I believe that stroads should be turned back into Streets, and roads preserved for their transportation function. I’m a Strong Towns member, and fully support the argument that the best solution to stroads is to reconstruct them into streets. #SlowTheCars is the right approach. Key to that approach is that changing speed limits doesn’t do much to slow cars, and that ticketing people for going the design speed instead of the posted speed is often just a pretext for profiling and oppression.
BUT. It will be a long while and trillions of dollars to accomplish that. Undoing the damage of the past is not easy, because the money it would take to fix everything has long since gone into the pockets of those who profited from unsustainable (socially, economically, environmentally) development. We will have to triage, changing the most dangerous places first, and those places with the best chance of becoming walkable, livable, and vibrant second. We may never, and perhaps should never, get to those places that are the model of the suburban experiment. Many suburban places will fail and go back to agriculture. Others will not. But spending a lot of money to fix a suburban stroad, adding sidewalks and bike lanes and street furniture, will be good money after bad because these places won’t ever be dense enough or successful enough to pay back the investment.
Back to speed. It will be a long while before we can lower the design speed of stroads and streets back to the correct speed. In most cases, that design speed should be 20 mph. Occasionally higher or lower, but mostly 20. In the interim, I think that we should reduce the speed of all urban streets, that are not arterials and collectors, to 20 mph. I am not suggested that this limit be tightly enforced, as the point is not enforcement but education and commitment. A community willing to lower the speed limit to 20 is a community willing to think about safety and livability, and to accept that the way we have done thing in the past is absolutely not what we need in the present or future. Setting speed limits to 20 is a message to pay attention and think about consequences. Portland and Seattle have recently reduced some speed limits to 20.