The Bangkok Mass Transit System(BTS) is an elevated rapid transit system in Bangkok, Thailand.The system consists of 34 stations : theSukhumvit Line running northwards and eastwards, terminating at Mo Chit and Bearing respectively, and the Silom Line which serves Silom and Sathon Roads, the central business district of Bangkok, terminating at the National Stadium and Bang Wa. The lines interchange at Siam Station and have a combined route length of 36.45 kilometers.