Skip to Content
Streetsblog USA home
Streetsblog USA home
Log In

Following an eye-opening three-day experience with a car-free center city -- a byproduct of Pope Francis's visit -- many Philadelphia residents are beating the drum for more large open streets events to provide some relief from traffic.

Joseph Martin, an engineering professor at Drexel University, told the Philadelphia Inquirer that open streets events would cause traffic outside the zone. Photo: Haverford School District via This Old City
Drexel University's Joseph Martin, open streets curmudgeon. Photo: Haverford School District via This Old City
false

A recent Philadelphia Inquirer story explored the idea, and playing the role of curmudgeon was Joseph Martin, an engineering professor at Drexel University who gave some rather feeble reasons why another big open streets event in Philadelphia would be a total disaster.

Patrick Miner responds to Martin at This Old City:

When Martin does get around to remotely substantive assertions, they’re focused on scaring people into opposing Open Streets - dramatic traffic jams! stranded elderly relatives! - rather than making a serious case that the logistics are unworkable.

First, while seniors are the most vulnerable to being while killed by cars while crossing the street legally (see pg. 25) - and may have the most to gain from car-free streets - it is true that restricting vehicle access could cause a temporary inconvenience to the small minority of people who have no other choice but to use a car in city neighborhoods on Sunday mornings.

The idea that this is an insurmountable obstacle to hosting Open Streets, however, is ridiculous. It barely takes an engineer to devise a scheme in which people can walk freely while simultaneously making arrangements for the few people who truly need vehicle access to their homes.

Second, Dr. Martin’s claim that vehicular traffic would be "doubled or tripled" on adjacent streets is totally without justification.  Not even a transportation engineer could begin to prove or disprove that statement.

Without knowing the specific location, the time of week, the extent of traffic restriction, or other relevant factors, there’s just no way to make an accurate quantitative prediction, let alone generalize about it.

Elsewhere on the Network today: Free Public Transit has stats on how Paris's big car-free day improved air quality. Baltimore Spokes shares the news that Governor Larry Hogan has set aside $14 million for biking and walking projects around Maryland. And FABB Blog excerpts a story about the growing number of people in the DC area looking for secure bike parking when they move to a new apartment.

Stay in touch

Sign up for our free newsletter

More from Streetsblog USA

Friday’s Headlines Wrote Themselves

Blame it on AI. That will fix everything.

March 6, 2026

Friday Video: How Boomers Broke the Auto Market

Take a deep dive into America's SUV apocalypse — and learn how the next generation can undo the damage.

March 6, 2026

Talking Headways Podcast: The Annual Prediction Show with Yonah Freemark

Yonah Freemark joins Talking Headways for their annual discussion of future of transit in the United States (and Mexico).

March 5, 2026

‘Stupendous Potential’: Pay-Per-Mile Auto Insurance Would Cut Costs And Traffic Violence

Lowering car insurance costs doesn't have to eviscerate crash victims's rights.

March 5, 2026

Urban Truth Collective: Straight Talk About The Joy Of Cities In An Age Of Disinformation

The Three Tenors of Urbanism explain their latest effort: The Urban Truth Collective.

Study: AVs Will Super-Charge VMT

Yes, robocars address many of our traffic violence troubles, but they may fail to uproot the deeper rot of car dependency that has hollowed out our society

March 5, 2026
See all posts