GIS-based research on optimal railway network for mineral transport in North Korea

Jangwon Suh1, Sung-Min Kim2, Yosoon Choi3, MyeongChan Oh4, Aran Yang4, Jae-Joon Song4 and Hyeong-Dong Park4, (1)Kangwon National University, Energy Engineering, Chuncheon, Korea, Republic of (South), (2)Kangwon National University, Energy Engineering, Samcheok, South Korea, (3)Pukyong National University, Busan, Korea, Republic of (South), (4)Seoul National University, Energy Resources Engineering, Seoul, South Korea