Government of Cambodia launches feasibility study to upgrade rail lines to HSR May 6, 2022 | Asia Pacific News, News The Government of Cambodia has launched a feasibility study to upgrade two 1,000 mm gauge lines to high-speed railways. The lines together span 612 km. The first line extends from Poipet to Phnom Penh... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password