I have just returned from Gumbet, we went on a Dolmus twice and there was plenty of people standing on the Dolmus's when we were on them.

This is a new ruling in Turkey that the driver of the bus in not to allow more to get on if the bus is full. But of course not all drivers pay attention to this fact. It is however a smart thing to follow for safety reasons. Think about this in the heat of the summer over-packing people in tiny spaces like sardines. A little smelly don't you think????