U.S. Department of Energy - Energy Efficiency and Renewable Energy
Vehicle Technologies Program
Fact #489: October 1, 2007
Share of Travel in Congested Conditions
According to the Texas Transportation Institute's study on traffic congestion, 63% of travel during peak hours is congested. As expected, traffic congestion is worse in very large urban areas – 75% of travel in very large urban areas experienced congestion in 2005, compared to 28% in small urban areas.
Travel in Congested Conditions 
Supporting Information
Travel in Congested Conditions, 2005 (Percent of Travel)
| Urban Area |
1982 |
1995 |
2005 |
| Small |
10% |
20% |
28% |
| Medium |
18% |
35% |
42% |
| Large |
21% |
44% |
59% |
| Very Large |
37% |
61% |
75% |
|
Source: Texas Transportation Institute, The 2007 Urban Mobility Report, September 2007. |
Return to 2007 Facts of the Week
|