I should have mentioned this before. Thailand is not a wheelchair friendly country. It's difficult to get around Chiang Mai on foot. Sidewalks are broken, manhole covers are missing, curbs can be high, and the sidewalks and sometimes parts of the streets are used mainly as extensions of shops, not as places to walk. There is a pedestrian light that allows only 8 seconds to cross a four-lane road. Motorcycles don't stop for lights, and sometimes drive on the sidewalks. Cars often run lights, too. Since they can bribe their way out of most offences, traffic laws aren't observed. Drivers licenses are obtained by paying a bribe, not by passing a driving test. I don't remember any ramps, but I did see a couple of people in wheel chairs, so it must be possible to get around.