From around Kanmaki Station (Osaka Prefecture) to Oyamazaki Station, there is an elevated section, which was made in connection with the construction of the Tokaido Shinkansen running in parallel, and during the period of the elevation work from April to December 1963 the company hired the elevated tracks of the Tokaido Shinkansen, which had already been constructed at that time, in order to operate the trains using them.
上牧駅(大阪府)前後から大山崎駅にかけて一部高架区間があるが、これは並行する東海道新幹線の建設に併せて造られたもので、高架化工事中の1963年4月から12月までの間、先に完成していた東海道新幹線の高架線路を借りて列車の運行を行っていたことがある。