When going to a station in the central area of Kyoto, one must pay both the fare for the Keihan Line section and that for the Tozai Line section if one wants to use Keihan-Yamashina Station, but one should pay only the fare for the Tozai Line if using Yamashina Station on the subway line.
京都市内中心部へ向かう場合、京阪山科駅を利用すると京阪線と地下鉄線の運賃の合算となり、地下鉄山科駅を利用すると地下鉄線のみの運賃となる。