Location: Route 11 and Route 114, Pa Sak Semi-enhanced kilometer post after Route 114. Location: Route 11 and Route 121, Chai Sathan Shortly thereafter we’ll approach Route 121. Exit left for 121 west. Stay straight for 11 north.  N to TH-1141/TH-1317, S to TH-1033  W to TH-106, E to TH-1317  W to TH-116