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Highway Statistics 2005 OHPI > Highway Statistics > 2005 > Roadway Extent, Characteristics, and Performance > Table HM-42

NATIONAL HIGHWAY SYSTEM LENGTH - 2005

MILES BY VOLUME - SERVICE FLOW RATIO - RURAL 1/

OCTOBER 2006 Table HM-42
SHEET 1 OF 2
STATE VOLUME-SERVICE FLOW RATIO (V/SF)
INTERSTATE SYSTEM OTHER TOTAL
<0.21 0.21-0.40 0.41-0.70 0.71-0.79 0.80-0.95 >0.95 TOTAL < 0.21 0.21-0.40 0.41-0.70 0.71-0.79 0.80-0.95 >0.95 TOTAL < 0.21 0.21-0.40 0.41-0.70 0.71-0.79 0.80-0.95 >0.95 TOTAL
Alabama - 121 280 91 36 20 548 466 1,213 348 9 1 6 2,043 466 1,334 628 100 37 26 2,591
Alaska 593 245 123 5 46 1 1,013 738 215 5 - - - 958 1,331 460 128 5 46 1 1,971
Arizona 105 574 268 14 9 10 980 360 549 150 54 1 2 1,116 465 1,123 418 68 10 12 2,096
Arkansas - 148 253 21 34 10 466 673 684 323 55 59 22 1,816 673 832 576 76 93 32 2,282
California 78 349 356 188 259 94 1,324 701 1,351 917 148 224 104 3,445 779 1,700 1,273 336 483 198 4,769
Colorado 205 337 111 9 25 - 687 600 730 356 104 45 23 1,858 805 1,067 467 113 70 23 2,545
Connecticut - 10 17 12 4 - 43 12 56 73 11 2 4 158 12 66 90 23 6 4 201
Delaware - - - - - - - 7 105 45 1 8 5 171 7 105 45 1 8 5 171
Dist. of Columbia - - - - - - - - - - - - - - - - - - - - -
Florida - 149 568 7 20 1 745 309 882 245 - 26 2 1,464 309 1,031 813 7 46 3 2,209
Georgia 1 195 383 66 57 13 715 1,211 605 275 33 - 1 2,125 1,212 800 658 99 57 14 2,840
Hawaii - - - 6 - - 6 - 54 35 7 6 - 102 - 54 35 13 6 - 108
Idaho 240 281 - - - - 521 1,061 512 51 9 8 2 1,643 1,301 793 51 9 8 2 2,164
Illinois 426 852 122 - 46 15 1,461 1,279 468 - - - - 1,747 1,705 1,320 122 - 46 15 3,208
Indiana 2/ 103 615 108 7 19 1 853 491 688 138 2 8 2 1,329 594 1,303 246 9 27 3 2,182
Iowa 31 319 241 32 4 - 627 1,154 832 41 - - - 2,027 1,185 1,151 282 32 4 - 2,654
Kansas 310 312 20 - - - 642 2,036 504 47 - - - 2,587 2,346 816 67 - - - 3,229
Kentucky - 144 349 38 19 1 551 718 669 226 57 31 25 1,726 718 813 575 95 50 26 2,277
Louisiana 33 186 228 29 2 - 478 307 582 130 1 - - 1,020 340 768 358 30 2 - 1,498
Maine 137 117 35 5 5 - 299 183 451 146 2 6 - 788 320 568 181 7 11 - 1,087
Maryland 33 31 69 3 29 18 183 102 168 159 7 13 9 458 135 199 228 10 42 27 641
Massachusetts 10 26 31 9 - 15 91 40 42 64 20 - - 166 50 68 95 29 - 15 257
Michigan 51 291 215 - 36 17 610 620 995 413 49 4 53 2,134 671 1,286 628 49 40 70 2,744
Minnesota 194 130 214 42 40 60 680 664 1,371 420 68 30 8 2,561 858 1,501 634 110 70 68 3,241
Mississippi 43 328 58 29 28 - 486 748 488 346 - - 10 1,592 791 816 404 29 28 10 2,078
