Ōsaki Station 3.61

is a railway station in Shinagawa, Tokyo, Japan, jointly operated by East Japan Railway Company (JR East) and Tokyo Waterfront Area Rapid Transit (TWR).LinesŌsaki Station is served by the following JR East lines. Saikyō Line Shōnan-Shinjuku Line Yamanote LineIt also forms the northern starting point of the TWR Rinkai Line to. Most Saikyō Line trains operate through to Shin-Kiba on the Rinkai Line.Station layoutThe station has four island platforms serving eight tracks. Platforms 1 to 4 are for the Yamanote Line, and 5 to 8 are shared by the Saikyō Line, the Shōnan-Shinjuku Line, and the Rinkai Line. Ōsaki is one of the stations on the Yamanote Line loop where trains are put into and taken out of service. It therefore has four tracks (two in each direction) for the Yamanote Line so as not to interfere with continuing trains (trains go several rounds before being taken out). Chest-high platform edge doors were introduced on the Yamanote Line platforms from 22 December 2012.There are two sets of ticket barriers: the "north" and "south" gates. The north gate provides access to the east and west exits, while the south gate provides access to the new east and new west exits.Platforms|}FacilitiesThe station has a "Midori no Madoguchi" staffed ticket office. Toilet facilities are located inside the ticket barriers, close to the north gate.