The central part of something; in cities, often refers to the downtown or core area with shops and activity.
祭りは町の中心部で行われる予定だ。
The festival is scheduled to take place in the town center.
中心部の交通渋滞が朝は特にひどい。
Traffic congestion in the central area is especially bad in the morning.
観光客はまず市の中心部を訪れることが多い。
Tourists often visit the city's central area first.