The development of this bypass is being promoted in order to relieve congestion on the Keihan National Highway, whose traffic volume has exceeded its capacity, and on the section between the Suita Junction/Suita Interchange of the Kinki Jidoshado Expressway and the Kadoma Interchange (the Kinki Jidoshado Expressway) (as well as the congestion occurring around the Tennouzan Tunnel and the Kyoto Minami Interchange of the Meishin Expressway, as associated with the heavy traffic in the section mentioned above).
飽和状態にある京阪国道および近畿自動車道の吹田ジャンクション・吹田インターチェンジと門真インターチェンジ(近畿自動車道)間の渋滞緩和（加えて、これに付随する名神高速道路の天王山トンネル付近と京都南インターチェンジ付近の渋滞緩和）を目的として整備が進んでいる。