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FHWA Home / Policy & Governmental Affairs / Highway Policy Information / Highway Statistics Series / 2023 / Table HM-59 - Highway Statistics 2023

Highway Statistics Series

Highway Statistics 2023


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Functional System Length - 2023 1/
Miles by Lane Width, Access Control and Average Daily Traffic Volume – Rural

National Summary

JANUARY 2025

Table HM-59 (Sheet 1 of 4)
LANE WIDTH AND ACCESS CONTROL AVERAGE DAILY TRAFFIC VOLUME
INTERSTATE OTHER FREEWAYS AND EXPRESSWAYS OTHER PRINCIPAL ARTERIAL
LESS THAN 10,000 10,000 - 19,999 20,000 - 34,999 35,000 AND OVER TOTAL LESS THAN 1,000 1,000 - 1,999 2,000 - 2,999 3,000 - 9,999 10,000 - 14,999 15,000 AND OVER TOTAL LESS THAN 1,000 1,000 - 1,999 2,000 - 2,999 3,000 - 9,999 10,000 - 14,999 15,000 AND OVER TOTAL
Undivided: 2/ Less than 9 feet - - - - - - - - - - - - 8 0 - 67 - 0 76
9 feet - - - - - - - - - - - - 11 67 37 91 9 11 226
10 feet 16 - 0 - 16 - 0 - 0 - - 0 462 280 371 671 193 60 2,037
11 feet 643 12 - 6 661 - 40 25 9 0 11 85 801 951 1,368 3,964 384 370 7,838
12 feet 341 11 11 1 364 3 19 26 380 40 53 521 4,526 8,859 9,200 24,498 2,336 1,173 50,591
Greater than 12 feet 0 - - - 0 3 - 0 12 1 1 16 116 175 273 826 105 65 1,561
Total Undivided 1,000 23 11 7 1,041 6 59 51 400 41 65 622 5,924 10,333 11,249 30,118 3,026 1,680 62,329
Divided: 2/
No access control:		 Less than 9 feet - - - - - - - - 1 - - 1 - - - 0 5 - 5
9 feet - - - - - - - - - - - - - 0 - 4 0 - 4
10 feet 1 - 23 - 24 - - - - - 2 2 0 6 1 36 13 81 137
11 feet - - - - - - - - 2 4 37 42 19 38 59 563 396 215 1,289
12 feet 24 6 334 527 891 - 4 20 281 108 106 519 12 104 409 5,725 2,422 2,898 11,570
Greater than 12 feet - - - - - - - - 2 5 2 8 1 6 24 336 240 115 721
Subtotal 25 6 357 527 915 - 4 20 285 116 147 573 31 153 494 6,663 3,076 3,309 13,726
Divided: 2/
Partial access control:		 Less than 9 feet - - - 4 4 - - - - - - - 2 - - 57 36 4 98
9 feet - - - - - - - - - - - - - - - 0 - - 0
10 feet - - - 0 0 - - - 10 4 4 19 - - - 58 1 7 66
11 feet 3 - - - 3 - - - 5 8 29 41 - 4 - 182 104 106 396
12 feet 2 9 61 25 97 - 26 89 582 409 585 1,692 - 28 339 2,356 1,037 1,374 5,134
Greater than 12 feet - - 11 1 12 - 1 4 26 11 9 50 1 23 34 200 91 52 400
Subtotal 5 9 73 30 116 - 27 93 623 432 627 1,802 3 55 372 2,853 1,270 1,543 6,096
Divided: 2/
Full access control:		 Less than 9 feet 43 6 2 1 52 - - - - 2 - 2 - - - - - - -
9 feet 5 41 0 1 46 - - - - - - - - - - - - - -
10 feet 15 57 16 31 119 - - - - - 0 0 - - - - - 3 3
11 feet 88 253 253 632 1,226 - - - 11 45 123 179 - - - - - 1 1
12 feet 3,714 6,564 7,373 5,410 23,062 - 0 2 568 691 1,585 2,846 - 17 31 609 102 286 1,045
Greater than 12 feet 52 299 200 98 649 0 - - - 3 64 67 0 - - - - 26 26
Subtotal 3,916 7,221 7,846 6,172 25,154 0 0 2 579 742 1,772 3,095 0 17 31 609 102 316 1,075
Total Divided 3,946 7,236 8,275 6,729 26,185 0 31 115 1,487 1,290 2,546 5,470 34 225 897 10,125 4,447 5,168 20,897
Total 4,945 7,259 8,286 6,736 27,226 6 90 166 1,888 1,331 2,611 6,092 5,958 10,558 12,146 40,243 7,473 6,847 83,225

