Speed-reducing measures just don’t have much of an impact on overall safe driving behaviors, and that dangerous drivers are going to drive dangerously no matter how fast the speed limit and green light sync are, that's pretty much a given.

In another county, somebody decided they wanted to screw with a 2 lane road out in the country and they narrowed the lanes - didn't change the existing 40mph limit, not putting in space in the median, but squeezing the oncoming lanes together in the middle. Said it would "increase safety" through reduced speed, meanwhile the lanes were so narrow that school buses had to drive over the rain/rumble strips in many places to not cross the center line. Sometimes BS is just BS, a politician wanted it, so a politician got it. I called them on it, asked to see the studies backing up their statements, they didn't have any.