The Bangkok Metro, officially called the Mass Rapid Transit (MRT), is Bangkok's underground metro system. It was constructed under a concession concept.

Air conditions were designed in all 18 stations, starting from Hua Lamphong, Sam Yan, Si Lom, Lumphini, Khlong Toei, Queen Sirikit National Centre, Sukhumvit, Phetchaburi, Phra Ram 9, Thailand Cultural Centre, Huai Khwang, Sutthisan, Ratchadaphisek, Lat Phrao, Phahon Yothin, Chatuchak Park, Kamphaeng Phet and terminating at Bang Sue.

Close Circuit Televition Cameras (CCTV) are provided at strategic location to monitor the security of passengers. Lifts and escalators are provided for all passengers.

It is the most comfortable and convenient to travel in Bangkok.