Missouri 153 340 249 - 38 21 801 626 1,247 423 104 67 98 2,565 779 1,587 672 104 105 119 3,366
Montana 899 230 - - - - 1,129 1,894 669 48 1 5 - 2,617 2,793 899 48 1 5 - 3,746
Nebraska 81 254 89 - - - 424 1,856 444 13 - - - 2,313 1,937 698 102 - - - 2,737
Nevada 347 42 37 - - 25 451 1,079 230 69 2 14 29 1,423 1,426 272 106 2 14 54 1,874
New Hampshire 49 62 34 - 3 3 151 29 162 196 9 7 8 411 78 224 230 9 10 11 562
New Jersey - 14 27 - 11 13 65 9 67 97 - 72 6 251 9 81 124 - 83 19 316
New Mexico 310 381 152 - - 1 844 1,252 380 63 - - 14 1,709 1,562 761 215 - - 15 2,553
New York 3/ 102 292 381 57 50 66 948 515 868 326 21 53 38 1,821 617 1,160 707 78 103 104 2,769
North Carolina 9 66 219 65 112 50 521 119 924 690 77 91 48 1,949 128 990 909 142 203 98 2,470
North Dakota 418 103 - - - - 521 2,004 85 - - - - 2,089 2,422 188 - - - - 2,610
Ohio 36 138 353 60 73 63 723 745 709 144 23 3 - 1,624 781 847 497 83 76 63 2,347
Oklahoma 64 394 187 35 3 1 684 1,353 664 36 - - - 2,053 1,417 1,058 223 35 3 1 2,737
Oregon 27 306 201 13 7 - 554 1,118 893 531 27 18 27 2,614 1,145 1,199 732 40 25 27 3,168
Pennsylvania 87 525 387 30 34 8 1,071 679 750 317 54 - - 1,800 766 1,275 704 84 34 8 2,871
Rhode Island - - 5 11 5 1 22 19 22 5 - - - 46 19 22 10 11 5 1 68
South Carolina 9 7 259 102 132 67 576 321 527 253 - 6 4 1,111 330 534 512 102 138 71 1,687
South Dakota 367 229 14 - - - 610 1,859 292 10 13 9 4 2,187 2,226 521 24 13 9 4 2,797
Tennessee 29 152 423 66 8 13 691 501 688 204 4 9 - 1,406 530 840 627 70 17 13 2,097
Texas 782 599 700 41 51 19 2,192 3,145 2,526 661 63 63 14 6,472 3,927 3,125 1,361 104 114 33 8,664
Utah 330 269 123 - - - 722 270 509 138 3 15 37 972 600 778 261 3 15 37 1,694
Vermont 98 109 72 1 - - 280 30 215 68 4 - 5 322 128 324 140 5 - 5 602
Virginia 50 252 317 32 10 - 661 935 305 111 - - 5 1,356 985 557 428 32 10 5 2,017
Washington 44 225 149 10 39 - 467 867 920 200 10 12 8 2,017 911 1,145 349 20 51 8 2,484
West Virginia 51 211 115 9 - 8 394 580 317 104 - 37 32 1,070 631 528 219 9 37 40 1,464
Wisconsin 5 33 326 78 39 - 481 445 1,702 328 12 4 - 2,491 450 1,735 654 90 43 - 2,972
Wyoming 499 304 20 - - - 823 1,467 373 95 - 24 3 1,962 1,966 677 115 - 24 3 2,785
U.S. Total 7,439 11,297 8,888 1,223 1,333 635 30,815 38,197 30,702 10,083 1,064 981 658 81,685 45,636 41,999 18,971 2,287 2,314 1,293 112,500
Puerto Rico - 9 20 - - 2 31 10 13 7 - - - 30 10 22 27 - - 2 61
Grand Total 7,439 11,306 8,908 1,223 1,333 637 30,846 38,207 30,715 10,090 1,064 981 658 81,715 45,646 42,021 18,998 2,287 2,314 1,295 112,561

