My biggest concern is that my local government really, really loves to lower speed limits so it can set speed traps. This road, which is long and straight with large shoulders and only a few driveways (more like gravel roads), used to be 55 mph (an "End 35 MPH" zone), but has, over the years, been taken down to 45 mph, and a similar nearby road from 50 mph to 40 mph. I have never in my life seen a road that gets surveyed as frequently as these roads, so I'm concerned that the increased flow of drivers going 10 mph below the speed limit is going to result in a further reduced posted speed limit.
My second concern is the number of tailgaters that get jammed up behind these people. This will eventually result in an accident, as the road-sign-ignorant artery-cloggers likely are going to slam on their brakes because Google also has the destination driveway in the wrong place or wrong side of the road, or they spot a deer near the road, or a squirrel jumps in front of them, etc.
I suppose if I want to do anything about this, then I should figure out how to help Google with the development of their product, else suffer the consequences. Always obliged to do Google's ground-level product development for them.
I was just curious if anyone else has this problem of the speed limits in Google Maps being too low? For me, it isn't just the one road that is inaccurate. I drove around and found that Google likes to give speed limits that are 5-15 mph below the posted speed limit, except in the most heavily trafficked areas.