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Highway Statistics Series

Highway Statistics 1998


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FUNCTIONAL SYSTEM LENGTH – 1998 1/

MILES BY VOLUME – SERVICE FLOW RATIO – RURAL

OCTOBER 1999
TABLE HM-61

Rural

STATE VOLUME-SERVICE FLOW RATIO (V/SF)
INTERSTATE OTHER PRINCIPAL ARTERIAL
< 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 0 167 377 33 16 9 602 863 955 248 9 0 0 2,075
Alaska 615 300 83 0 20 11 1,029 639 166 3 0 0 0 808
Arizona 681 303 12 0 0 0 996 566 448 156 0 10 6 1,186
Arkansas 0 144 234 1 13 2 394 753 821 457 74 119 6 2,230
California 198 389 566 85 97 23 1,358 736 1,239 1,405 116 76 101 3,673
Colorado 217 318 87 45 48 55 770 683 861 418 130 45 63 2,200
Connecticut 0 38 42 17 4 2 103 32 69 104 21 25 11 262
Delaware 0 0 0 0 0 0 0 8 77 113 6 11 4 219
Dist. of Columbia 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Florida 6 412 445 60 19 12 954 1,531 1,783 346 2 37 8 3,707
Georgia 179 399 191 20 1 0 790 2,007 482 266 8 14 12 2,789
Hawaii 0 0 6 0 0 0 6 0 39 61 7 18 0 125
Idaho 244 257 24 0 0 2 527 634 770 238 13 6 12 1,673
Illinois 320 896 272 2 18 10 1,518 1,661 929 19 17 0 5 2,631
Indiana 92 588 140 32 0 0 852 315 834 483 21 42 13 1,708
Iowa 113 263 216 40 1 1 634 1,819 1,433 169 5 1 0 3,427
Kansas 237 393 68 0 0 0 698 2,235 811 124 0 0 0 3,170
Kentucky 0 125 182 89 97 42 535 750 811 247 66 125 49 2,048
Louisiana 128 150 265 1 3 0 547 411 545 250 5 6 10 1,227
Maine 129 85 69 0 17 13 313 240 315 195 36 1 0 787
Maryland 0 38 94 30 40 28 230 74 199 190 49 32 3 547
Massachusetts 12 41 66 6 32 5 162 78 126 57 46 0 4 311
Michigan 116 298 270 22 27 7 740 850 1,268 459 56 68 60 2,761
Minnesota 223 102 275 25 20 36 681 1,044 1,599 679 94 93 66 3,575
Mississippi 134 282 125 9 7 0 557 1,219 552 70 2 0 8 1,851
Missouri 9 297 385 55 28 33 807 904 1,665 441 21 20 50 3,101
Montana 921 213 0 0 0 0 1,134 2,050 448 120 4 0 0 2,622
Nebraska 104 267 63 3 0 0 437 2,197 492 23 0 4 0 2,716
Nevada 363 58 32 6 21 0 480 1,095 213 64 3 14 1 1,390
New Hampshire 31 45 79 4 4 14 177 21 160 192 33 25 25 456
New Jersey 0 2 54 18 17 28 119 29 110 94 65 108 126 532
New Mexico 403 327 141 7 4 10 892 922 712 150 6 0 8 1,798
New York 62 317 319 15 77 5 795 652 902 335 33 46 30 1,998
North Carolina 0 156 345 74 33 27 635 473 1,016 521 85 64 75 2,234
North Dakota 503 27 0 0 0 0 530 2,876 53 0 0 0 0 2,929
Ohio 2 132 495 100 100 1 830 837 900 371 31 65 21 2,225
Oklahoma 97 388 184 31 11 9 720 1,599 606 159 1 1 0 2,366
Oregon 98 291 174 0 11 6 580 932 1,013 616 78 91 98 2,828
Pennsylvania 67 710 370 10 41 3 1,201 771 1,112 497 48 45 21 2,494
Rhode Island 0 0 4 15 2 1 22 42 8 12 0 3 1 66
South Carolina 0 55 438 64 69 45 671 514 571 330 17 12 10 1,454
South Dakota 398 224 7 0 0 0 629 2,044 443 44 2 6 0 2,539
Tennessee 17 221 434 3 55 3 733 531 962 264 46 8 7 1,818
Texas 840 758 386 64 112 56 2,216 3,549 2,368 811 41 74 18 6,861
Utah 442 273 55 0 0 0 770 400 289 232 17 21 50 1,009
Vermont 83 154 43 0 0 0 280 29 163 116 9 0 0 317
Virginia 0 107 340 123 89 52 711 567 690 237 18 8 31 1,551
Washington 44 158 201 57 26 16 502 949 886 193 25 14 12 2,079
West Virginia 59 222 175 0 0 0 456 662 342 63 14 0 0 1,081
Wisconsin 22 119 280 83 42 27 573 491 1,710 1,028 96 24 12 3,361
Wyoming 541 273 12 0 0 0 826 1,377 500 97 4 3 5 1,986
U.S. Total 8,750 11,782 9,125 1,249 1,222 594 32,722 45,661 35,466 13,767 1,480 1,385 1,042 98,801
Puerto Rico 4 41 44 11 1 0 101 17 49 28 0 3 1 98
Grand Total 8,754 11,823 9,169 1,260 1,223 594 32,823 45,678 35,515 13,795 1,480 1,388 1,043 98,899

