World

A new study indicates that the safest urban streets have lanes that measure 10-10.5 feet wide. Narrower and wider lanes have higher crash frequencies, and wider lanes have higher crash severity.
20 hours ago   Streetsblog USA
Penn IUR Co-Directors Genie Birch and Susan Wachter write about the promise of geospatial technologies in promoting sustainable urbanization.
Yesterday   Penn Institute for Urban Research
Gensler, along with partners in China, is exploring ways to implement 3D printing technology. It's time for planners to start letting their imaginations run wild with possibilities.
May 24, 2015   Rice Kinder Institute for Urban Research
Someone's done the hard work of finding, sorting, and stitching together millions of photos from the Internet to create animated portraits of the evolution of places.
May 22, 2015   The Verge
After a splashy project recently hit its crowdfunding goals, one write dares to suggest that such fund raising methods might not be the best idea.
May 21, 2015   The Guardian Cities
A new Deloitte report evaluates ways that new technologies and mobility services help reduce the need to own and use private automobiles. Helsinki's audacious goal: By 2025, no city resident will need to own a private car.
May 21, 2015   Smart Mobility
"A German university student has developed a fun new tool for visualizing public transit in a more system-oriented way," according to a post by Sam Sturgis.
May 20, 2015   CityLab
An IMF working paper determined that global energy subsidies totaled $5.3 trillion this year, the worst offenders are China and the U.S. Placing a price on these subsidies, which include air pollution and carbon emissions, may be key to mitigation.
May 20, 2015   Reuters
California's economy is not only the "least carbon-intensive" in the United States, it's the second lowest in the world when measured per economic output, according to a new study that evaluates economics and environment.
May 19, 2015   San Francisco Chronicle
A new study finds that biking to work does wonders for reducing stress levels throughout the day. Too bad most it's so hard to fund biking infrastructure.
May 19, 2015   Treehugger
The "health, safety, and general welfare" of our communities are poorly served by the outcomes of the status quo.
May 19, 2015   PlaceShakers