United States Department of Transportation - Federal Highway Administration FHWA HomeFeedback
Highway Statistics 1999 OHPI > Highway Statistics > 1999 > Roadway Extent > Table HM-42

NATIONAL HIGHWAY SYSTEM LENGTH - 1999

MILES BY VOLUMNE - SERVICE FLOW RATIO - URBAN 1/

JANUARY 2002 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 8 195 359 16 16 8 602 756 929 300 23 35 0 2,043 764 1,124 659 39 51 8 2,645
Alaska 605 310 83 6 15 11 1,030 754 194 3 0 0 0 951 1,359 504 86 6 15 11 1,981
Arizona 226 484 277 7 3 0 997 369 401 250 48 14 55 1,137 595 885 527 55 17 55 2,134
Arkansas 3 152 212 1 9 0 377 499 768 409 63 102 13 1,854 502 920 621 64 111 13 2,231
California 220 423 548 89 65 17 1,362 728 1,265 1,194 104 46 198 3,535 948 1,688 1,742 193 111 215 4,897
Colorado 266 309 93 32 48 19 767 377 784 480 31 103 57 1,832 643 1,093 573 63 151 76 2,599
Connecticut 0 38 42 16 4 2 102 31 75 105 11 27 4 253 31 113 147 27 31 6 355
Delaware 0 0 0 0 0 0 0 14 63 116 10 2 0 205 14 63 116 10 2 0 205
Dist. of Columbia 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Florida 32 407 426 41 42 6 954 497 931 318 0 24 0 1,770 529 1,338 744 41 66 6 2,724
Georgia 165 414 204 24 0 0 807 1,790 489 204 9 0 0 2,492 1,955 903 408 33 0 0 3,299
Hawaii 0 0 6 0 0 0 6 0 42 34 7 47 9 139 0 42 40 7 47 9 145
Idaho 280 224 20 0 0 2 526 680 670 263 17 18 5 1,653 960 894 283 17 18 7 2,179
Illinois 340 860 282 6 26 0 1,514 1,142 701 5 0 8 0 1,856 1,482 1,561 287 6 34 0 3,370
Indiana 123 579 148 0 1 0 851 243 654 329 45 12 3 1,286 366 1,233 477 45 13 3 2,137
Iowa 127 245 257 4 1 0 634 1,099 782 137 0 1 0 2,019 1,226 1,027 394 4 2 0 2,653
Kansas 236 417 45 0 0 0 698 1,843 626 187 0 0 0 2,656 2,079 1,043 232 0 0 0 3,354
Kentucky 0 142 218 88 68 20 536 729 622 183 74 86 33 1,727 729 764 401 162 154 53 2,263
Louisiana 122 161 260 3 1 0 547 407 433 292 24 11 10 1,177 529 594 552 27 12 10 1,724
Maine 115 85 82 11 6 14 313 221 333 193 29 7 0 783 336 418 275 40 13 14 1,096
Maryland 4 67 98 28 19 14 230 11 252 233 20 34 8 558 15 319 331 48 53 22 788
Massachusetts 6 51 65 3 37 0 162 67 119 82 23 32 0 323 73 170 147 26 69 0 485
Michigan 72 409 210 37 12 0 740 634 1,058 483 47 51 22 2,295 706 1,467 693 84 63 22 3,035
Minnesota 245 129 241 15 8 44 682 634 1,087 615 69 95 77 2,577 879 1,216 856 84 103 121 3,259
Mississippi 193 246 107 8 2 0 556 1,018 547 72 0 1 14 1,652 1,211 793 179 8 3 14 2,208
Missouri 9 303 404 43 31 16 806 586 1,458 441 15 19 49 2,568 595 1,761 845 58 50 65 3,374