OCTOBER 1999
SHEET 2 of 4
TABLE HM-61

Rural

STATE VOLUME SERVICE FLOW RATIO (V/SF)
MINOR ARTERIAL MAJOR COLLECTOR
< 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 2,722 808 116 11 36 0 3,693 11,308 288 111 13 0 0 11,720
Alaska 417 9 0 0 10 0 436 1,319 90 11 0 0 1 1,421
Arizona 686 417 67 67 15 5 1,257 4,015 363 95 22 0 11 4,506
Arkansas 1,679 1,023 201 13 20 13 2,949 11,897 524 74 1 21 1 12,518
California 4,015 1,772 691 127 150 145 6,900 10,903 1,565 388 76 20 49 13,001
Colorado 2,515 517 551 6 85 7 3,681 5,672 263 45 9 1 3 5,993
Connecticut 167 214 78 33 0 6 498 917 183 84 0 27 0 1,211
Delaware 19 52 13 5 1 15 105 338 145 58 3 3 5 552
Dist. of Columbia 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Florida 1,788 624 152 3 0 15 2,582 3,950 400 8 0 0 10 4,368
Georgia 4,705 747 149 0 0 1 5,602 12,473 908 202 19 9 75 13,686
Hawaii 179 118 39 7 17 15 375 244 82 26 0 0 0 352
Idaho 994 240 61 1 13 0 1,309 5,253 61 28 0 4 0 5,346
Illinois 3,647 973 209 0 0 0 4,829 13,248 914 12 0 0 17 14,191
Indiana 851 1,056 307 4 11 6 2,235 7,498 2,802 405 13 13 0 10,731
Iowa 3,511 427 18 0 0 0 3,956 13,803 476 13 0 4 0 14,296
Kansas 4,017 272 3 0 0 2 4,294 22,749 254 4 3 4 0 23,014
Kentucky 611 752 194 22 19 10 1,608 5,215 1,289 348 34 74 23 6,983
Louisiana 695 633 175 15 0 38 1,556 5,886 830 68 50 5 7 6,846
Maine 488 369 154 33 27 0 1,071 2,737 379 105 5 0 0 3,226
Maryland 196 417 268 54 3 15 953 1,224 503 69 28 22 10 1,856
Massachusetts 381 208 64 11 5 1 670 1,638 142 7 0 9 1 1,797
Michigan 1,962 1,422 579 58 55 5 4,081 14,690 2,002 276 0 0 20 16,988
Minnesota 4,916 892 409 1 44 21 6,283 15,788 353 128 18 8 17 16,312
Mississippi 3,248 648 10 5 5 0 3,916 11,553 442 89 11 2 4 12,101
Missouri 2,290 992 134 9 16 6 3,447 17,184 633 41 0 13 40 17,911
Montana 2,897 81 7 0 0 0 2,985 6,998 24 23 19 0 0 7,064
Nebraska 4,022 130 45 0 2 0 4,199 11,408 103 19 5 0 4 11,539
Nevada 671 24 8 20 1 1 725 2,095 132 7 2 0 1 2,237
New Hampshire 170 208 72 5 7 23 485 821 216 76 17 29 3 1,162
New Jersey 116 117 164 9 32 53 491 1,064 307 175 15 9 11 1,581
New Mexico 1,247 427 182 0 9 1 1,866 3,495 361 111 4 0 8 3,979
New York 2,100 1,650 306 0 56 6 4,118 4,751 1,203 118 13 5 6 6,096
North Carolina 894 1,152 770 66 60 60 3,002 6,207 1,359 634 145 79 242 8,666
North Dakota 2,507 7 0 0 0 0 2,514 11,275 0 0 0 0 0 11,275
Ohio 1,032 1,029 693 0 69 7 2,830 9,337 1,757 449 254 33 47 11,877
Oklahoma 2,367 364 15 0 0 3 2,749 20,891 406 51 0 0 0 21,348
Oregon 1,759 289 161 0 1 2 2,212 8,527 554 43 16 0 3 9,143
Pennsylvania 2,554 2,088 299 95 20 49 5,105 6,996 901 130 0 36 0 8,063
Rhode Island 46 27 3 0 0 0 76 163 11 2 0 0 0 176
South Carolina 1,806 1,213 591 7 12 32 3,661 7,212 624 257 41 4 0 8,138
South Dakota 3,271 66 9 0 5 0 3,351 12,255 179 25 5 1 0 12,465
Tennessee 1,791 1,163 447 0 9 1 3,411 4,604 619 66 13 61 0 5,363
Texas 6,843 2,421 309 41 26 3 9,643 33,382 1,879 385 2 31 5 35,684
Utah 1,055 359 68 32 19 3 1,536 3,018 232 57 1 0 6 3,314
Vermont 281 320 103 17 8 5 734 1,653 258 79 0 2 0 1,992
Virginia 1,107 1,634 656 0 24 3 3,424 7,614 1,358 690 43 34 0 9,739
Washington 1,530 346 77 7 12 5 1,977 7,553 739 66 0 22 0 8,380
West Virginia 873 414 215 7 16 9 1,534 5,257 606 122 2 0 12 5,999
Wisconsin 2,368 2,248 337 4 25 4 4,986 13,093 407 24 0 0 24 13,548
Wyoming 1,191 115 9 0 4 0 1,319 2,370 63 3 0 0 0 2,436
U.S. Total 91,197 33,494 10,188 795 949 596 137,219 393,541 30,189 6,307 902 585 666 432,190
Puerto Rico 48 107 96 22 15 1 289 505 181 85 18 6 3 798
Grand Total 91,245 33,601 10,284 817 964 597 137,508 394,046 30,370 6,392 920 591 669 432,988

