It changes from place to place. Off the interstate, I know the limit and I drive it (unless it is 15MPH or 20MPH, no can do, will usually keep it under 35 and have never been tickted for that) However, if it says 35MPH, I may push 40, if it says 45MPH, I will drive 45, 55MPH maybe 60. There is something about 35MPH and 45MPH in localities that they seem to be picky about. They never wseem to expect anyone to actually drive 15 or 20 MPH or 55MPH. I don't knw why, but that has been my experience. In school zones, all bets are off.. if the lights are flashing, I drive what the sign says.
"Road construction areas", I don't know how many there are in GA but they are everywhere, all the time. There may be workers, there may not be but it don't matter, they can ticket you anyway but you can usually get away with 10 over if orkers are not present (mostly because there are always other drivers who insist on driving 20 over). In Alabama, road construction signs say you get the extra fine if workers are present, in GA it does not matter... on a side note I wish that they would cut back to maybe 15 or 20 cnstruction sites and put all their workers and effort into them and get it DONE. Mst sites have either no one, or maybe two or three workers. (pet peeve there). For example, the Cartersville exits on I-75, north of Atlanta. They decided to "improve" the exit ramps maybe 12 or 15 years ago... it took them over two years to complete work on three exit ramps because most of the time there was nothing there but orange cones and signs.
I agree with Herb, on the interstate anyway... I use the cruise control. I set it on 80/81 MPH and never have a problem. If I don't set it I will look down and see I am going over 85... so I use it. People who don't use it are a PITA, they don't necessarily want to go fast, they just want to go faster than me... until they get in front of me. Then when they get beside other cars or trucks they ALWAYS slow down, I really don't think it is intentional, too many people do it. My cruise control brings me up short of their tailpipe and I have to disengage it to back off. Then once they get past the "herd" they find that they can go faster than 80. That is one instance where I will hit 90, downhill where I can see there is no patrol car, and I will pass them, get a bit ahead and reset my cruise. In any case, at least on the interstates around here, 80 is not enforced, there are always people going 85 or 90 and the officer would MUCH rather catch them because the fines are a lot more. I pretty much ignore them and just go about my business, I don't slow down from 80 either, they never even look at me. They lower the radar gun and keep looking down the highway. For some reason they seem to allow more speeding Between ATL and Chattanooga than they do between Macon and Florida. I think I have gotten one ticket in the last 30 years on the interstate. A stoplight camera got me a few years ago in Cobb county.
About 15 years ago my father in law had surgery for a cancer they found in his lymph nodes. It happened rather quickly so we got our affairs in order and took off for Gainsvillle, FL. From Cartersville, GA to Gainsville, FL the drive took a few minutes over 3 hours... I was flying low and with lady luck that day.
I don't know but, like I said, I think there is something about 35 and 45 MPH. 55, 65, 75... you can get away with driving a bit over in most places. 25 mph and 20 mph... pfffft.
I am just glad that patrol cars never (well almost never) drive the speed limit. They know that they will cause traffic problems around here if they do, so they fly.
BTW, people who slow down to 55 MPH because they see the blue lights flashing because someone else has been pulled over are morons...
There is a little town on HWY 319 in SOWEGA named Omega... some use 319 to head to Tallahassee. It leaves the interstate at Tifton and goes straight to Tallahassee. In Omega, the limit drops from 55, to 45, to 35 and they enforce it. I got stopped there one Christmas eve going maybe 10 over. Because it was Christmas eve and already night, we were loaded with presents and kids.. the officer gave me a warning and a Merry Christmas. Since then I have always been careful of the limit in Omega. You should too, again it is the 35/45 thing. Being a GA town it is pronounced Oh mee gah not Oh may gah. There is alsoa little town named Berlin outside of Moultrie, it is pronounced Ber l'n, there is no "in" sound to it. I digress ... again.
J