is a railway station in Funabashi, Chiba, Japan, jointly operated by East Japan Railway Company (JR East), Tokyo Metro, and the Tà Âyà  Rapid Railway. It is the easternmost station of the Tokyo subway network, lying in Chiba Prefecture.
Nishi-Funabashi Station is served by the following lines.
The station consists of six island platforms serving eleven tracks on two levels (another two tracks are used by Sà Âbu Line (Rapid) trains which do not stop at the station). The high-level station serves the Keiyà  and Musashino Lines. The low level is served by the Sà Âbu, Tà Âzai and Tà Âyà  Rapid Railway Lines. The low level can be subdivided into two sections, one served by trains running into Tokyo via the Sà Âbu Line and the other by trains running into Tokyo via the Tà Âzai Line, since all the track connections between the two lines are east of the station.
Platforms 1 and 2 are for SÃ Âbu Line trains for , and , and platforms 3 and 4 for trains for , , , and . Platforms 2 and 3 share the same track and are often used to terminate trains from .
Within the Tokyo Metro section, platform 5 is the main platform for Tà Âyà  services to and , while the few trains from the Tà Âzai Line to Funabashi and Tsudanuma can also leave from here. Platform 6 is mainly used for terminating Tà Âzai Line trains (to , , and ), although it is used for through services in peak hours. Platform 7 is mainly used for Tà Âzai Line trains (mainly for reversing them), and platform 8 is exclusively for Tà Âzai Line trains.
The high-level station consists of platforms 9 to 12. Normally platforms 9 and 10 are used by Musashino Line trains (to , and ), platform 11 is used by trains to Tokyo (via and ) and platform 12 by trains to , and .
The station opened on the Sobu Line on November 10, 1958, initially serving passengers only. It moved into a new station building on December 15, 1968, when the line was quadrupled.
The Eidan Tozai Line arrived here on March 29, 1969, and through service between the two lines commenced. Freight services commenced on April 8.
The high-level station opened on October 2, 1978, when platforms 9 and 10 (presentday 11 and 12) started being used as the terminus of the Musashino Line. On March 3, 1986, platforms 9 and 10 opened for use by the initial section of the Keiyo Line (from here to Chiba-Minato). Freight services ceased on November 1, 1986.
The next part of the Keiyà  Line (Shin-Kiba to Nishi-Funabashi and Minami-Funabashi) opened on December 1, 1988. At the same time, through services began between the Keiyo and Musashino Lines.
The Tà Âyà  Rapid Railway Line opened on April 27, 1996, with through services to the Eidan Tà Âzai Line from the first day.
The station facilities of the Tozai Line were inherited by Tokyo Metro after the privatization of the Teito Rapid Transit Authority (TRTA) in 2004.
The Dila Nishi-Funabashi station building complex opened on January 15, 2005.
In fiscal 2013, the JR East station was used by 130,814 passengers daily (boarding passengers only), making it the 25th-busiest station operated by JR East. In fiscal 2013, the Tokyo Metro station was used by an average of 279,770 passengers per day (exiting and entering passengers). Note that the statistics consider passengers who travel through Nishi-Funabashi station on a through service as users of the station, even if they did not disembark at the station. In fiscal 2011, the Tà Âyà  Rapid Railway station was used by an average of 52,004 passengers daily (boarding passengers only), making it the busiest station operated by the company. The daily passenger figures for JR East and Tokyo Metro in previous years are as shown below.