MILES BY VOLUME - SERVICE FLOW RATIO - URBAN 1/

OCTOBER 2006 Table HM-42
SHEET 2 OF 2
STATE VOLUME-SERVICE FLOW RATIO (V/SF)
INTERSTATE SYSTEM OTHER TOTAL
<0.21 0.21-0.40 0.41-0.70 0.71-0.79 0.80-0.95 >0.95 TOTAL <0.21 0.21-0.40 0.41-0.70 0.71-0.79 0.80-0.95 >0.95 TOTAL <0.21 0.21-0.40 0.41-0.70 0.71-0.79 0.80-0.95 >0.95 TOTAL
Alabama - 36 151 28 52 86 353 59 315 270 38 16 26 724 59 351 421 66 68 112 1,077
Alaska 3 36 24 2 4 - 69 18 24 19 2 5 7 75 21 60 43 4 9 7 144
Arizona - 26 72 20 26 44 188 17 140 165 32 47 43 444 17 166 237 52 73 87 632
Arkansas - 19 66 35 29 39 188 67 87 52 11 14 15 246 67 106 118 46 43 54 434
California 3 46 140 116 337 492 1,134 60 220 446 204 330 389 1,649 63 266 586 320 667 881 2,783
Colorado 8 45 101 35 39 41 269 107 182 303 43 70 33 738 115 227 404 78 109 74 1,007
Connecticut - 12 92 41 107 50 302 17 102 190 49 51 48 457 17 114 282 90 158 98 759
Delaware - 1 16 10 5 9 41 9 26 76 5 6 2 124 9 27 92 15 11 11 165
Dist. of Columbia - - 4 1 5 3 13 1 6 36 8 9 9 69 1 6 40 9 14 12 82
Florida - 22 268 49 212 164 715 72 343 577 62 142 175 1,371 72 365 845 111 354 339 2,086
Georgia - 41 210 34 122 121 528 300 346 244 10 44 30 974 300 387 454 44 166 151 1,502
Hawaii 2 9 21 5 7 5 49 8 58 80 18 8 11 183 10 67 101 23 15 16 232
Idaho 5 35 20 11 4 16 91 18 49 32 7 7 2 115 23 84 52 18 11 18 206
Illinois 27 160 172 37 115 188 699 166 500 774 141 156 27 1,764 193 660 946 178 271 215 2,463
Indiana 2/ 1 118 97 51 29 17 313 40 141 112 57 20 10 380 41 259 209 108 49 27 693
Iowa 1 22 69 16 31 14 153 157 158 92 - - - 407 158 180 161 16 31 14 560
Kansas 41 42 78 18 8 27 214 116 106 51 3 16 10 302 157 148 129 21 24 37 516
Kentucky - 7 62 21 54 65 209 27 106 151 40 20 42 386 27 113 213 61 74 107 595
Louisiana 16 24 132 52 40 53 317 111 197 144 24 74 99 649 127 221 276 76 114 152 966
Maine 12 29 25 1 1 - 68 10 80 37 3 4 1 135 22 109 62 4 5 1 203
Maryland 6 10 77 53 82 68 296 22 114 226 44 79 28 513 28 124 303 97 161 96 809
Massachusetts 2 51 198 50 61 115 477 67 338 466 85 195 63 1,214 69 389 664 135 256 178 1,691
Michigan 10 72 219 55 127 151 634 87 391 561 92 128 114 1,373 97 463 780 147 255 265 2,007
Minnesota 4 12 36 18 44 120 234 50 104 126 75 36 98 489 54 116 162 93 80 218 723
Mississippi 1 43 88 18 28 18 196 70 164 106 8 25 26 399 71 207 194 26 53 44 595
Missouri 25 37 128 101 45 29 365 71 198 254 9 55 73 660 96 235 382 110 100 102 1,025
Montana 21 41 - - - - 62 9 29 25 - 1 - 64 30 70 25 - 1 - 126
Nebraska 2 14 22 6 9 5 58 56 81 98 18 14 6 273 58 95 120 24 23 11 331
Nevada 20 18 21 11 21 21 112 16 38 43 5 22 21 145 36 56 64 16 43 42 257
New Hampshire 3 10 23 8 20 10 74 19 37 72 18 13 4 163 22 47 95 26 33 14 237
New Jersey 1 14 82 56 59 152 364 42 303 459 101 202 272 1,379 43 317 541 157 261 424 1,743
