It is said that this track was constructed in 1944, during World War II, in order to bolster cooperation with other transportation means, assuming that the transportation network might be disrupted by bombardment from B-29 airplanes (side tracks for Kyoto City Trams were also constructed).
これは第二次世界大戦中の1944年（昭和19年）に、B-29の爆撃で交通網が分断された場合に備え、他の交通機関との連携強化ために敷設されたとされる（京都市電の側線も造られた）。