TABLE 4-18 - Travel Time Index by Urban Area: 2004 to 2009

TABLE 4-18 - Travel Time Index by Urban Area: 2004 to 2009

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Travel Time Index

Urban areas 2004 2005 2006 2007 2008 2009
Very Large            
Atlanta, GA 1.27 1.28 1.28 1.27 1.23 1.22
Boston, MA-NH-RI 1.32 1.32 1.32 1.30 1.21 1.20
Chicago, IL-IN 1.27 1.29 1.28 1.26 1.26 1.25
Dallas-Fort Worth-Arlington, TX 1.26 1.27 1.29 1.28 1.23 1.22
Detroit, MI 1.22 1.21 1.21 1.21 1.18 1.15
Houston, TX 1.31 1.33 1.32 1.31 1.28 1.25
Los Angeles-Long Beach-Santa Ana, CA 1.41 1.42 1.43 1.42 1.35 1.38
Miami, FL 1.31 1.31 1.31 1.30 1.26 1.23
New York-Newark, NY-NJ-CT 1.35 1.37 1.36 1.35 1.27 1.27
Philadelphia, PA-NJ-DE-MD 1.22 1.22 1.22 1.22 1.19 1.19
Phoenix, AZ 1.18 1.21 1.20 1.20 1.17 1.20
San Diego, CA 1.25 1.25 1.25 1.24 1.20 1.18
San Francisco-Oakland, CA 1.37 1.40 1.41 1.39 1.28 1.27
Seattle, WA 1.32 1.33 1.32 1.30 1.26 1.24
Washington, DC-VA-MD 1.35 1.35 1.35 1.36 1.29 1.30
Large            
Austin, TX 1.30 1.32 1.30 1.28 1.27 1.28
Baltimore, MD 1.19 1.19 1.20 1.20 1.16 1.17
Buffalo, NY 1.13 1.13 1.13 1.12 1.09 1.10
Charlotte, NC-SC 1.22 1.20 1.21 1.21 1.19 1.17
Cincinnati, OH-KY-IN 1.15 1.14 1.14 1.14 1.13 1.12
Cleveland, OH 1.13 1.12 1.12 1.11 1.09 1.10
Columbus, OH 1.11 1.11 1.10 1.10 1.08 1.11
Denver-Aurora, CO 1.26 1.28 1.27 1.27 1.21 1.22
Indianapolis, IN 1.15 1.15 1.15 1.14 1.18 1.18
Jacksonville, FL 1.17 1.17 1.17 1.18 1.13 1.12
Kansas City, MO-KS 1.16 1.15 1.16 1.14 1.11 1.10
Las Vegas, NV 1.29 1.29 1.28 1.28 1.27 1.26
Louisville, KY-IN 1.13 1.12 1.12 1.11 1.08 1.10
Memphis, TN-MS-AR 1.19 1.18 1.18 1.16 1.13 1.13
Milwaukee, WI 1.17 1.17 1.15 1.16 1.17 1.16
Minneapolis-St. Paul, MN 1.31 1.33 1.31 1.30 1.24 1.21
Nashville-Davidson, TN 1.21 1.20 1.19 1.18 1.14 1.15
New Orleans, LA 1.18 1.19 1.20 1.20 1.18 1.15
Orlando, FL 1.22 1.22 1.22 1.22 1.19 1.20
Pittsburgh, PA 1.23 1.22 1.21 1.21 1.20 1.17
Portland, OR-WA 1.26 1.27 1.28 1.27 1.23 1.23
Providence, RI-MA 1.19 1.18 1.17 1.18 1.15 1.14
Raleigh-Durham, NC 1.16 1.17 1.16 1.16 1.13 1.13
Riverside-San Bernardino, CA 1.18 1.19 1.20 1.20 1.16 1.16
Sacramento, CA 1.26 1.26 1.26 1.25 1.19 1.18
San Antonio, TX 1.21 1.21 1.19 1.20 1.16 1.16
San Jose, CA 1.29 1.31 1.33 1.32 1.26 1.23
San Juan, PR 1.25 1.24 1.24 1.24 1.22 1.25
St. Louis, MO-IL 1.17 1.17 1.16 1.14 1.12 1.12
Tampa-St. Petersburg, FL 1.18 1.18 1.19 1.19 1.16 1.16
Virginia Beach, VA 1.23 1.24 1.24 1.23 1.19 1.19
Medium            
Akron, OH 1.09 1.08 1.08 1.07 1.05 1.05
Albany-Schenectady, NY 1.10 1.10 1.11 1.12 1.09 1.10
Albuquerque, NM 1.15 1.16 1.17 1.17 1.15 1.13
Allentown-Bethlehem, PA-NJ 1.08 1.08 1.08 1.08 1.08 1.08
Bakersfield, CA 1.07 1.08 1.08 1.08 1.07 1.08
Baton Rouge, LA 1.21 1.21 1.22 1.22 1.23 1.24
Birmingham, AL 1.15 1.15 1.15 1.15 1.14 1.14
Bridgeport-Stamford, CT-NY 1.24 1.26 1.28 1.28 1.23 1.25
Charleston-North Charleston, SC 1.18 1.17 1.18 1.18 1.15 1.15
Colorado Springs, CO 1.14 1.18 1.17 1.16 1.14 1.12
Dayton, OH 1.08 1.07 1.07 1.06 1.06 1.06
El Paso, TX-NM 1.18 1.18 1.18 1.17 1.15 1.15
Fresno, CA 1.08 1.08 1.09 1.09 1.06 1.07
Grand Rapids, MI 1.06 1.05 1.05 1.05 1.05 1.06
Hartford, CT 1.17 1.17 1.19 1.19 1.15 1.13
Honolulu, HI 1.16 1.18 1.19 1.20 1.19 1.18
Indio-Cathedral City-Palm Springs, CA 1.10 1.12 1.13 1.11 1.09 1.13
