Table 5. Opinions on Change in Traffic Congestion by MSA and non-MSA Residents, 2006 v. 2007 (percent holding opinion)
|Overall||MSA residents||Non-MSA residents||95% CI, overall|
|2006 Omnibus Household Survey||n=683||n=524||n=155||n=683|
|Better over last 12 months||10.3||11||7.3||± 2.9%|
|Stayed about the same||62.4||59.9||73.7||± 4.5%|
|Worse over last 12 months||27.3||29.1||19||± 3.9%|
|2007 Omnibus Household Survey||n=607||n=456||n=151||n=607|
|Better over last 12 months||8.8||9.8||5.2||± 2.9%|
|Stayed about the same||65.4||61.8||77.9||± 4.5%|
|Worse over last 12 months||25.8||28.4||16.9||± 3.9%|
KEY: CI = Confidence interval; MSA = metropolitan statistical area
NOTE: CIs for MSA figures are ± 2.5% and for non-MSA figures are ± 4.8%.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Omnibus Household Surveys, November 2006 and 2007.