Traffic police with proper bikes that actually patrol. There are so many problems with traffic in Phuket. Ghost riding, speeding, going too slow, parking in the street, ignoring traffic signals, weaving in and out of traffic, tourists riding bikes that don't know how to or never have ridden a bike, running red lights. I could go on, but the fundamental problem is that there is absolutely no enforcement. None. And all the seminars in the world will not help unless they actually Enforce the Traffic Laws. (if there are any???)