After the subway facilities were completed, Kyoto Kosoku Railway Co., Ltd., bought the subway facilities from the Japan Railway Construction Public Corporation using a 25-year installment plan in order to lend them to the Kyoto Municipal Transportation Bureau, which would in turn operate the section between Daigo and Nijo integrally, and accordingly the Kyoto Municipal Transportation Bureau became a Type I Railway Business Operator for the sections between Daigo and Misasagi and between Sanjo-keihan and Nijo, as well as a Type II Railway Business Operator for the section between Misasagi and Sanjo-keihan, while Kyoto Kosoku Railway Co., Ltd., became a Type Ⅲ Railway Business Operator for the section between Misasagi and Sanjo-keihan based on the Railway Business Act, which had taken effect after the abolishment of the old local railway law when Japanese National Railways was split and privatized on April 1, 1987, whereby Keihan Electric Railway was also positioned as a Type II Railway Business Operator; therefore, the idea of continuing passenger services in the section between Misasagi and Sanjo on the Keishin Line, borrowing the subway facilities from Kyoto Kosoku Railway Co., Ltd., in cooperation with Kyoto Municipal Transportation Bureau to underground and change the route of the relevant section was re-examined; however, the parties involved decided to follow the established policy due to overhead expenses.
そして、鉄道施設の完成後、京都高速鉄道が日本鉄道建設公団から25年間の分割払いで鉄道施設を譲り受け、京都市交通局に貸与し、京都市交通局が醍醐～二条間を一体的に運営することになり、1987年4月1日の国鉄分割民営化によって、それまでの「地方鉄道法」が廃止され、新たに「鉄道事業法」が施行されたことによって、京都市交通局が醍醐～御陵間と三条京阪～二条間の第一種鉄道事業者、御陵～三条京阪間の第二種鉄道事業者となり、京都高速鉄道が御陵～三条京阪間の第三種鉄道事業者となったことから、京阪電気鉄道も第二種鉄道事業者という経営形態が確立されたため、京津線の御陵～三条間の旅客営業を廃止せず、京都市交通局とともに京都高速鉄道から鉄道施設を借り受け、同区間の地下化、ルート変更する形で旅客営業を継続してはどうかと再検討されたが、諸経費などの絡みで既定方針どおりとなった。