Actual driving speeds

Silly question really. All answers are subjective and arbitrary. You'll get different answers, from different people, for different reasons, taking into account many variables. One person said it best, whatever the posted limit is should be the maximum speed driven and advocated. Anything else could possibly subject you to enforcement actions. I don't dispute the fact that few drivers actually adhere to the posted signs, and I'll concede that driving the limit will get you passed by most traffic, but a speed limit is a speed limit and anything else could potentially expose you to law enforcement, particularly in unfamiliar areas where enforcement could be "to the letter of the law", i.e., speed trap towns like Waldo Florida, as an example. Ultimately people are going to drive what they are comfortable with. Some will adhere to the numbers stated above, others will keep up with the flow of traffic, and others will abide by the speed limits. In the end, only following the speed limit will keep you out of trouble.

This of course is just my opinion only. It's worth what you paid for it.

Safe travels.