OCTOBER 1999
SHEET 3 of 4
TABLE HM-61

Urban

STATE VOLUME-SERVICE FLOW RATIO (V/SF)
INTERSTATE OTHER FREEWAYS AND EXPRESSWAYS OTHER PRINCIPAL ARTERIAL
< 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 57 142 27 44 33 303 1 0 10 4 2 3 20 131 441 289 45 53 38 997
Alaska 1 10 31 5 4 2 53 0 0 0 0 0 0 0 5 20 14 5 3 10 57
Arizona 34 63 42 17 7 11 174 10 39 18 6 13 14 100 121 293 370 122 57 65 1,028
Arkansas 0 42 69 6 7 23 147 18 40 33 11 1 10 113 61 242 171 35 41 30 580
California 20 38 264 113 250 384 1,069 32 181 437 170 289 288 1,397 377 1,340 2,524 633 454 516 5,844
Colorado 33 20 44 19 20 49 185 8 58 58 11 49 38 222 99 216 301 53 106 81 856
Connecticut 0 15 86 37 60 47 245 13 34 94 6 23 28 198 22 131 279 50 51 73 606
Delaware 0 0 27 3 3 8 41 0 7 2 2 0 0 11 8 43 64 10 8 1 134
Dist. of Columbia 0 1 3 1 5 2 12 0 2 3 3 8 2 18 0 14 37 19 11 14 95
Florida 3 50 208 71 67 110 509 0 78 215 16 30 30 369 227 775 1,142 239 198 101 2,682
Georgia 10 120 176 73 34 21 434 52 60 28 14 9 1 164 471 511 518 35 63 154 1,752
Hawaii 2 9 19 4 9 6 49 0 6 15 1 7 5 34 5 33 61 20 28 8 155
Idaho 5 32 29 6 7 7 86 0 0 0 0 0 0 0 47 84 73 13 19 21 257
Illinois 15 143 173 29 97 183 640 21 18 19 10 3 7 78 196 650 976 224 324 227 2,597
Indiana 4 130 138 14 7 27 320 32 62 24 5 0 11 134 107 394 537 133 224 148 1,543
Iowa 4 37 75 8 14 9 147 0 0 0 0 0 0 0 278 338 71 7 5 5 704
Kansas 20 41 80 16 9 8 174 35 42 45 3 6 3 134 143 291 152 24 18 21 649
Kentucky 1 15 109 19 33 50 227 27 30 18 3 10 5 93 33 168 210 40 77 124 652
Louisiana 19 48 92 13 37 25 234 5 5 15 4 2 3 34 102 215 204 53 67 172 813
Maine 6 23 18 1 3 1 52 2 10 5 1 0 0 18 12 61 65 9 11 16 174
Maryland 1 9 64 35 98 44 251 13 27 98 9 70 18 235 35 191 372 62 77 122 859
Massachusetts 1 62 152 44 73 72 404 9 62 81 13 34 7 206 62 363 497 153 218 262 1,555
Michigan 11 53 178 70 105 82 499 14 49 66 40 21 33 223 160 504 721 144 266 176 1,971
Minnesota 4 13 46 19 71 75 228 0 17 34 25 16 46 138 83 201 127 30 34 47 522
Mississippi 1 43 49 20 12 3 128 13 28 0 0 0 0 41 80 232 225 34 40 16 627
