While urbanists have long used the built environment as their playground, the French sport of parkour is connecting residents of America's cities to their surroundings in a new, if not extreme manner.
"Gabe Streisfeld, 18, grabs a metal pole on a loading-dock ramp in an alley next to the Comcast Center. It feels sturdy, anchored in a cement ledge, so the Penn Valley native takes a few running steps, leaps up about five feet, and swings his whole body around.
His longtime friend Ty Soehngen, 18, of Narberth, suggests they swing halfway around and jump onto a ramp a foot higher. He flies off the pole and grabs a rail above the ramp to hoist himself over.
For Streisfeld and Soehngen, Center City is a grown-up's playground. Both are devotees of parkour, an extreme sport created in France almost 20 years ago that migrated to the United States about six years ago, and more recently to the Philadelphia area."
Thanks to Sandy Sorlien
FULL STORY: Parkour gaining popularity in Phila.

Manufactured Crisis: Losing the Nation’s Largest Source of Unsubsidized Affordable Housing
Manufactured housing communities have long been an affordable housing option for millions of people living in the U.S., but that affordability is disappearing rapidly. How did we get here?

Americans May Be Stuck — But Why?
Americans are moving a lot less than they once did, and that is a problem. While Yoni Applebaum, in his highly-publicized article Stuck, gets the reasons badly wrong, it's still important to ask: why are we moving so much less than before?

Using Old Oil and Gas Wells for Green Energy Storage
Penn State researchers have found that repurposing abandoned oil and gas wells for geothermal-assisted compressed-air energy storage can boost efficiency, reduce environmental risks, and support clean energy and job transitions.

Poorest NYC Neighborhoods Pay Price for Delivery Boom
The rise of ‘last-mile’ e-commerce warehouses — and their attendant truck traffic and air pollution — is disproportionately impacting the most historically disadvantaged parts of the city.

Greening Oakland’s School Grounds
With help from community partners like the Trust for Public Land, Oakland Unified School District is turning barren, asphalt-covered schoolyards into vibrant, green spaces that support outdoor learning, play, and student well-being.

California Governor Suspends CEQA Reviews for Utilities in Fire Areas
Utility restoration efforts in areas affected by the January wildfires in Los Angeles will be exempt from environmental regulations to speed up the rebuilding of essential infrastructure.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Heyer Gruel & Associates PA
City of Moreno Valley
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Salt Lake City
NYU Wagner Graduate School of Public Service
City of Cambridge, Maryland