Dashed lines convey information that Dash picks up via its historical traffic pattern information provider Inrix.
ENGADGET: Switched On: Dash delivers open roads, open questions (Part 1)
The top speed that Inrix has clocked this year on Route 79: 115 miles per hour.
Connecticut has the fastest stretch of Interstate highway in the country, according to Inrix.
Inrix multiplied that figure by the length of each roadway to make the final ranking.
Inrix's analysis reveals a striking trend: Traffic congestion has decreased profoundly across the country.
Inrix gathers data from its crowdsourced network of about 100 million vehicles and devices.
FORBES: Bad News: Traffic Jam. Good News: Economy's Revving Up
That suspicion is backed up by traffic data from traffic data outfit Inrix.
FORBES: Bad News: Traffic Jam. Good News: Economy's Revving Up
That's according to traffic data firm Inrix, which measures speeds using GPS data from commercial vehicles.
Overall, Inrix found that driving trips took 18% longer on average than it would have without traffic.
FORBES: Bad News: Traffic Jam. Good News: Economy's Revving Up
"It's still the wild, wild West when it comes to America's fastest roads, " says Inrix spokesman Jim Bak.
The only city in Inrix's study that didn't see a drop in traffic congestion was Baton Rouge, La.
After completion of Minnesota's "Unweave the Weave" highway project there, the interchange has dropped off of Inrix's list altogether.
Current companies include Inrix, a fast-growing navigation and traffic technology company, and Awarepoint, which builds real-time location systems for hospitals.
In all, Inrix figures that the average driver spent about 13 fewer hours sitting in traffic in 2008 than they did in 2007.
Inrix compares this traffic data to unemployment data in these cities and shows that the more jobs there are, the more traffic there is.
FORBES: Bad News: Traffic Jam. Good News: Economy's Revving Up
Here, Inrix has clocked commercial vehicles traveling as fast as 120 miles per hour, and many drivers travel the stretch at 85 miles per hour.
Inrix's statistics also show that New Yorkers really do drive fast.
The success of maps has created another business, called Inrix, that delivers real-time traffic information to the maps from radio transponders in taxis and fleet cars.
Traffic congestion, which increases when shopping and commuting increase, rose in both December and January, according to the National Congestion Index that traffic-information firm Inrix produces for Forbes.
C. had the lowest unemployment rate of the ten cities measured at 5.3% in October, and not surprisingly, it had the some nasty traffic with an Inrix score of 17.7.
FORBES: Bad News: Traffic Jam. Good News: Economy's Revving Up
"That's really dramatic, " says Inrix chief executive Bryan Mistele.
To find America's fastest roads, Inrix first looked for stretches of roadway where motorists routinely drive fast, then it found the speed range at which each roadway's fastest 5% of drivers travel.
Nationwide, the INRIX study found that commuters on the road during peak driving times in the 100 largest cities took seven percent longer to reach their destinations than if traffic was moving freely.
You may think your daily commute might be bad, but drivers in Brussels face the worst traffic jams in the world according to the annual Traffic Scorecard compiled by traffic and navigation service provider INRIX in Kirkland, Wash.
The good news for commuters is that traffic congestion in the U.S. decreased by an average of 30 percent last year, according to the annual National Traffic Scorecard conducted by traffic and navigation service provider INRIX in Kirkland, Wash.
For those who are fortunate enough to be able to adjust their travel times, overall INRIX found Tuesdays from 8:00-9:00 AM to be the busiest morning commute hour overall, and Fridays between 5:00-6:00 PM the most crowded evening commute hour, where the average trip took 11 percent longer.
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