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Highway Statistics 2008

Federal Highway-Aid Highway Length - 2008 1/ Miles by Lane Width, Access Control, and Average Daily Traffic Volume National Summary

October 2009
Sheet 1 OF 3
Table HM-39

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LANE WIDTH AND ACCESS CONTROL NATIONAL HIGHWAY SYSTEM - RURAL TOTAL
INTERSTATE SYSTEM OTHER
AVERAGE DAILY TRAFFIC VOLUME TOTAL AVERAGE DAILY TRAFFIC VOLUME TOTAL
LESS THAN 10,000 10,000-19,999 20,000-34,999 35,000 AND OVER LESS THAN 1,000 1,000-1,999 2,000-2,999 3,000-3,999 4,000-4,999 5,000-9,999 10,000-14,999 15,000 AND OVER
Undivided: 2/
Less than 9 feet - - - - - - 5 - - - 3 15 - 23 23
9 feet - - - - - - 47 65 8 2 37 36 - 195 195
10 feet - - - - - 49 177 171 122 123 363 68 87 1,160 1,160
11 feet 61 - - - 61 255 957 794 753 755 1,470 269 223 5,476 5,537
12 feet 839 17 6 7 869 4,109 9,424 8,927 6,881 5,290 11,473 2,467 1,226 49,797 50,666
Greater than 12 feet 83 2 2 - 87 265 187 254 390 257 567 193 44 2,157 2,244
Total Undivided 983 19 8 7 1,017 4,678 10,797 10,211 8,154 6,427 13,913 3,048 1,580 58,808 59,825
Divided: 2/
No access control:
Less than 9 feet - - - - - - - - - - - - - - -
9 feet - - - - - - - - - - - - - - -
10 feet - - - - - - - - - 1 7 6 - 14 14
11 feet - - - - - - 1 37 21 68 247 164 134 672 672
12 feet - - - - - 1 51 398 738 649 3,855 2,592 2,064 10,348 10,348
Greater than 12 feet - - - 1 1 - - - 3 29 136 18 132 318 319
Subtotal - - - 1 1 1 52 435 762 747 4,245 2,780 2,330 11,352 11,353
Partial access control:
Less than 9 feet - - - - - - - - - - - 28 - 28 28
9 feet - - - - - - - - - - - - 8 8 8
10 feet - - - - - - - - - - 24 - - 24 24
11 feet - - - - - - - 2 - 4 - 24 62 92 92
12 feet 5 2 4 - 11 - 73 429 301 385 2,420 1,805 1,848 7,261 7,272
Greater than 12 feet - - 1 1 2 - - - - - 58 5 16 79 81
Subtotal 5 2 5 1 13 - 73 431 301 389 2,502 1,862 1,934 7,492 7,505
Full access control:
Less than 9 feet 4 - - - 4 - - - - - 1 - - 1 5
9 feet - - - - - - - - - - - - - - -
10 feet - 3 - - 3 - - - - - - 16 - 16 19
11 feet 14 176 - 49 239 - - - - - 78 29 61 168 407
12 feet 5,825 8,917 8,530 4,896 28,168 - 43 - 126 62 1,211 808 1,648 3,898 32,066
Greater than 12 feet 49 303 261 90 703 - - - - - 9 21 27 57 760
Subtotal 5,892 9,399 8,791 5,035 29,117 - 43 - 126 62 1,299 874 1,736 4,140 33,257
Total Divided 5,897 9,401 8,796 5,037 29,131 1 168 866 1,189 1,198 8,046 5,516 6,000 22,984 52,115
Total 6,880 9,420 8,804 5,044 30,148 4,679 10,965 11,077 9,343 7,625 21,959 8,564 7,580 81,792 111,940

October 2009
Sheet 2 OF 3
Table HM-39

LANE WIDTH AND ACCESS CONTROL NATIONAL HIGHWAY SYSTEM - URBAN
INTERSTATE SYSTEM OTHER TOTAL
AVERAGE DAILY TRAFFIC VOLUME TOTAL AVERAGE DAILY TRAFFIC VOLUME TOTAL
LESS THAN 30,000 30,000-69,999 70,000-124,999 125,000-174,999 175,000 AND OVER LESS THAN 7,500 7,500-14,999 15,000-34,999 35,000-59,999 60,000 AND OVER
Undivided: 2/
Less than 9 feet - - - - - - 8 2 13 - - 23 23
9 feet - - - - - - 1 8 24 2 - 35 35
10 feet - - - - - - 145 227 342 23 - 737 737
11 feet - - - - - - 338 493 724 106 2 1,663 1,663
12 feet 17 6 1 - - 24 1,597 3,152 4,095 465 20 9,329 9,353
Greater than 12 feet 2 2 - - - 4 345 600 506 53 3 1,507 1,511
Total Undivided 19 8 1 - - 28 2,434 4,482 5,704 649 25 13,294 13,322
Divided: 2/
No access control:
Less than 9 feet - - - - - - 1 1 1 4 - 7 7
9 feet - - - - - - - 5 1 - - 6 6
10 feet - - - - - - 3 8 70 16 11 108 108
11 feet - - - - - - 21 84 434 231 16 786 786
12 feet 1 - - - - 1 368 955 3,438 1,423 233 6,417 6,418
Greater than 12 feet - 16 - - - 16 6 58 204 80 1 349 365
Subtotal 1 16 - - - 17 399 1,111 4,148 1,754 261 7,673 7,690
Partial access control:
Less than 9 feet - - - - - - - - - - - - -
9 feet - - - - - - - - - - - - -
10 feet - - - - - - 3 1 17 23 5 49 49
11 feet - - - - - - 15 74 225 127 58 499 499
12 feet 16 2 - - - 18 257 884 2,195 1,006 416 4,758 4,776
Greater than 12 feet 8 57 6 - - 71 1 50 134 17 3 205 276
Subtotal 24 59 6 - - 89 276 1,009 2,571 1,173 482 5,511 5,600
Full access control:
Less than 9 feet 4 - - - - 4 - - 1 - 2 3 7
9 feet 1 1 8 - - 10 - - - - - - 10
10 feet 3 5 3 - - 11 - 2 15 1 8 26 37
11 feet 37 35 59 31 74 236 - 7 52 49 116 224 460
12 feet 2,582 6,075 4,099 1,833 1,082 15,671 81 618 2,263 2,088 2,791 7,841 23,512
Greater than 12 feet 147 293 95 32 32 599 1 13 60 46 102 222 821
Subtotal 2,774 6,409 4,264 1,896 1,188 16,531 82 640 2,391 2,184 3,019 8,316 24,847
Total Divided 2,799 6,484 4,270 1,896 1,188 16,637 757 2,760 9,110 5,111 3,762 21,500 38,137
Total 2,818 6,492 4,271 1,896 1,188 16,665 3,191 7,242 14,814 5,760 3,787 34,794 51,459

