At this time, among lines going through Okubo, frequency of service from Keihan Uji to Jonanso, to Kintetsu Okubo and to Midorigahara-guchi was increased from 30 minutes intervals to 20 minutes by extending Line 27 to Keihan Yodo.
尚この時に大久保経由路線の内、京阪宇治～城南荘～近鉄大久保～緑ヶ原口間は昼間時30分ヘッドから27系統の京阪淀への延長により20分ヘッドに増発された。