I have a silly question about Bangkok Blue Line MRT

[ethanhunt 195]

I have traveled on the BTS Sky-train a fair few times, be it the Sukhumvit or Silom line, very convenient for some of the major hot spots. On the other hand have never actually used to Bangkok MRT underground service. 

Hence this silly question, as I look at the MRT map it shows me that the blue line (seems to be the main arterial line) is kind of a loop, crossing the river twice.

What I want to know is whether the train lines move in a singular direction or there are lines in the opposite direction too.

Looking at the map I can understand, for example that I can go to Silom/Lumpini or any other station in that direction from Sukhumvit but can I travel in the reverse direction too, i.e from Silom to Sukhumvit or do the trains move one direction only going all the way across the river & then looping back from the northern end of the city touching stations like Bang Sue/Lad Phrao etc etc.

Kind of a silly question but TIT.

 

[Ropey 1,982]

Yes, they go both directions. The mrt doesn't accept rabbit card however, they are owned by a different entity to the BTS.