– Just over one-third (37 percent) of U.S. drivers say that traffic congestion is a serious problem in their community, while one-quarter say traffic congestion is a serious problem that is not being addressed. Twelve percent say it is a serious problem that is being addressed. Just less than two in five (39 percent) say traffic is a moderate problem, and 21 percent say it is not a problem at all.This is definitely a case of region playing a role. Just one-quarter (26 percent) of those who live in the Midwest and 32 percent of those in the South say traffic congestion is a serious problem. In the East, more than one-third (37 percent) say traffic congestion is a serious problem. Compare this to the West where more than half (56 percent) believe traffic congestion is a serious problem.When it comes to imposing a congestion tax in U.S. cities, two-thirds (66 percent) of adults oppose such a tax with half (51 percent) saying they strongly oppose it. Just 22 percent said they support it. Even among those who say traffic in their community is a serious problem, most would not support such a tax. Only three in 10 (29 percent) of those who say traffic is a serious problem support a congestion tax while 61 percent oppose it.These are some of the results of a Harris Poll of 2,337 U.S. adults conducted online between Jan. 11-18, 2007, by Harris Interactive.