In the railway context I believe SRT is government operated including track and trains so they follow a mandate rather then regulation. I took a new train from BKK to Hua Hin a few months ago, quite a pleasant ride to be fair. The cables are a problem, but I suspect it led to faster broadband and FFTH rollout, to give an example I was one of the first True customers and they ran a coaxial cable about 0.25km to the house, it took less than two hours, you couldnt do that if it was underground. Sometimes these things work.