As part of a larger series, NY Times guest blogger Eric A Morris talks about traffic in LA, and how the city's structure affects ease of transportation.
"According to the Texas Transportation Institute's 2005 Mobility Report, Angelenos who traveled in the peak periods suffered 72 annual hours of delay. This was number one in the nation, by a large margin.
The T.T.I.'s methodology has some issues, but it is probably safe to say they got this right. I have studied Los Angeles traffic conditions for an 18-year period. My conclusion, to put it in formal transportation terminology, is that Los Angeles traffic really, really sucks.
Not that this eases our pain much, but San Francisco and New York, cities that supposedly show Los Angeles how transportation and urbanization should be done, are tied for second and 15th respectively in most hours of congestion delay."
Thanks to Franny Ritchie
FULL STORY: Traffic in LA: Fact and Fiction

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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.
Appalachian Highlands Housing Partners
Gallatin County Department of Planning & Community Development
Heyer Gruel & Associates PA
Mpact (founded as Rail~Volution)
City of Camden Redevelopment Agency
City of Astoria
City of Portland
City of Laramie