The trains are six cars long in the case of through-trains that go directly to the Subway Line and the trains operated in a part of the section between Kyoto Station and Shin-Tanabe Station during the rush hours, while the other trains are four cars long.
編成両数は地下鉄直通の全列車と、ラッシュ時などの京都～新田辺間の一部の区間運転列車が6両編成で、その他は4両編成である。