New Mexico 24 62 43 5 9 12 155 85 104 31 - 5 1 226 109 166 74 5 14 13 381
New York 3/ 13 116 201 113 70 195 708 84 279 762 95 126 297 1,643 97 395 963 208 196 492 2,351
North Carolina - 9 146 83 148 177 563 64 188 297 65 98 60 772 64 197 443 148 246 237 1,335
North Dakota 19 21 10 - - - 50 26 23 13 - - - 62 45 44 23 - - - 112
Ohio 58 45 237 61 221 227 849 317 457 301 63 45 27 1,210 375 502 538 124 266 254 2,059
Oklahoma 4 65 93 20 38 28 248 107 150 68 9 18 10 362 111 215 161 29 56 38 610
Oregon 6 23 76 12 37 18 172 42 102 159 31 35 23 392 48 125 235 43 72 41 564
Pennsylvania 20 98 273 92 81 124 688 185 668 640 180 180 80 1,933 205 766 913 272 261 204 2,621
Rhode Island - - 19 4 6 21 50 7 42 73 5 17 5 149 7 42 92 9 23 26 199
South Carolina 2 4 114 23 50 44 237 30 167 268 70 75 46 656 32 171 382 93 125 90 893
South Dakota 5 49 15 - - - 69 26 30 14 2 - - 72 31 79 29 2 - - 141
Tennessee 5 35 192 29 49 104 414 51 226 254 52 62 57 702 56 261 446 81 111 161 1,116
Texas 27 126 266 87 252 281 1,039 421 880 1,256 229 399 501 3,686 448 1,006 1,522 316 651 782 4,725
Utah 9 35 79 31 42 18 214 11 94 113 25 11 12 266 20 129 192 56 53 30 480
Vermont 4 16 18 - 2 - 40 5 16 26 4 3 2 56 9 32 44 4 5 2 96
Virginia 26 43 189 60 97 34 449 86 347 383 52 69 49 986 112 390 572 112 166 83 1,435
Washington - 42 109 69 62 16 298 76 184 207 49 63 33 612 76 226 316 118 125 49 910
West Virginia 7 64 81 5 1 - 158 33 78 58 7 10 3 189 40 142 139 12 11 3 347
Wisconsin - 27 139 20 39 38 263 73 397 330 67 49 45 961 73 424 469 87 88 83 1,224
Wyoming 48 43 1 - - - 92 43 34 3 - - - 80 91 77 4 - - - 172
U.S. Total 491 1,975 5,015 1,673 2,927 3,460 15,541 3,661 9,449 11,543 2,217 3,074 2,935 32,879 4,152 11,424 16,558 3,890 6,001 6,395 48,420
Puerto Rico 2 53 96 27 25 30 233 9 23 30 10 21 11 104 11 76 126 37 46 41 337
Grand Total 493 2,028 5,111 1,700 2,952 3,490 15,774 3,670 9,472 11,573 2,227 3,095 2,946 32,983 4,163 11,500 16,684 3,927 6,047 6,436 48,757

Footnotes

1/ In 2001, updated capacity (service flow) calculation procedures were instituted in the HPMS data reporting process.The procedures are based on the Highway Capacity Manual 2000, published by the Transportation Research Board. For multilane facilities volume-service flow ratio is determined by dividing the peak traffic in the peak direction by the capacity.For all other facilities the ratio is determined by dividing the peak traffic by the capacity. Peak traffic is estimated as AADT *K, where K is the design hour volume (30th highest hour) as a percent of AADT. Some differences from other tables may be noted because these are estimated from sample data and do not include samples entirely on structures.

2/ Excludes 770 miles of Federal agency owned roads.

3/ 2004 data used.


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