A commuter: a person who regularly travels to and from work or school, often by train, bus, or car.
朝のラッシュ時は通勤者で電車が非常に混雑する。
During the morning rush hour, trains become very crowded with commuters.
自治体は通勤者のために駐輪場を整備した。
The municipality built bicycle parking facilities for commuters.
通勤者の移動パターンを分析して、路線の改善が行われた。
Commuter movement patterns were analyzed and routes were improved accordingly.