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Traffic Volume Trends - Urban
Estimated Vehicle Miles (Millions) and Percent Change
from Same Period Previous Year (Include Preliminary Data for February 2002)

Year 2001
Urban Interstate%Urban Other Arterial%Other Urban%Total Urban%All Systems%
Jan30,582 3.2Jan70,266 2.5Jan28,705 2.4Jan129,553 2.7Jan208,821 2.5
Feb29,193 0.4Feb66,818 0.3Feb27,557 0.2Feb123,568 0.3Feb199,541 0.0
Mar33,259  -0.4Mar76,730  -0.9Mar31,419  -0.8Mar141,408  -0.8Mar231,162  -0.7
Q193,034 1.0Q1213,814 0.6Q187,681 0.5Q1394,529 0.7Q1639,524 0.5
Apr33,363 2.4Apr75,222 0.9Apr31,437 1.5Apr140,022 1.4Apr231,086 1.3
May35,071 0.8May78,724 0.4May32,775 0.3May146,570 0.5May243,960 0.5
Jun34,637  -0.2Jun77,971  -1.1Jun32,063  -0.8Jun144,671  -0.8Jun242,334  -0.4
Q2103,071 1.0Q2231,917 0.1Q296,275 0.3Q2431,263 0.3Q2717,381 0.5
1st Half196,1051.01st Half445,7310.31st Half183,9560.41st Half825,7920.51st Half1,356,9040.5
Jul34,813 2.2Jul78,076 1.0Jul32,398 0.8Jul145,287 1.3Jul248,478 1.3
Aug35,298 1.0Aug80,447 0.7Aug33,044 1.5Aug148,789 1.0Aug251,263 1.3
Sep31,944  -1.8Sep71,454  -2.5Sep30,012  -1.1Sep133,410  -2.0Sep224,244  -1.5
Q3102,055 0.5Q3229,977 -0.2Q395,454 0.4Q3427,486 0.1Q3723,985 0.4
3 Qs298,1600.8 3 Qs675,7080.1 3 Qs279,4100.4 3 Qs1,253,2780.4 3 Qs2,080,8900.5
Oct34,107 1.0Oct78,023 0.9Oct32,021 0.4Oct144,151 0.8Oct239,670 1.2
Nov33,222 2.3Nov75,351 1.1Nov30,954 2.8Nov139,527 1.8Nov229,222 2.8
Dec32,934  4.0Dec75,191  2.2Dec31,911  3.4Dec140,036  2.9Dec227,708  4.1
Q4100,263 2.4Q4228,565 1.4Q494,886 2.2Q4423,714 1.8Q4696,600 2.7
2nd Half202,3181.42nd Half458,5420.62nd Half190,3401.32nd Half851,2001.02nd Half1,420,5851.5


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