KNR begins preliminary feasibility study for Manila LRT-2 extension, Philippines August 6, 2021 | Asia Pacific News Korea National Railway (KNR) has started the preliminary feasibility study to extend Line 2 of the Manila Light Rail Transit (LRT) network. This extension will span 5.64 km and will involve an investm... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password