‘철도지하화’ 수도권에 부산·대전도 나섰다…관건은 ‘사업성’ / KBS 2024.10.29. KBSNews 0 21 10.29 07:07 https://www.youtube.com/watch?v=16KDberwb7k + 4 https://www.youtube.com/feeds/videos.xml?channel_id=UCcQTRi69dsVYHN3ex… + 4 ‘철도지하화’ 수도권에 부산·대전도 나섰다…관건은 ‘사업성’ / KBS 2024.10.29.