(), also known as or, more recently, , is a private railroad that connects inner Tokyo to Kawasaki, Yokohama, Yokosuka and other points on the Miura Peninsula in Kanagawa Prefecture. It also provides rail access to Haneda Airport in Tokyo. means the - area. The company's railway origins date back to 1898, but the current company dates to 1948. The railway pioneered Kantō region's first electric train and the nation's third, after Hanshin Electric Railway and Nagoya Electric Railway (Meitetsu) with the opening of a short long section of what later became the Daishi Line in January 1899. It is a member of the Fuyo Group and has its headquarters in Yokohama. The company changed its English name from Keihin Electric Express Railway Co., Ltd. to Keikyu Corporation on 21 October 2010. Trains on the Main Line have a maximum operating speed of , making it the third fastest private railroad in the Tokyo region, after the Keisei Skyliner and the Tsukuba Express. The track gauge is (Standard gauge), differing from the more common Japanese track gauge of . Lines The Keikyu Main Line runs between south area of Tokyo, Kawasaki, Yokohama, and Yokosuka. Shinagawa Station is the terminal station in Tokyo of this line. Its limited-stop service competes with JR East's Tōkaidō Main Line and Yokosuka Line. From Sengakuji station, Keikyu trains run into the Toei Asakusa Line and Keisei Electric Railway (to Narita Airport) and Hokuso Railway (to Chiba newtown area) lines. Stations There are a total of 73 “unique” stations (i.e., counting stations served by multiple lines only once) on the Keikyu network, or 77 total stations if each station on each line counts as one station. Rolling stock Active Keikyu currently has 802 vehicles available for passenger revenue service. 600 series (introduced 1994) New1000 series(In Japanese:新1000形) (introduced 2002) 1500 series (introduced 1985) 2100 series (introduced 1998) Retired 230 series (introduced 1930) 400 series (introduced 1965) 500 series (introduced 1951) 700 series (1956–1986, reclassified 600 series from 1966) 700 series (II) (1967–2005) 800 series (introduced 1958, reclassified 1000 series) 1000 series (1959–2010) 2000 series (1982–2018) 800 series (1978–2019) Accidents Since 1997, Keikyu has had five accidents, all of which were on the main line, in the vicinity of Yokosuka and Yokohama. On 7 April 1997, at about 2:47 pm, the first three cars of a four-car train derailed after colliding with a mudslide, resulting in 22 people