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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Legacy Publication

Legacy ID
1011
Show Effective Date
On
Significant Regulatory Guidance
No

Urban Highway Travel Times

Urban Highway Travel Times

Highway travel times increased between 1993 and 2003 in all but 2 of the 85 urban areas studied by the Texas Transportation Institute. The average Travel Time Index (TTI) for the 85 areas in 2003 was 1.37, an increase from 1.28 in 1993 [2]. This...

Oil Spills into U.S. Waters

Oil Spills into U.S. Waters

Transportation-related sources account for most oil reported spilled into U.S. waters each year1 (box 15-C). The volume of each spill varies significantly from incident to incident: one catastrophic incident can spill millions of gallons...