Shinjuku Station functions as
the transportation hub for rail traffic between central Tokyo and Tokyo's
western suburbs. It links the JR intercity routes with Tokyo's commuter rail network and metro lines.
Not only is Shinjuku Station the busiest train station in Tokyo, it is
also the busiest station in the entire world! Over three million people
pass depart from the train station each and every day. In physical size,
Shinjuku Station ranks as the second-largest station in the world, after
Japan's Nagoya
Station.