Philadelphia has more fatal traffic accidents than other big US cities, and they’re concentrated in poor neighborhoods.
Articles on Traffic
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In Portswood, bus users enjoyed reliable journeys and a calmer high street. But some residents faced longer and less convenient car journeys.
Australia’s first AI traffic-light trial could cut delays. It also raises hard questions about fairness, safety and who gets priority on public roads.
Mathematics is helping us move away from reacting to congestion, towards preventing it.
Motor traffic makes residents feel less safe from vandalism, burglary and violence.
The constant noise of traffic is so ubiquitous, it is barely noticeable to our ears – until we step into a roadless forest and experience true quiet.
Urban design depends heavily on human judgment and field-based understanding.
As cities grow, it would be better to have more efficient, higher-capacity transport than more vehicles on the road.
Paris is three decibels quieter than it was 10 years ago, thanks to an effective noise pollution campaign. But traffic noise still forces birds to sing at a higher pitch.
Every city is different but they can learn from each other.
Clogged up Britain
Should cyclists be allowed to treat stop signs as yield signs? This rule from Idaho is divisive, but the scientific data is surprising.
Through a long history of prioritizing cars in our cities, we have normalized not seeing or hearing children on our streets.
An information systems expert explains why fairness and transparency are key to introducing new AI-driven enforcement technologies to the public.
Motorcycle ride-hailing taxis have been hailed as a major boon for African cities. But they also present new risks of their own making.
Even though research supports the change, most cities have been slow to ban left turns at even the most congested intersections.
Australia is ready for a rational and transparent discussion about road-user charging on all vehicles, not just electric ones.
Low wages and low funding in the DR Congo have led to police officers trying to extract funds from drivers.
Philadelphia implemented new policies this year to better protect pedestrians and cyclists, but the city has a long way to go to reach its Vision Zero commitment of zero traffic deaths by 2030.
Less traffic means better urban air quality, but it can also threaten city centre businesses.
Top contributors
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John Rennie Short is a Friend of The Conversation.Professor Emeritus of Public Policy, University of Maryland, Baltimore County
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Honorary Professor of Transport Studies
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Associate Research Scientist, Texas A&M University
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Associate Professor in Infrastructure Management, University of Sydney
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Professor of Transport Technology and Sustainability, Swinburne University of Technology
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Transport and Cities Program Director, Grattan Institute
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Professor of Environmental Design, University of Colorado Boulder
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Researcher in Road Ecology, Nottingham Trent University
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Professor of Civil Engineering, Penn State
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Professor, Crawford School of Public Policy, Australian National University
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Professor and Director, Institute of Transport and Logistics Studies, University of Sydney
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Professor of Civil and Environmental Engineering and Director, Supply Chain Transportation and Logistics Center, University of Washington
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Transport Fellow, Grattan Institute
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Professor of Transport, University of Sydney
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Associate Research Professor, Urban Health Collaborative, Drexel University