In addition, the west exit station building was abolished due to the construction of the east-west connecting road, and the ticket gates were concentrated on the second floor and underground except for some. Many of the long concourses under the elevated tracks that once existed are now commercial facilities.
The station building is one of the few stations whose front exit is the Shinkansen exit. It was converted to a bridge in October 2006, and its main functions, including Shinkansen communication, are installed on the second floor.