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
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San Francisco Municipal Transportation Agency
City of Orange
City of Charlotte - Charlotte Area Transit
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
HUD's Office of Policy Development and Research
Montrose County
Wichita-Sedgwick County Metropolitan Area Planning Department
City of Lomita
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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.
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