JANUARY 2025

Table HM-59 (Sheet 2 of 4)
LANE WIDTH AND ACCESS CONTROL AVERAGE DAILY TRAFFIC VOLUME
MINOR ARTERIAL MAJOR COLLECTOR
LESS THAN 1,000 1,000 - 1,999 2,000 - 2,999 3,000 - 9,999 10,000 - 14,999 15,000 AND OVER TOTAL LESS THAN 100 100 - 499 500 - 999 1,000 - 4,999 5,000 - 9,999 10,000 AND OVER TOTAL
Undivided: 2/ Less than 9 feet 59 29 66 5 51 0 211 1,313 4,078 883 2,278 3 9 8,565
9 feet 237 282 168 415 20 1 1,124 2,440 10,248 4,617 5,775 170 3 23,253
10 feet 3,055 2,865 2,773 4,759 158 33 13,643 9,346 34,109 18,966 27,878 1,198 80 91,576
11 feet 6,403 5,383 5,693 7,808 499 113 25,900 6,361 33,143 21,584 39,961 1,709 324 103,082
12 feet 18,216 16,817 13,949 24,846 1,550 419 75,796 19,397 43,672 22,732 47,667 4,815 488 138,771
Greater than 12 feet 907 645 1,087 1,091 23 18 3,770 857 3,451 1,514 3,092 349 139 9,403
Total Undivided 28,877 26,021 23,735 38,925 2,302 584 120,444 39,713 128,701 70,295 126,651 8,244 1,044 374,649
Divided: 2/
No access control:		 Less than 9 feet - 1 - - - - 1 - 10 5 15 - 29 59
9 feet - 0 - 2 0 - 2 - 0 3 0 0 - 3
10 feet 0 4 6 31 - 0 42 - 11 31 92 37 3 173
11 feet - 42 38 263 8 5 356 - 41 287 117 8 18 469
12 feet 3 366 152 934 409 316 2,180 - 65 26 675 314 234 1,314
Greater than 12 feet 5 93 6 72 13 23 211 7 26 15 37 1 3 89
Subtotal 8 505 202 1,302 431 344 2,792 7 153 366 936 359 286 2,108
Divided: 2/
Partial access control:		 Less than 9 feet - - - - - - - - - - - - - -
9 feet - - - - - - - - - - - - - -
10 feet - - - - - - - - - - - - - -
11 feet 0 - - 0 36 3 40 - - - - - - -
12 feet 20 87 3 178 108 56 453 - - - 59 - 28 87
Greater than 12 feet - - - 42 3 - 45 - - - - - - -
Subtotal 20 87 3 220 147 59 537 - - - 59 - 28 87
Divided: 2/
Full access control:		 Less than 9 feet - - - - - - - - - - - - - -
9 feet - - - - - - - - - - - - - -
10 feet - - - - - - - - - - - - - -
11 feet - - - - 25 - 25 - - - - 27 - 27
12 feet - - - 8 6 38 52 - - - 6 - 11 17
Greater than 12 feet - - - - - 1 1 - - - 18 0 0 18
Subtotal - - - 8 31 39 78 - - - 24 28 11 63
Total Divided 28 592 205 1,531 609 442 3,407 7 153 366 1,019 387 325 2,258
Total 28,905 26,613 23,940 40,456 2,911 1,026 123,851 39,721 128,855 70,661 127,670 8,631 1,369 376,907

Functional System Length - 2023 1/
Miles by Lane Width, Access Control and Average Daily Traffic Volume – Urban

