Not that I mind but I notice a serious lack of speed limit signs. So how are you supposed to know how fast you may go? Is it like the autobahn in Germany? I have noticed my GPS in the truck tells me if I am over the speed limit and it has corresponded with signs that I did see in Ubon. But my house is near road 24 or highway 24 or whatever they call it. And it is a pretty good stretch from Det Udom to Nakhon Ratchatsma (sorry for spelling) Not one speed limit sign that I have seen. My GPS says 70 in most places and 30 when going through the Bahns.
So is there general reference? Or is that what it said in my little Thai driving book that I was supposed to study before I took my test?