Part of the problem is that communities keep lowering the speed limits below recommendations and even the guidelines of law. My father, who has a background in

Part of the problem is that communities keep lowering the speed limits below recommendations and even the guidelines of law. My father, who has a background in urban planning, is fond of, or frustrated enough to point this out. A street that, per our state's code and regulation, should be 45 mph, gets dropped to 40, then to 35. Nothing significant has changed with its facing development and use. But the community, or of some excess of caution or some orthogonal desire for control, keeps ratcheting it down. In other spots, they start putting up stop signs at every block. They aren't really warranted, but in a variety of "think of the children" attitude, perhaps combined with a twist on NIMBY (Not In My Back-Yard) attitude, the through-street needs to "be somewhere else". Until there no longer is a through-street. So fine, have these cars obey the speed limits. But then set reasonable limits, ones that are evidence-based and not politicized.