Nashville's (TDOT) federally funded ITS aka inteligent traffic system has made dealing with traffic / construction situations much easier by providing you with relevant overhead sign info (trouble ahead) or online traffic webcams to check before you leave. Despite our ongoing road construction woes, this use of technology has made daily use of the interstate system a much better experience. Kudos. Maybe someday, we will finally look at an effective mass transit system.

Overall in 2003, there were 3.7 billion hours of travel delay and 2.3 billion gallons of wasted fuel for a total cost of more than $63 billion.

"Urban areas are not adding enough capacity, improving operations or managing demand well enough to keep congestion from growing," the report concluded.
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Take fast-growing Austin, Texas, for example. In 1982, the average peak-hour traveler was delayed by 11 hours a year. That delay increased to 51 hours in 2003, the report said.

"Austin didn't add transportation capacity in the '80s or '90s," Lomax said. "The 'If you don't build it, they won't come' philosophy didn't work."

Congestion can also be reduced by managing traffic better. The report said such techniques as coordinating traffic signals, smoothing traffic flow on major roads and creating teams to respond quickly to accidents reduced delay by 336 million hours in 2003.

Study: Traffic Jams Just Keep Spreading