March 24, 2001: With the timetable revision, the train operation system that had been practiced since the inauguration underwent the following drastic changes: the denomination of the conventional limited express was changed to the Commuter Limited Express and the rapid express to rapid limited express, respectively; and the limited express and special limited express, which operated in the tourist seasons with more stops than the rapid limited express but fewer stops than rapid express, were introduced.
2001年（平成13年）3月24日ダイヤ改正により、開業以来続いた列車体系を大幅に変更し、従来の特急を通勤特急に、快速急行を快速特急に改称、停車駅が快速特急より多く快速急行より少ない特急および行楽期の臨時特急を新設。