The FHWA says that 40% of all traffic accidents happen at intersections, and many of those are caused by left turns. A new type of intersection called the "diverging diamond" takes left turns out of the picture.
Slate's Tom Vanderbuilt looks at the left-turn problem, and the solution proposed by Gilbert Chlewicki. Here's how it works:
"As the eastbound driver approaches the highway interchange (whose lanes run north-south), traffic lanes "criss cross" at a traffic signal. The driver will now find himself on the "left" side of the road, where he can either make an unimpeded left turn onto the highway ramp, or cross over again to the right once he has gone under the highway overpass."
Read the full story: Don't Turn Left!
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As urban planners, every piece of infrastructure we build is a memorial — whether we know it or not.
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Road safety interventions would help protect seniors and other vulnerable groups from traffic violence.
Rome is Latest European Capital to Drop Speed Limit to 30KPH
Traffic fatalities in Bologna, the first major Italian city to lower their speed limit, dropped by 50 percent in the first year.
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
Eastern Nebraska is running out of electricity
Data centers and electrification are straining eastern Nebraska’s grid, throttling economic development.
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The Missouri city will host the 2028 Olympic soccer group stage and knockout matches.
Dallas releases zoning code overhaul to officials
The drafted overhaul is over 400 pages long.
NYC renovations for dangerous, ‘mercilessly crammed’ street delayed until 2027
Construction was supposed to begin this fall.
San Diego’s Midway Rising project gets greenlight from city council
The project looks to become the largest affordable housing development in California's history.
FREE Course: Walkable City 1: Why Walkability?
After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.
Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold
The course focuses on the opportunities and imperatives that shape reinvention of mall sites.
City of Rosemead
Rutgers University, Edward J. Bloustein School of Planning and Public Policy
One Hundred Miles
University of Michigan School for Environment and Sustainability (SEAS)
Hunter College, City University of New York (CUNY)
The Architects Foundation
City of Cambridge
The Pocatello Development Authority
The Urban Renewal Agency of the City of Pocatello