Car-free streets: the revival of urban slow living

On a summer weekend in New York, several main arteries of Manhattan shed their usual weekday bustle—no honking traffic jams or slow-moving cars, replaced instead by families pushing strollers, friends jogging together, and cyclists weaving through. This is the everyday scene of New York’s “Summer Streets” program, an annual project that transforms busy city roads into a pedestrian paradise, offering rare open space in one of America’s most densely populated cities.

This trend is not an isolated case. From San Francisco’s “Slow Streets” program (launched during the pandemic and still offering community connections beyond driving), to Paris with over 100 permanent car-free streets (residents voted last year to add 500 more), to Singapore’s “Car-Free Sunday” and Barcelona’s “Superblocks”—more and more cities are reclaiming roads, turning them from car-only zones back into public living spaces.

The environmental and health benefits of these initiatives are being quantified. A study published last month monitored Ottawa’s Queen Elizabeth Driveway, which closes on summer weekends, and found that when vehicular traffic is removed, pedestrians and cyclists are exposed to about 60% lower levels of air pollution and noise on average. The lead author, Professor Liam O’Brien of Carleton University, noted that the presence of cars can determine whether you can hear a companion’s words while running or walking.

In terms of air quality, reducing road traffic significantly cuts emissions of fine particulate matter (PM2.5)—harmful substances often from vehicle exhaust. Professor Greg Marsden of the University of Leeds emphasized that even with the widespread adoption of electric vehicles, tire wear and road dust particles cannot be eliminated. Only when cars truly leave the road do these sources of pollution disappear.

More importantly, car-free spaces provide safe exercise areas for cities lacking open zones. Many people seek stress relief and physical activity on pedestrian streets, and introducing cars into these spaces disrupts the experience of rest and social interaction. New York’s “Open Streets” initiative, launched during the pandemic, allowed nearby restaurants to achieve higher revenue than those adjacent to car-traffic lanes. The positive response from businesses further drove the continuation and expansion of the policy.

This change is not limited to large cities. Small towns can also experiment: closing inner-city roads on weekends or blocking a few blocks around schools. Professor Marsden believes that cars are so deeply ingrained in modern life that people have accepted a “slow drip” of increasing vehicle presence, and now live in neighborhoods overwhelmed by cars with no apparent way out. “Car-Free Day” offers an opportunity to restart the conversation: when streets are freed up, children can ride bikes independently, people can stroll on the roads, and corners can become micro-parks and resting areas—do we really want a car-dominated future?

New York’s progress may be the best footnote.New York's progress may be the best footnote. In March this year, 29 current and former elected officials jointly requested the transportation department to expand car-free streets into a coherent network, to "create a continuous car-free backbone for cycling and walking." Mayor Zoran Mamdani promised during his campaign to fund and extend the annual Open Streets program, and plans to allocate $6.4 million annually as basic funding before fiscal year 2030. Professor O'Brien said this proves that the future does not have to rely on cars—we can provide more sustainable and also more desirable alternatives.

Essentially, the car-free streets movement is not just about emission reduction or health—it is reshaping the rhythm of urban life and social connections. When cars no longer dominate, cities truly belong to everyone who walks, cycles, or simply wants to sit down on the street for a cup of coffee.