Montana 989 145 0 0 0 0 1,134 2,024 466 115 0 0 0 2,605 3,013 611 115 0 0 0 3,739
Nebraska 104 260 71 3 0 0 438 1,744 485 19 0 4 0 2,252 1,848 745 90 3 4 0 2,690
Nevada 371 68 15 27 0 0 481 1,095 231 61 6 18 2 1,413 1,466 299 76 33 18 2 1,894
New Hampshire 31 52 69 8 2 15 177 29 150 194 30 30 29 462 60 202 263 38 32 44 639
New Jersey 0 16 49 24 10 20 119 27 93 179 84 58 89 530 27 109 228 108 68 109 649
New Mexico 415 312 143 16 7 0 893 912 666 148 2 8 6 1,742 1,327 978 291 18 15 6 2,635
New York 182 301 368 5 80 5 941 579 816 272 92 27 39 1,825 761 1,117 640 97 107 44 2,766
North Carolina 0 197 351 38 32 31 649 462 968 603 19 112 9 2,173 462 1,165 954 57 144 40 2,822
North Dakota 524 6 0 0 0 0 530 2,036 53 0 0 0 0 2,089 2,560 59 0 0 0 0 2,619
Ohio 2 144 556 90 37 0 829 561 766 412 19 38 42 1,838 563 910 968 109 75 42 2,667
Oklahoma 517 173 31 0 0 0 721 1,646 409 50 0 0 0 2,105 2,163 582 81 0 0 0 2,826
Oregon 153 235 184 6 2 0 580 830 928 709 113 77 25 2,682 983 1,163 893 119 79 25 3,262
Pennsylvania 136 699 313 23 37 0 1,208 722 990 449 26 23 39 2,249 858 1,689 762 49 60 39 3,457
Rhode Island 0 0 7 13 0 1 21 41 9 14 0 0 1 65 41 9 21 13 0 2 86
South Carolina 0 90 428 46 81 24 669 342 612 288 6 12 13 1,273 342 702 716 52 93 37 1,942
South Dakota 446 180 3 0 0 0 629 1,466 674 23 20 2 5 2,190 1,912 854 26 20 2 5 2,819
Tennessee 16 195 500 10 12 1 734 403 801 233 33 0 15 1,485 419 996 733 43 12 16 2,219
Texas 932 623 476 97 65 19 2,212 3,376 2,080 722 124 40 96 6,438 4,308 2,703 1,198 221 105 115 8,650
Utah 467 270 34 0 0 0 771 333 360 246 6 31 33 1,009 800 630 280 6 31 33 1,780
Vermont 88 154 38 0 0 0 280 32 158 115 13 0 0 318 120 312 153 13 0 0 598
Virginia 53 128 320 51 149 19 720 625 676 99 7 13 42 1,462 678 804 419 58 162 61 2,182
Washington 183 159 147 6 0 6 501 994 815 221 22 34 11 2,097 1,177 974 368 28 34 17 2,598
West Virginia 83 242 130 0 0 0 455 677 327 50 12 7 0 1,073 760 569 180 12 7 0 1,528
Wisconsin 2 119 395 15 30 7 568 549 1,525 543 26 0 10 2,653 551 1,644 938 41 30 17 3,221
Wyoming 615 199 13 0 0 0 827 1,441 417 94 1 1 3 1,957 2,056 616 107 1 1 3 2,784
U.S. Total 9,706 11,617 9,328 956 958 321 32,886 38,075 30,758 12,787 1,330 1,310 1,066 85,326 47,781 42,375 22,115 2,286 2,268 1,387 118,212
Puerto Rico 4 45 45 3 5 0 102 28 15 3 0 0 0 46 32 60 48 3 5 0 148
Grand Total 9,710 11,662 9,373 959 963 321 32,988 38,103 30,773 12,790 1,330 1,310 1,066 85,372 47,813 42,435 22,163 2,289 2,273 1,387 118,360

