The most congested national park in America is …

… Yosemite National Park in California. That’s according to a new survey by TomTom, which aggregated the average speeds of vehicles traveling through the parks, based on anonymous user-shared data using its navigation devices.

Of the top 10 most visited National Parks, Yosemite and Yellowstone National Park in Wyoming, Montana and Idaho have the longest individual traffic jams, with 3.5 and 2.8 miles respectively, it found.
Read more “The most congested national park in America is …”

30 worst cities for traffic in America

traffic2Which American city has the worst traffic? If you said New York or Los Angeles, guess again. A new survey by TomTom, which is based on the traffic data of millions of GPS users, finds Seattle has the highest percentage of congested roadways.

The results come from TomTom’s speed profiles, an historical speed database from TomTom map business unit Tele Atlas. The profiles aggregate the actual speeds that millions of anonymous, GPS-enabled drivers have traveled over the last two years.

Cities were ranked as most to least congested according to how fast cars could travel on the street network. A city’s traffic was defined as congested if drivers could travel at only 70 percent or less of the posted speed limit, meaning on average an hour long commute included 20 minutes or more of significant delays.
Read more “30 worst cities for traffic in America”