Adrian let me know about this recent Harris poll:
Just over one-third (37%) say that traffic congestion is a serious problem in their community…
Not surprisingly, opinions varied by region:
Just one-quarter (26%) 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, over one-third (37%) say traffic congestion is a serious problem. Compare this to the West where over half (56%) believe traffic congestion is a serious problem.
More here. Related: More griping about gridlock