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
Planning for Congestion Relief
The third and final installment of Planetizen's examination of the role of the planning profession in both perpetuating and solving traffic congestion.
Minneapolis Housing Plan a Success—Not for the Reason You Think
Housing advocates praise the city’s move to eliminate single-family zoning by legalizing triplexes on single-family lots, but that isn’t why housing construction is growing.
‘Mega-Landlords’ Threaten Housing Stability for Renters
As institutional investors buy up a larger share of single-family homes, the families renting them are increasingly vulnerable to rent increases and eviction.
Zoning Stands in the Way of Renewable Energy
Renewable energy is cheap as ever, but zoning isn’t keeping up with the market.
Mixed Use Could Lower Neighborhood Crime Rates
New research shows areas with a heavy concentration of commercial offices experience 40 percent higher crime rates than neighborhoods that mix residential and commercial uses.
Denver E-Bike Rebate Program Proves Wildly Popular
The city is temporarily pausing applications after the program ran out of funds less than a month after the city announced it.
City & Borough of Juneau
City & Borough of Juneau
DMR Architects
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
City of Redwood City
City of Rohnert Park
City of Hot Springs
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.
Hand Drawing Master Plans
This course aims to provide an introduction into Urban Design Sketching focused on how to hand draw master plans using a mix of colored markers.
