“Twenty is Plenty” is more than a clever rhyme

The subject promised for today has been shoved aside in favor of a subject that abruptly gained urgency.

I’ve previously written about the “Twenty is Plenty” movement. Adherents promote the argument that most vehicular speeds within towns should be limited to twenty miles per hour. It’s a crusade that has gained a foothold in […]


Narrowing the spectrum of street users


I’ve written several times about “Twenty is Plenty”, an initiative in many towns, mostly European but spreading toward U.S., to reduce speed limits on most streets to 20 miles per hour. A recent sidewalk encounter gave me another reason to think that Twenty is Plenty is an enlightened concept.

One of my first […]

Durable Growth, Transportation

Intro to urbanism, part eight: Retasking streets

Roberto Clemente Bridge, with pedestrian walks, in PIttsburgh

Continuing with my New Year’s “Intro to Urbanism” (previous posts were one, two, three, four, five, six, and seven), today, I’ll offer a few words about how streets should function in urbanist places.

Roads were never fully egalitarian places. We’ve read too many accounts of peasants […]


Stopping for pedestrians

Typical North Bay arterial

A reader recently asked for my advice about adding crosswalk markings in his community. I provided contact information for a key contact in his town. But I also provided a warning about the response he might receive.

The crosswalk location of interest to him seemed, at first glance, to be […]

Durable Growth

Can twenty be plenty?

Typical California arterial street

In my last post, I wrote about how our grandparents and great-grandparents yielded our streets to the automobile in the early 20th century, with the result that we’re no longer even allowed to hold block parties in the street.

Before the advent of the automobile, most street uses occurred at […]