In consideration of the 1969 boost in trolley voltage to 1500V, the Kintetsu Kyoto Line ended its communal use of Tanbabashi Station with KER because the grade crossing on the station premises became the obstacle to the increasing of its train service, and instead Kintetsu-Tanbabashi Station was set up independently on the site of the former Horiuchi Station, so the Kintetsu Kyoto Line and Keihan Main Line were separated and the mutual extension operation was ended.
近鉄京都線の架線電圧1500V昇圧（1969年実施）を控え、駅構内の平面交差が列車増発の差し支えになることから京阪電鉄との共同使用をやめ、かつての堀内駅跡に近鉄丹波橋駅を設置して両路線を分離し、相互直通運転を廃止した。