Being one of Bangkok’s heavy mass rapid transit, the M.R.T. Chaloem Ratchamongkhon Line (The MRT System) has become the first metro in Thailand because its initial system section of Hua Lamphong to Bang Sue is the first railway system in Thailand that kept on underground level.
The MRT System starts from Bangkok Railway Station (Hua Lamphong) along Rama 4 road, crosses Samyan intersection, Silom intersection and Wireless intersection, turns left to Ratchadaphisek Road at Rama 4 intersection, passing Queen Sirikit National Convention Center to Asoke-Sukhumvit intersection, Asoke-Phetchaburi intersection, Rama 9 intersection, Huai Khwang intersection, and Sutthisan intersection, then turns left to Lat Phrao road at Ratchada-Lat Phrao intersection, faces to Lat Phrao intersection, Phahon Yothin road, Chatuchak Park, Mo Chit Northern Bus Terminal (Old), and turns right to Kamphaeng Phet road, passing The Marketing Organization for Farmers (MOF) market, and finally ends at Bang Sue Railway Station.