October 2009
Sheet 3 OF 3
Table HM-39

LANE WIDTH AND ACCESS CONTROL OTHER FEDERAL - AID HIGHWAYS
RURAL URBAN TOTAL
AVERAGE DAILY TRAFFIC VOLUME TOTAL AVERAGE DAILY TRAFFIC VOLUME TOTAL
LESS THAN 100 100-499 500-999 1,000-4,999 5,000-9,999 10,000 AND OVER LESS THAN 1,000 1,000-2,999 3,000-4,999 5,000-9,999 10,000-19,999 20,000 AND OVER
Undivided: 2/
Less than 9 feet 1,618 4,643 803 772 49 - 7,885 781 1,202 421 420 144 6 2,974 10,859
9 feet 3,088 9,921 6,706 7,023 164 15 26,917 2,588 3,122 1,410 1,024 465 57 8,666 35,583
10 feet 7,866 39,198 26,230 42,410 3,013 380 119,097 5,383 11,952 7,267 7,757 4,290 1,190 37,839 156,936
11 feet 10,020 31,108 31,584 57,832 6,751 962 138,257 4,924 10,736 7,356 11,387 7,394 2,346 44,143 182,400
12 feet 16,151 51,183 43,148 117,311 20,781 4,208 252,782 7,747 22,196 17,823 31,637 25,736 9,232 114,371 367,153
Greater than 12 feet 2,325 2,878 949 6,741 1,245 201 14,339 1,701 5,171 4,939 8,453 5,317 980 26,561 40,900
Total Undivided 41,068 138,931 109,420 232,089 32,003 5,766 559,277 23,124 54,379 39,216 60,678 43,346 13,811 234,554 793,831
Divided: 2/
No access control:
Less than 9 feet - - - - - - - - 10 1 - 10 2 23 23
9 feet - - - - - 7 7 - - - 25 33 22 80 87
10 feet - - - 13 7 5 25 1 5 22 177 313 256 774 799
11 feet - - - 120 106 173 399 101 126 127 411 943 1,558 3,266 3,665
12 feet - - 3 1,055 1,086 1,844 3,988 70 298 437 2,151 5,718 8,129 16,803 20,791
Greater than 12 feet - - 3 7 103 18 131 6 9 21 178 431 547 1,192 1,323
Subtotal - - 6 1,195 1,302 2,047 4,550 178 448 608 2,942 7,448 10,514 22,138 26,688
Partial access control:
Less than 9 feet - - - - - - - - - - - 10 1 11 11
9 feet - - - - - - - - - 6 - 7 3 16 16
10 feet - - - - - - - - - - 3 21 40 64 64
11 feet - - - - 3 24 27 2 - 1 34 76 159 272 299
12 feet - - 21 186 473 382 1,062 12 43 123 484 1,211 1,624 3,497 4,559
Greater than 12 feet - - - 4 11 14 29 - 2 12 39 114 78 245 274
Subtotal - - 21 190 487 420 1,118 14 45 142 560 1,439 1,905 4,105 5,223
Full access control:
Less than 9 feet - - - - - - - - - - - - - - -
9 feet - - - - - - - - - - - 1 - 1 1
10 feet - - - - - - - - - 3 - 5 2 10 10
11 feet - - - - - - - - - - 6 5 11 22 22
12 feet - - - 4 57 74 135 - - 21 72 240 523 856 991
Greater than 12 feet - - - - - - - - 2 - 1 6 10 19 19
Subtotal - - - 4 57 74 135 - 2 24 79 257 546 908 1,043
Total Divided - - 27 1,389 1,846 2,541 5,803 192 495 774 3,581 9,144 12,965 27,151 32,954
Total 41,068 138,931 109,447 233,478 33,849 8,307 565,080 23,316 54,874 39,990 64,259 52,490 26,776 261,705 826,785

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 and do not include samples entirely on structures. Indiana may exclude up to 788 miles of Federal agency owned roads.

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

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Updated: 01/03/2012

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United States Department of Transportation - Federal Highway Administration