TTI's Urban Mobility Report Flawed, Says Critic

The Texas Transportation Institute just released its 2010 Urban Mobility Report, which is a standard reference in the road-building industry -- and is seriously flawed, says Joe Cortright.

Cortright, working for CEOs for Cities, released an extensive critique of the Urban Mobility Report last year. Looking at the latest report, CEOs for Cities says that many of the same faulty models are still at work. Particularly, they cite TTI's "Travel Time Index" as Travel Time Index as being "built on the unrealistic baseline assumption that travel times should (and could) be no longer during peak periods as during non-peak periods and obscures the effect of land use patterns in creating longer travel distances."

" ignoring – and thereby concealing – the effects of longer travel distances in some cities, the UMR continues to get the ranking of cities with the worst travel problems wrong."

Thanks to Todd Litman

Full Story: 2010 Urban Mobility Report Remains a Flawed and Misleading Guide to Urban Transportation


Prepare for the AICP* Exam

Join the thousands of students who have utilized the Planetizen AICP* Exam Preparation Class to prepare for the American Planning Association's AICP* exam.
Starting at $245
Book cover of the Guide to Graduate Planning Programs 4th Edition

Thinking about Grad School?

The Planetizen Guide to Graduate Urban Planning Programs is the only comprehensive ranking and listing of graduate urban planning programs available.
Starting at $24.95

City Coasters

Hand-drawn engraved maps of your favorite neighborhoods are divided up across 4 coasters making each one unique.

Essential Readings in Urban Planning

Planning on taking the AICP* Exam? Register for Planetizen's AICP * Exam Preparation Course to save $25.