Naniwasuji Line
The Naniwasuji Line (なにわ筋線, Naniwasuji-sen) is an underground heavy rail line scheduled to open in the middle of 2031, which will run north-south through central Osaka, primarily under the avenue Naniwasuji. It has long been pursued by West Japan Railway Company (JR West) and Nankai Railway in order to connect the JR Yamatoji Line (Kansai Main Line) and Nankai Main Line with Shin-Osaka Station, greatly enhancing both companies' connections to Kansai International Airport and Wakayama Prefecture.