 

JANUARY 2002 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 0 64 154 25 45 16 304 81 275 230 35 38 41 700 81 339 384 60 83 57 1,004
Alaska 1 9 34 1 6 1 52 11 24 14 6 6 10 71 12 33 48 7 12 11 123
Arizona 18 53 59 7 20 14 171 40 134 118 23 52 5 372 58 187 177 30 72 19 543
Arkansas 2 43 67 8 10 18 148 42 101 90 13 5 17 268 44 144 157 21 15 35 416
California 9 51 282 125 271 355 1,093 41 173 505 120 204 379 1,422 50 224 787 245 475 734 2,515
Colorado 33 22 53 14 12 47 181 30 134 229 51 77 72 593 63 156 282 65 89 119 774
Connecticut 0 20 101 37 47 40 245 17 76 165 23 31 51 363 17 96 266 60 78 91 608
Delaware 0 3 26 5 3 5 42 0 14 41 4 2 2 63 0 17 67 9 5 7 105
Dist. of Columbia 0 2 4 1 6 1 14 0 11 28 9 5 12 65 0 13 32 10 11 13 79
Florida 3 35 247 31 68 120 504 79 342 460 43 95 64 1,083 82 377 707 74 163 184 1,587
Georgia 15 120 220 52 13 16 436 226 316 151 69 21 16 799 241 436 371 121 34 32 1,235
Hawaii 3 15 14 2 10 5 49 9 21 50 5 16 6 107 12 36 64 7 26 11 156
Idaho 5 34 29 6 8 3 85 17 39 28 1 7 3 95 22 73 57 7 15 6 180
Illinois 17 153 182 24 113 157 646 157 343 600 121 193 247 1,661 174 496 782 145 306 404 2,307
Indiana 7 125 135 15 9 26 317 30 127 88 57 52 22 376 37 252 223 72 61 48 693
Iowa 4 48 68 6 12 8 146 141 155 36 0 0 6 338 145 203 104 6 12 14 484
Kansas 16 50 74 9 12 13 174 49 86 57 10 5 8 215 65 136 131 19 17 21 389
Kentucky 0 17 122 14 37 37 227 48 78 125 23 48 71 393 48 95 247 37 85 108 620
Louisiana 20 52 83 15 39 18 227 35 92 138 46 23 137 471 55 144 221 61 62 155 698
Maine 6 26 14 3 3 2 54 9 53 49 4 6 12 133 15 79 63 7 9 14 187
Maryland 2 12 82 69 63 24 252 12 115 162 32 47 28 396 14 127 244 101 110 52 648
Massachusetts 2 77 166 47 77 34 403 35 229 381 137 90 173 1,045 37 306 547 184 167 207 1,448
Michigan 9 69 223 77 84 37 499 98 311 464 95 146 60 1,174 107 380 687 172 230 97 1,673
Minnesota 5 13 60 13 72 68 231 51 113 121 51 34 93 463 56 126 181 64 106 161 694
Mississippi 5 38 57 7 16 5 128 48 85 78 25 17 11 264 53 123 135 32 33 16 392
Missouri 4 64 128 44 84 47 371 81 164 224 48 48 35 600 85 228 352 92 132 82 971
Montana 33 24 0 0 0 0 57 15 21 21 2 1 2 62 48 45 21 2 1 2 119
Nebraska 2 12 21 5 6 0 46 42 48 96 17 21 15 239 44 60 117 22 27 15 285
Nevada 12 9 19 22 10 6 78 9 32 31 13 5 17 107 21 41 50 35 15 23 185
New Hampshire 0 3 28 1 8 8 48 3 20 49 7 21 14 114 3 23 77 8 29 22 162
New Jersey 6 36 132 41 27 59 301 74 136 310 113 161 289 1,083 80 172 442 154 188 348 1,384
New Mexico 27 45 14 5 5 12 108 72 56 31 7 8 5 179 99 101 45 12 13 17 287
New York 36 173 258 69 84 92 712 129 350 595 86 150 259 1,569 165 523 853 155 234 351 2,281
North Carolina 4 7 183 47 72 56 369 24 114 167 56 65 39 465 28 121 350 103 137 95 834
North Dakota 25 11 4 0 0 0 40 26 25 11 0 0 0 62 51 36 15 0 0 0 102
Ohio 5 44 271 165 130 125 740 78 333 296 67 56 79 909 83 377 567 232 186 204 1,649
Oklahoma 61 107 41 0 0 0 209 153 70 52 0 0 0 275 214 177 93 0 0 0 484
Oregon 10 30 33 11 37 20 141 35 89 108 38 45 18 333 45 119 141 49 82 38 474
Pennsylvania 15 128 247 57 56 47 550 117 410 528 120 104 133 1,412 132 538 775 177 160 180 1,962
Rhode Island 0 5 17 1 11 15 49 8 28 55 10 16 8 125 8 33 72 11 27 23 174
South Carolina 1 4 75 21 39 13 153 31 102 179 25 70 64 471 32 106 254 46 109 77 624
South Dakota 12 29 9 0 0 0 50 19 20 18 1 0 1 59 31 49 27 1 0 1 109
Tennessee 1 57 115 40 64 63 340 43 246 240 28 33 47 637 44 303 355 68 97 110 977
Texas 55 142 321 166 243 86 1,013 419 885 1,303 467 301 268 3,643 474 1,027 1,624 633 544 354 4,656
Utah 26 39 74 15 10 0 164 11 90 81 17 12 10 221 37 129 155 32 22 10 385
Vermont 6 16 19 0 0 0 41 1 15 19 5 9 5 54 7 31 38 5 9 5 95
Virginia 18 57 167 57 47 44 390 82 243 234 22 67 197 845 100 300 401 79 114 241 1,235
Washington 4 33 104 34 67 21 263 91 167 185 41 47 40 571 95 200 289 75 114 61 834
West Virginia 2 64 27 1 0 0 94 14 48 28 7 12 6 115 16 112 55 8 12 6 209
Wisconsin 0 48 68 16 13 26 171 79 272 227 44 45 89 756 79 320 295 60 58 115 927
Wyoming 73 14 1 0 0 0 88 45 24 8 0 1 0 78 118 38 9 0 1 0 166
U.S. Total 620 2,352 4,932 1,431 2,069 1,810 13,214 3,007 7,455 9,504 2,244 2,518 3,186 27,914 3,627 9,807 14,436 3,675 4,587 4,996 41,128
Puerto Rico 1 39 72 11 16 9 148 6 13 34 10 16 11 90 7 52 106 21 32 20 238
Grand Total 621 2,391 5,004 1,442 2,085 1,819 13,362 3,013 7,468 9,538 2,254 2,534 3,197 28,004 3,634 9,859 14,542 3,696 4,619 5,016 41,366

Capacity (service flow) calculation procedures are based on the Highway Capacity Manual, Third Edition, 1998, published by the Transportation Research Board. Some differences fro other tables may be noted because these are estimated from sample data and do not include samples entirely on structures.

OHPI Home | Highway Statistics 1999 | Data Feedback

FHWA Home | Feedback
FHWA
United States Department of Transportation - Federal Highway Administration