TomTom and TeleAtlas figure out worst traffic in the U.S.
Dec 6, 2009 gps navigation, tomtom
TomTom and TeleAtlas recently revealed a study they put together on traffic congestion in U.S. cities.
They calculated the percentage of congested roadways but using their crowd sourced speed data from millions of drivers with GPS devices over the last two years, historical speed databases. The study defined congestion as driving at a speed less than 70% of the posted limit.
Bay Area of CA is probably the worst place to live as far as traffic is concerned since they have the most number of cities in this list.
Here is the top 30 cities from continental US with the worse traffic:

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December 7th, 2009 at 5:20 am
You know, I grew up in Boston, and there’s no denying that traffic there is awful. I’ve either lived or spent time in a few other major cities since then (Philly, NYC, LA, DC), and I still haven’t found a place with traffic that gives me the same level of exasperation as sitting still on I-93 South out of Boston at the end of a work day. Except maybe the 405 in LA. I live around DC and that’s one I disagree with in particular (and all the VA and MD cities listed are also suburbs of DC). Everyone around me complains about how bad the traffic is here, and I just don’t see it. Yes, it’s busy, but you’re always *moving*. It’s hard to explain, but the worst day of traffic here in DC doesn’t bring me to the same level of despair as the best rush hour in Boston ever did.
December 7th, 2009 at 6:35 pm
I was also surprised to see some cities up there. I believe the numbers are over-simplified to make it easy for most people to understand.