Driving in Chiang Mai

The traffic in Chiang mai on Saturday was fine.  I was apprehensive about driving and finding my way around, but all went well.  The old city is surrounded by a moat.  The ruins of the walls can just be seen in the background in this photo.  There is a one way ring road system on either side of the moat, so it can be a bit confusing working out how where you can do a U turn to head in the desired direction.
Traffic was steady and remarkably calm, no tooting horns and no road rage, cars and bikes did cut in, but drivers gave way- all very polite.