What does the 'Sig' stand for in Southern California's 'SigAlert' traffic warning system?
"Loyd C. Sigmon, whose 'SigAlert' freeway traffic jam warning system made him perhaps the most famously unknown figure in Southern California, has died...he SigAlert tops everybody's list as one of the most distinctive aspects of L.A.'s car culture...Today, a SigAlert is issued only when one or more lanes of traffic will be blocked for at least half an hour. The term has become so familiar...that it was added to the Oxford English Dictionary a few years ago.
Thanks to Abhijeet Chavan
FULL STORY: Radio Broadcaster Put the 'Sig' in Traffic Alerts
Maui's Vacation Rental Debate Turns Ugly
Verbal attacks, misinformation campaigns and fistfights plague a high-stakes debate to convert thousands of vacation rentals into long-term housing.
Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.
In Urban Planning, AI Prompting Could be the New Design Thinking
Creativity has long been key to great urban design. What if we see AI as our new creative partner?
Dorm-Style Housing: A Solution for DC’s Vacant Office Buildings
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Opinion: LOS has ‘No Redeeming Quality’
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San Francisco Mayor Backtracks on Homelessness Goal
Mayor Dan Lurie ran on a promise to build 1,500 additional shelter beds in the city, complete with supportive services. Now, his office says they are “shifting strategy” to focus on prevention and mental health treatment.
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.
Gallatin County Department of Planning & Community Development
Heyer Gruel & Associates PA
JM Goldson LLC
Mpact (founded as Rail~Volution)
City of Camden Redevelopment Agency
City of Astoria
Jefferson Parish Government
Camden Redevelopment Agency
City of Claremont