Lancaster-Palmdale, CA 1.10 1.10 1.10 1.10 1.06 1.11
McAllen, TX 1.08 1.08 1.09 1.09 1.07 1.09
New Haven, CT 1.14 1.15 1.15 1.15 1.13 1.15
Oklahoma City, OK 1.07 1.07 1.08 1.09 1.09 1.09
Omaha, NE-IA 1.10 1.10 1.10 1.10 1.11 1.08
Oxnard-Ventura, CA 1.12 1.12 1.12 1.13 1.11 1.12
Poughkeepsie-Newburgh, NY 1.05 1.05 1.05 1.05 1.04 1.04
Richmond, VA 1.07 1.07 1.07 1.07 1.06 1.06
Rochester, NY 1.07 1.07 1.07 1.07 1.07 1.07
Salt Lake City, UT 1.18 1.16 1.16 1.16 1.11 1.12
Sarasota-Bradenton, FL 1.11 1.11 1.11 1.11 1.09 1.10
Springfield, MA-CT 1.08 1.09 1.10 1.09 1.07 1.09
Toledo, OH-MI 1.08 1.07 1.07 1.07 1.04 1.05
Tucson, AZ 1.14 1.15 1.15 1.14 1.12 1.11
Tulsa, OK 1.06 1.05 1.06 1.06 1.05 1.07
Wichita, KS 1.06 1.06 1.07 1.07 1.06 1.08
Small            
Anchorage, AK 1.06 1.06 1.06 1.06 1.07 1.05
Beaumont, TX 1.06 1.06 1.06 1.06 1.08 1.08
Boise, ID 1.15 1.15 1.16 1.15 1.14 1.12
Boulder, CO 1.14 1.14 1.16 1.14 1.12 1.13
Brownsville, TX 1.07 1.07 1.07 1.07 1.05 1.04
Cape Coral, FL 1.12 1.12 1.14 1.14 1.13 1.12
Columbia, SC 1.07 1.07 1.08 1.10 1.08 1.09
Corpus Christi, TX 1.06 1.07 1.06 1.06 1.06 1.07
Eugene, OR 1.12 1.13 1.12 1.11 1.08 1.07
Greensboro, NC 1.07 1.07 1.07 1.06 1.05 1.05
Jackson, MS 1.08 1.09 1.10 1.10 1.08 1.07
Knoxville, TN 1.09 1.09 1.08 1.09 1.07 1.06
Laredo, TX 1.06 1.06 1.07 1.08 1.06 1.07
Little Rock, AR 1.08 1.08 1.09 1.10 1.08 1.10
Madison, WI 1.05 1.05 1.05 1.05 1.05 1.06
Pensacola, FL-AL 1.10 1.10 1.12 1.12 1.08 1.07
Provo, UT 1.05 1.05 1.05 1.05 1.03 1.06
Salem, OR 1.12 1.12 1.14 1.14 1.10 1.10
Spokane, WA 1.11 1.10 1.10 1.11 1.09 1.10
Stockton, CA 1.04 1.05 1.05 1.05 1.02 1.02
Winston-Salem, NC 1.06 1.07 1.07 1.07 1.06 1.06
Worcester, MA 1.08 1.09 1.09 1.09 1.08 1.07
101-Area averagea 1.24 1.25 1.25 1.24 1.20 1.20
Very large area averagea 1.31 1.32 1.32 1.31 1.26 1.26
Large area averagea 1.21 1.21 1.21 1.20 1.17 1.17
Medium area averagea 1.12 1.12 1.12 1.12 1.10 1.11
Small area averagea 1.08 1.08 1.09 1.09 1.08 1.08

a Averages weighted by vehicle-miles traveled.

NOTES: The Travel Time Index is calculated as the ratio of travel time in the peak period to the travel time at free-flow conditions. A value of 1.35 indicates a 20 minute free-flow trip takes 27 minutes in the peak. Free-flow speeds (60 mph on freeways and 35 mph on principal arterials) are used as comparison threshold.

Very large urban areas have a population of over 3 million. Large urban areas have a population of over 1 million and less than 3 million. Medium urban areas have a population of over 500,000 and less than 1 million. Small urban areas have a population of less than 500,000.

The 2010 Urban Mobility Report methodology and data sources have been significantly revised and the total number of cities reported rose from 90 to 101; these figures are not comparable to those in past editions of this publication. This is due to methodological changes such as covering a 24 hour period instead of only peak periods.

SOURCE: Texas A&M University, Texas Transportation Institute, 2010 Urban Mobility Report (College Station, TX: 2011), available at http://mobility.tamu.edu as of January 2011 as cited in U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, table 1-69, available at http://www.bts.gov/publications/national_transportation_statistics/ as of April 2011.