Skip to Content
Streetsblog USA home
Streetsblog USA home
Log In

Pop-up urbanism, or tactical urbanism as it's sometimes called, seems like an idea that belongs to our era.

false

Streets repurposed as public markets. Parking spaces as parks. Vacant storefronts as temporary art galleries. It's never been hotter.

But this movement actually has 40 years of history, writes Aurash Khawarzad at Network blog Pattern Cities. Its origins can be traced to San Francisco and a woman whose name has been nearly forgotten. Khawarzad writes:

Most urbanists haven’t heard of Bonnie Ora Sherk. Most people capitalizing off of the resurgence of pop-up architecture probably haven’t heard of her either, but she is actually one of the pioneers of “tactical urbanism,” “spontaneous interventions,” and the other forms of unsanctioned public space activity that are extremely important in today’s discourse over how public space is used and allocated.

Her interventions, titled “Portable Architecture,” began in 1970 by essentially doing what’s now known as Park(ing) Day around strategic points in San Francisco. This incredibly prescient intervention foreshadowed a theme in urbanism that would gain widespread support 30 years later: the culture of DIY, combined with place-making in city streets.

Ms. Ora Sherk’s original Portable Architecture installations revealed the potential for artists, and public art, to inspire improvements to infrastructure, but they also revealed the weakness in not skillfully connecting public art projects with how public space plans are developed and implemented.

Elsewhere on the Network today: This Big City reports on how cities are preparing to cope with the effects of climate change. Orphan Road outlines how to build coalitions for dense, transit-oriented developments. And World Streets says that bicycling organizations that overlook "invisible cyclists" risk losing political support.

Stay in touch

Sign up for our free newsletter

More from Streetsblog USA

Thursday’s Headlines Walk Hard

Where you live probably has a lot to do with how much you walk.

February 19, 2026

When The Suburbs Want To Opt Out of Funding Regional Transit

A messy transit funding fight in Dallas may have reached a pause — but some advocates fear the détente won't hold.

February 19, 2026

Wednesday’s Headlines Have Consequences

The Trump administration's actions on climate change have consequences for future generations. Industries might not like what they get in return.

February 18, 2026

Trump’s Canada Bridge Tantrum Could Be Bad News For An International Bike Trail

A multi-use trail along the Gordie Howe Bridge would be a key component of an epic cross-continental trail route — if Trump doesn't prevent the entire structure from opening.

February 17, 2026

Disturbing Utah ‘Bikelash’ Bill Takes Aim at Salt Lake City Traffic Calming

Utah state legislators aren't traffic engineers — so why are they writing laws that would force the review of specific bike lanes already on the roads in their capitol, and preemptively stop Salt Lake from building more?

February 17, 2026

The Explainer: How Big Tech Push For Cheap Car Insurance Hurts Victims

In New York State, Gov. Kathy Hochul is distorting the notion of "affordability" to do Big Tech's bidding.

February 17, 2026
See all posts