's origins date back to 1905 when it was founded as the Nippon Electric Railway, but was renamed to become the Musashi Electric Railway the next year and then became the Keio Electric Tramway in 1910. The company's main line (today's Keio Main Line) was completed in 1933, while what is the Inokashira Line today was opened in 1933 and operated by a separate entity known as the Teito Electric Railway. The Teito Electric Railway and Odawara Kyūkō Electric Railway (today's Odakyu Electric Railway) would merge in 1940 to become Tōkyō Kyūkō Dentetsu (today's Tokyu Corporation).

Both the Inokashira and Keio Lines were spun off to another entity known as the Keiō Teito Electric Railway, or KTR, in 1947; while the "Teito" portion of the name was dropped entirely in 1998 to become the Keio Electric Railway, KTR placards can still be seen occasionally.

The Keio Corporation operates the Keio Liner services, reserved-seat services hauled by 5000 series sets. The Keio Line uses a rather strange 1,372 mm (4 ft 6 in) gauge; this gauge is shared with the Toden Arakawa Line, Tokyu Setagaya Line and Toei Shinjuku Line; the Inokashira Line uses 1,067 mm (3 ft 6 in) as its gauge.

References[]

Keio rolling stock
Active Keio Main Line 5000 (gen 2)700080009000
Inokashira Line 1000 (gen 2)
Non-revenue KuYa 900 "DAX"DeYa 901/902
Withdrawn Keio Main Line Large-sized vehicles: 220KuHa 1200DeHa 1700DeHa 171018002000 (gen 1)260027005000 (gen 1)51006000
Medium-sized vehicles: DeHa 2000 • KuHa 2100DeHa 2125DeHa 2150DeHa 2200DeHa 2300DeHa 2400DeHa 2500
Non-revenue: DeNi 2900DeNi 2910
Keio Electric Tramway 1 (gen 1)1 (gen 2) • 7 • 913151923110125150200300 • 400 • No. 500501
Inokashira Line Keio: 1000 (gen 1)SaHa 1250DeHa 1460DeHa 1750DeHa 1760DeHa 1800DeHa 19003000
Transferred from Teito Electric Railway: KuHa 1200DeHa 1400KuHa 1500
Future Keio Main Line 2000 (gen 2)
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Major 16 private railways Kantō Region: KeikyuKeioKeiseiOdakyuSōtetsuSeibuTobuTokyo MetroTokyu
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