On the Otsu Line, the commercial operation of model 80 electric cars, which had been used exclusively for the Keishin Line, model 260 electric cars, which had been used for both the Keishin Line and the Ishiyama-Sakamoto Line, and Keihan model 350 electric cars that had been used exclusively for the Ishiyama-Sakamoto Line, was terminated and model 600/700 electric cars became used exclusively for the Ishiyama-Sakamoto Line.
京津線専用の80形電車、京津線・石山坂本線用の260形電車、石山坂本線専用の京阪350形電車の大津線内での営業運転を廃止し、600形・700形電車を石山坂本線専用とする。