During the third session of the Conference of the Parties (COP3) of the United Nations Framework Convention on Climate Change held in 1997, the through local trains running on the Karasuma Line reached to Takanohara Station using the shared track.
なお、1997年の第3回気候変動枠組条約締約国会議中には烏丸線直通の普通列車が高の原駅まで乗り入れていた。