Table 4. MSA v. non-MSA Congestion Ratings, 2006 and 2007 (percent)
| 2006 MSA | 2007 MSA | 2006 Non-MSA | 2007 Non-MSA | |
|---|---|---|---|---|
| Omnibus Household Survey | n=528 | n=454 | n=155 | n=151 |
| Week prior to interview, not at all congested | 27.1 | 29.0 | 51.9 | 66.1 |
KEY: CI = confidence interval; MSA = metropolitan statistical area
NOTE: CIs for MSA fi gures are 2.5% and for non-MSA fi gures are 4.8%.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Omnibus Household Surveys, November 2006 and 2007.
Updated: Sunday, May 21, 2017