Part of the network This covers RapidKL's rail (LRT, MRT, Monorail, BRT Sunway) and bus network plus KTM Komuter, clipped to the Klang Valley — together the core of how Kuala Lumpur residents ride. The Express Rail Link (KLIA Ekspres / KLIA Transit airport trains) isn't included: ERL publishes no GTFS feed, either on its own site or via Malaysia's national open API.