Table 1-30. Roadway Vehicle-Miles Traveled (VMT) and VMT per Lane-Mile by Functional Class

Table 1-30. Roadway Vehicle-Miles Traveled (VMT) and VMT per Lane-Mile by Functional Class

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  1980 1985 1990 1991 1992 1993 1994 1995 1996 1997 1998
VMT (millions)                     
Urban                     
Interstate 161,242 216,188 278,901 285,325 303,265 317,399 330,577 341,515 351,579 361,401 374,622
Other arterialsa 484,189 578,270 699,233 707,518 745,618 773,978 797,899 815,102 834,623 846,659 862,994
Collector 83,043 89,578 106,297 107,281 116,065 117,887 120,088 126,883 129,310 130,143 131,919
Local 126,791 160,062 191,053 188,373 198,106 200,408 200,683 205,907 208,374 222,142 228,530
Total 855,265 1,044,098 1,275,484 1,288,497 1,363,054 1,409,672 1,449,247 1,489,407 1,523,886 1,560,345 1,598,065
Rural                     
Interstate 135,084 154,357 200,173 205,011 205,557 208,308 215,568 223,382 232,565 240,255 251,520
Other arterialsa 262,774 282,803 330,866 334,755 344,062 349,567 357,329 368,595 378,847 392,058 403,484
Collectorb 189,468 206,669 240,460 245,630 234,910 226,296 230,529 236,148 241,030 254,364 257,858
Local 84,704 86,899 97,379 98,157 99,568 102,535 104,915 105,164 107,752 114,673 120,595
Total 672,030 730,728 868,878 883,553 884,097 886,706 908,341 933,289 960,194 1,001,350 1,033,457
VMT per lane-mile (thousands)                     
Urban                     
Interstate 3,327 3,773 4,483 4,542 4,508 4,588 4,667 4,785 R4,897 4,953 5,081
Other arterialsa 1,451 1,556 1,751 1,758 1,783 1,778 1,803 1,828 R1,857 1,857 1,891
Collector 572 552 634 649 659 656 655 686 R692 694 699
Local 146 168 184 179 181 179 178 181 181 188 192
Total 613 677 764 766 775 782 794 809 R820 822 838
Rural                     
Interstate 1,031 1,170 1,473 1,502 1,540 1,576 1,642 1,693 R1,749 1,804 1,882
Other arterialsa 518 555 640 646 653 665 674 695 710 729 749
Collectorb 132 141 164 167 163 158 161 167 170 179 182
Local 19 20 23 23 23 24 25 25 R25 27 29
Total 103 113 136 138 139 140 144 148 151 157 164

a For urban: the sum of other freeways and expressways, other principal arterials, and minor arterials.For rural: the sum of other principal arterials and minor arterials.
b Collector is the sum of major and minor collectors (rural only).

KEY: R = revised.

NOTE: See table 1-6 for estimated highway lane-miles by functional class.

SOURCES: 1980-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, FHWA-PL-97-009 (Washington, DC: July 1997), table VM-202.
1995-97: Ibid., Highway Statistics (Washington, DC: Annual issues), tables VM-2 and VM-2A. Lane-miles:
1980-95: Ibid., Office of Highway Information Management, unpublished data, 1997, table HM-260.
1996-98: Ibid., Highway Statistics (Washington, DC: Annual issues), table HM-60.