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June 2008 Traffic Volume Trends

Individual Monthly Motor Vehicle Travel in the U.S. for June 2008

Table - 1. Estimated Individual Monthly Motor Vehicle Travel in the United States**
System Month
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
2007 Individual Monthly Vehicle-Miles of Travel in Billions*
Rural Interstate 18.9 17.6 21.4 21.6 22.9 22.8 24.1 24.3 21.0 21.9 21.0 20.1
Rural Other Arterial 28.9 27.4 33.1 32.3 34.9 35.1 37.0 36.8 32.9 34.3 31.6 30.1
Other Rural 28.3 26.3 32.3 31.4 34.0 34.2 34.6 34.6 31.4 33.0 29.4 28.1
Urban Interstate 37.3 34.8 40.4 39.7 42.2 42.1 40.5 41.7 38.8 40.7 39.4 37.8
Urban Other Arterial 83.4 78.2 91.7 87.9 92.0 90.9 90.2 93.1 83.8 91.5 86.1 85.5
Other Urban 34.3 32.1 37.7 36.9 38.4 37.4 37.5 38.1 35.2 37.2 35.7 36.6
All Systems 231.1 216.4 256.7 249.8 264.3 262.5 263.8 268.7 243.0 258.7 243.2 238.3
2008 Individual Monthly Vehicle-Miles of Travel in Billions*
Rural Interstate 18.5 17.4 20.9 20.4 22.0 21.3
Rural Other Arterial 28.4 27.3 31.5 31.4 33.5 33.0
Other Rural 27.7 26.1 30.3 30.8 32.4 32.3
Urban Interstate 36.8 34.6 39.2 39.3 40.7 40.6
Urban Other Arterial 82.1 78.1 87.7 87.5 88.6 86.8
Other Urban 34.0 32.0 36.0 36.5 36.9 36.1
All Systems 227.5 215.4 245.6 245.9 254.1 250.2
Percent Change In Individual Monthly Travel 2007 vs. 2008
Rural Interstate -2.1 -1.1 -2.7 -5.4 -3.9 -6.7
Rural Other Arterial -1.8 -0.4 -4.8 -2.9 -4.1 -5.9
Other Rural -2.0 -0.9 -6.2 -1.8 -4.7 -5.5
Urban Interstate -1.3 -0.6 -3.1 -1.0 -3.5 -3.4
Urban Other Arterial -1.6 -0.2 -4.3 -0.5 -3.6 -4.5
Other Urban -1.1 -0.2 -4.4 -1.0 -3.9 -3.3
All Systems -1.6 -0.5 -4.3 -1.6 -3.9 -4.7
Table - 2. Estimated Cumulative Monthly Motor Vehicle Travel in the United States**
System Month
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
2007 Individual Monthly Vehicle-Miles of Travel in Billions*
Rural Interstate 18.9 36.6 58.0 79.6 102.5 125.3 149.5 173.7 194.7 216.6 237.6 257.7
Rural Other Arterial 28.9 56.3 89.5 121.8 156.7 191.8 228.7 265.6 298.5 332.8 364.4 394.5
Other Rural 28.3 54.6 86.8 118.2 152.2 186.4 221.0 255.7 287.0 320.1 349.5 377.6
Urban Interstate 37.3 72.0 112.4 152.1 194.3 236.3 276.8 318.5 357.3 398.0 437.4 475.2
Urban Other Arterial 83.4 161.6 253.3 341.2 433.2 524.1 614.3 707.4 791.1 882.6 968.7 1054.2
Other Urban 34.3 66.4 104.1 141.1 179.4 216.8 254.3 292.4 327.6 364.8 400.5 437.1
All Systems 231.1 447.5 704.2 954.0 1218.3 1480.8 1744.6 2013.3 2256.3 2515.0 2758.1 2996.4
2008 Individual Monthly Vehicle-Miles of Travel in Billions*
Rural Interstate 18.5 36.0 56.8 77.2 99.3 120.6
Rural Other Arterial 28.4 55.7 87.3 118.6 152.1 185.1
Other Rural 27.7 53.8 84.0 114.9 147.3 179.6
Urban Interstate 36.8 71.4 110.5 149.8 190.5 231.1
Urban Other Arterial 82.1 160.1 247.8 335.3 423.9 510.7
Other Urban 34.0 66.0 102.0 138.6 175.4 211.5
All Systems 227.5 442.9 688.5 934.4 1188.5 1438.7
Percent Change In Individual Monthly Travel 2007 vs. 2008
Rural Interstate -2.1 -1.6 -2.0 -2.9 -3.1 -3.8            
Rural Other Arterial -1.8 -1.1 -2.5 -2.6 -2.9 -3.5
Other Rural -2.0 -1.5 -3.2 -2.8 -3.3 -3.7
Urban Interstate -1.3 -0.9 -1.7 -1.5 -2.0 -2.2
Urban Other Arterial -1.6 -0.9 -2.2 -1.7 -2.1 -2.6
Other Urban -1.1 -0.6 -2.0 -1.8 -2.2 -2.4
All Systems -1.6 -1.0 -2.2 -2.1 -2.4 -2.8

*Percent change is based on vehicle travel in millions of miles.

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