In this Article, several lines are dealt with together, such as the now-defunct old line via Ogura and the present line via Okubo as well as other lines related to the Okubo line, including those between Keihan Yodo and Kumiyama Danchi (housing complex) and other sections.
又本項では過去に運行していた小倉経由と現在も運行している大久保経由の路線、及び大久保経由の関連系統として京阪淀-久御山団地等を記述する。