Counterpoint: the road I live on is 30mph, it is 30 because houses are less than 50 feet from the road and cars going faster than 30 are really loud from wind resistance and tire noise. Cars tend to go 45+ frequently and we have requested speed mitigation. We were told because we have an EMS and fire station on our road it is considered a main road so we can't have speed bumps or other measures. So other than enforcement by camera or officer how do you suggest they get the speeders to respect the speed limits?
And to add to that, cars we're going so fast and we have so many accidents that during the next road resurfacing they were going to remove our on street parking and replace it with a center lane so those that are speeding or passing in the bike/parking lane can now pass on the center turn lane even though that is illegal to pass in a turn lane. They were just gonna turn a blind eye to that law.