skytrain mrt purple line running go to bangkok across chao phraya river at phra nang klao bridge station in nonthaburi, thailand

architecture arrival asia asian authority bangkok bridge bts building business capital chao city commuter commutes connection construction departure fast high industrial industry infrastructure journey klao line logistic mass metro metropolis mrt mrta nang network nonthaburi passengers phra phraya platform public purple rail railroad railway rapid river route run running skytrain speed station structure subway system technology thailand track traffic train transit transport transportation travel urban vehicle