THERE ARE TWO BTS LINES: <br />SILOM LINE runs west to south, between the National Stadium in the Siam shopping area and Bang Wa in Thonburi (across the Chao Phraya River). <br /> <br />SUKHUMVIT LINE runs north to east from Mo Chit to Bearing. The two lines meet at Siam Station, and also connect at two points with the underground (MRT) – at Sala Daeng Station (Silom Line) and Asok Station (Sukhumvit Line). A new train arrives every 3 - 6 minutes or so between 06:30 and midnight. The last train leaves between 23:30 and 23:50. Fares start at 15 baht for one stop (more info about the BTS Passes). <br /> <br />Note that trains can get pretty full during peak hours (07:00 - 09:00 and 16:00 - 19:00), as the BTS has also become the choice mode of transport for people living and working in Bangkok.