The forced slow-and-go caused by speed humps may have the unintended consequences of increasing the release of the tiny particles that have proven harmful to health within a concentrated area.

A new report from researchers at the University of York in the UK has found that the placement of speed humps on the road may have some unintended consequences. Patrick Sawer of The Telegraph (UK) reports that researchers have found that as drivers break and accelerate over speed humps, autos are releasing unhealthy particulates as exhaust at higher levels than is found around other traffic calming measures. Researchers have joined calls from hump opponents warning that the placement of speed humps, particularly outside of schools, may be causing more harm than good.
Roger Lawson, of the Alliance of British Drivers, backed calls to remove road humps from outside schools , as well as elsewhere, saying they damaged health while having a negligible impact on safety.
He said: “Road humps provide no real safety benefit and they have a negative impact on pollution. There are lots of alternative traffic calming measures which can be used more effectively near schools, such as road narrowing and speed display devices. Most road accidents with children do not take place outside their schools, but councils like to indulge in gestures such as fitting humps.”
FULL STORY: Calls for 'polluting' road humps to be removed outside schools

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage
Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss
The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

Waymo Gets Permission to Map SF’s Market Street
If allowed to operate on the traffic-restricted street, Waymo’s autonomous taxis would have a leg up over ride-hailing competitors — and counter the city’s efforts to grow bike and pedestrian on the thoroughfare.

Parklet Symposium Highlights the Success of Shared Spaces
Parklets got a boost during the Covid-19 pandemic, when the concept was translated to outdoor dining programs that offered restaurants a lifeline during the shutdown.

Federal Homelessness Agency Places Entire Staff on Leave
The U.S. Interagency Council on Homelessness is the only federal agency dedicated to preventing and ending homelessness.
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