National Summary

JANUARY 2025

Table HM-59 (Sheet 3 of 4)
LANE WIDTH AND ACCESS CONTROL AVERAGE DAILY TRAFFIC VOLUME
INTERSTATE OTHER FREEWAYS AND EXPRESSWAYS OTHER PRINCIPAL ARTERIAL
LESS THAN 30,000 30,000 - 69,999 70,000 - 124,999 125,000 - 174,999 175,000 AND OVER TOTAL LESS THAN 15,000 15,000 - 34,999 35,000 - 59,999 60,000 - 99,999 100,000 AND OVER TOTAL LESS THAN 7,500 7,500 - 14,999 15,000 - 34,999 35,000 - 59,999 60,000 AND OVER TOTAL
Undivided: 2/ Less than 9 feet - - - - - - 0 - - - - 0 33 43 51 0 - 127
9 feet - - - - - - 0 0 - - - 1 31 79 60 0 - 170
10 feet 0 - - - - 0 1 4 2 - - 6 369 976 828 69 2 2,244
11 feet 10 0 0 0 - 11 17 26 1 0 - 45 1,166 2,046 2,206 131 3 5,552
12 feet 20 22 24 8 5 78 145 125 34 11 1 315 4,520 8,181 8,265 488 6 21,460
Greater than 12 feet 7 0 1 1 - 9 24 11 8 0 - 43 735 1,127 714 36 - 2,612
Total Undivided 37 23 25 9 5 98 188 166 45 12 1 410 6,854 12,452 12,124 725 11 32,166
Divided: 2/
No access control:		 Less than 9 feet - - - - - - - - - - - - 1 7 38 9 - 55
9 feet - - - - - - - - - - - - 3 4 8 2 1 19
10 feet 2 4 - - - 6 1 3 0 0 1 5 20 132 306 113 41 613
11 feet 0 1 - - - 1 2 8 7 - - 18 119 323 1,579 950 148 3,119
12 feet 11 35 149 130 326 651 96 91 62 131 357 737 572 2,577 7,998 2,694 435 14,275
Greater than 12 feet 7 4 - - - 11 7 12 4 - 6 29 125 398 799 136 20 1,478
Subtotal 20 44 149 130 326 670 106 114 74 131 364 788 840 3,441 10,728 3,905 645 19,559
Divided: 2/
Partial access control:		 Less than 9 feet - 2 - - - 2 - 1 - - - 1 9 4 - - - 13
9 feet - - - - - - - - - - - - - 0 - - - 0
10 feet 5 29 - - - 33 3 6 6 - - 16 6 11 63 28 2 109
11 feet 4 0 - - - 4 15 43 40 10 22 130 26 89 333 69 7 523
12 feet 17 26 3 - 88 134 218 732 354 176 10 1,491 340 1,092 2,198 686 89 4,405
Greater than 12 feet 8 10 - - - 18 18 32 4 8 - 62 17 47 170 35 - 270
Subtotal 33 67 3 - 88 190 255 815 404 194 32 1,700 398 1,243 2,764 817 97 5,320
Divided: 2/
Full access control:		 Less than 9 feet 14 11 2 - - 26 6 5 8 10 3 31 - 5 3 - - 8
9 feet 1 0 6 - - 7 - 1 0 10 19 30 1 - - - - 1
10 feet 3 61 5 1 0 70 7 13 29 7 - 56 2 7 6 - - 15
11 feet 104 369 150 69 59 751 37 92 79 64 75 347 3 0 33 18 5 59
12 feet 2,606 5,876 4,381 1,923 948 15,734 631 1,929 2,106 1,654 1,286 7,606 57 341 562 122 33 1,116
Greater than 12 feet 70 161 70 36 28 366 26 57 76 28 31 217 5 8 9 - 1 24
Subtotal 2,797 6,479 4,613 2,029 1,036 16,954 707 2,096 2,299 1,772 1,414 8,287 68 361 614 140 40 1,223
Total Divided 2,849 6,590 4,765 2,159 1,450 17,814 1,068 3,024 2,777 2,098 1,810 10,776 1,306 5,045 14,105 4,862 782 26,102
Total 2,887 6,613 4,790 2,168 1,455 17,912 1,256 3,190 2,821 2,109 1,810 11,187 8,160 17,497 26,230 5,587 793 58,267

JANUARY 2025

Table HM-59 (Sheet 4 of 4)
LANE WIDTH AND ACCESS CONTROL AVERAGE DAILY TRAFFIC VOLUME
MINOR ARTERIAL MAJOR COLLECTOR MINOR COLLECTOR
LESS THAN 1,000 1,000 - 2,999 3,000 - 4,999 5,000 - 9,999 10,000 - 19,999 20,000 AND OVER TOTAL LESS THAN 1,000 1,000 - 2,999 3,000 - 4,999 5,000 - 9,999 10,000 - 19,999 20,000 AND OVER TOTAL LESS THAN 1,000 1,000 - 2,999 3,000 - 4,999 5,000 - 9,999 10,000 - 19,999 20,000 AND OVER TOTAL
Undivided: 2/ Less than 9 feet 86 113 69 115 43 12 438 770 553 181 98 15 5 1,620 289 160 28 36 5 6 525
9 feet 210 470 258 459 227 13 1,637 1,580 2,232 793 418 90 6 5,118 624 475 107 53 3 0 1,262
10 feet 551 2,288 2,024 4,356 2,736 390 12,345 5,160 9,056 4,553 4,149 896 58 23,872 1,514 1,850 573 242 29 9 4,217
11 feet 397 2,575 2,346 5,840 3,930 846 15,934 2,999 7,270 4,462 4,500 1,102 123 20,456 1,036 1,058 487 352 89 9 3,032
12 feet 658 4,778 5,629 14,148 12,541 2,671 40,426 5,788 11,581 8,999 9,907 4,058 602 40,935 1,889 2,436 1,145 677 169 7 6,323
Greater than 12 feet 272 1,595 1,420 3,792 1,891 408 9,378 2,066 4,074 2,988 2,295 522 25 11,970 400 743 206 145 19 5 1,517
Total Undivided 2,174 11,819 11,746 28,710 21,367 4,341 80,157 18,363 34,765 21,976 21,367 6,683 818 103,972 5,752 6,722 2,547 1,505 314 36 16,876
Divided: 2/
No access control:		 Less than 9 feet - 0 - 30 9 1 40 19 15 2 7 12 2 58 - 0 - - 1 - 1
9 feet 1 - 2 13 30 2 49 6 4 6 21 23 1 61 0 2 0 2 1 0 4
10 feet 2 31 42 177 484 401 1,139 36 171 91 211 137 17 663 1 10 14 29 17 1 72
11 feet 5 50 72 375 859 968 2,328 34 154 120 306 461 177 1,253 3 21 21 48 32 22 147
12 feet 40 214 249 1,496 3,163 2,167 7,328 36 587 296 1,190 869 294 3,273 80 335 156 216 149 38 974
Greater than 12 feet 7 73 103 411 641 416 1,652 56 181 218 383 107 51 996 3 23 20 40 4 0 91
Subtotal 55 369 469 2,501 5,187 3,955 12,536 188 1,113 734 2,119 1,609 541 6,303 87 392 211 334 204 61 1,289
Divided: 2/
Partial access control:		 Less than 9 feet - - - 1 4 3 9 - - - - - - - - - - - - - -
9 feet - - - - - - - - - - - - - - - - - 0 - - 0
10 feet - 2 - 28 126 13 169 - - 0 7 0 - 8 - - 0 - - - 0
11 feet 0 0 3 5 40 16 64 - 18 0 0 1 1 20 - 0 1 - - - 1
12 feet 2 34 38 242 455 167 937 8 23 3 57 21 3 116 - 2 - 13 24 - 39
Greater than 12 feet 0 0 11 5 22 5 44 - 2 0 2 4 0 8 2 - - 0 0 - 2
Subtotal 3 36 51 281 648 204 1,223 8 42 4 65 26 5 151 2 2 1 14 24 - 43
Divided: 2/
Full access control:		 Less than 9 feet - - - - - 0 0 - - - - - - - - - - - - - -
9 feet - - - - - - - - - - - - - - - - - - - - -
10 feet - - - - - - - - - 5 - - 1 6 - - - - - - -
11 feet 0 - - - 2 8 10 - - - 0 - - 0 - - - - - - -
12 feet 0 13 0 58 48 160 280 - - 25 57 24 6 111 - - - - - 2 2
Greater than 12 feet - 1 - - 3 1 5 1 4 - - - 1 5 - - - - - - -
Subtotal 0 14 0 58 53 169 295 1 4 30 57 24 7 122 - - - - - 2 2
Total Divided 58 419 520 2,841 5,888 4,329 14,053 197 1,159 768 2,242 1,659 552 6,577 88 394 212 348 228 63 1,333
Total 2,232 12,238 12,266 31,550 27,255 8,670 94,210 18,560 35,924 22,744 23,609 8,342 1,370 110,548 5,841 7,116 2,759 1,852 543 99 18,209

1/ Includes the 50 States, the District of Columbia and Puerto Rico. Some differences from other tables may be noted because these are estimated from sample data; does not include samples entirely on structures.

2/ Differences may exist from prior years due to the redefinition of divided and undivided roadways in 1999.

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Page last modified on March 4, 2025
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