Missouri 4 55 120 38 103 52 372 55 86 116 21 26 15 319 131 412 375 22 52 54 1,046
Montana 29 28 0 0 0 0 57 0 0 0 0 0 0 0 39 59 58 3 10 5 174
Nebraska 2 11 21 0 9 1 44 0 6 8 0 3 0 17 90 126 124 24 24 29 417
Nevada 12 9 23 17 12 13 86 5 7 7 7 2 9 37 18 78 92 11 16 15 230
New Hampshire 0 4 23 7 3 11 48 0 7 25 1 2 5 40 8 38 82 6 33 6 173
New Jersey 0 7 121 16 68 90 302 19 30 123 31 35 73 311 34 143 464 59 132 477 1,309
New Mexico 25 46 13 4 5 15 108 3 0 0 0 0 0 3 201 159 76 26 24 31 517
New York 24 144 272 30 103 128 701 94 215 257 20 36 166 788 176 515 899 170 297 416 2,473
North Carolina 4 6 158 54 53 79 354 25 56 97 20 28 61 287 86 312 483 123 152 211 1,367
North Dakota 27 9 5 0 0 0 41 0 0 0 0 0 0 0 53 70 36 2 2 0 163
Ohio 3 37 241 81 188 191 741 40 162 113 17 30 16 378 210 662 624 153 187 130 1,966
Oklahoma 9 50 89 21 16 24 209 41 18 30 11 24 11 135 285 304 133 19 37 23 801
Oregon 12 16 36 14 35 29 142 0 3 23 3 10 13 52 85 252 252 34 18 22 663
Pennsylvania 12 89 282 27 60 79 549 56 187 143 37 39 19 481 126 572 857 240 170 286 2,251
Rhode Island 0 4 18 0 7 18 47 6 8 37 6 7 3 67 50 120 99 37 20 12 338
South Carolina 1 4 62 14 44 31 156 7 17 17 2 18 7 68 34 183 298 44 57 82 698
South Dakota 11 22 16 0 0 0 49 0 0 0 0 0 0 0 48 38 42 2 2 0 132
Tennessee 2 54 95 46 56 87 340 5 30 53 4 13 10 115 66 405 520 72 102 148 1,313
Texas 49 129 286 96 251 207 1,018 94 240 369 177 202 140 1,222 930 1,445 1,549 300 339 276 4,839
Utah 23 21 85 24 6 8 167 0 3 3 0 3 0 9 16 90 117 18 19 18 278
Vermont 6 17 17 0 0 0 40 2 10 5 0 1 1 19 2 17 47 5 20 7 98
Virginia 21 40 123 36 104 59 383 19 29 73 31 17 12 181 111 306 389 33 93 158 1,090
Washington 3 29 55 48 81 46 262 20 51 121 30 29 62 313 84 260 363 103 89 200 1,099
West Virginia 0 42 45 5 2 0 94 7 2 0 0 0 0 9 25 76 66 13 15 6 201
Wisconsin 2 44 44 14 22 36 162 7 50 61 30 20 6 174 175 397 420 106 73 149 1,320
Wyoming 65 22 0 0 0 0 87 3 0 0 0 0 0 3 104 58 35 3 4 0 204
U.S. Total 541 2,013 4,564 1,262 2,304 2,486 13,170 813 2,072 2,999 805 1,138 1,181 9,008 6,052 14,848 18,500 3,820 4,440 5,209 52,869
Puerto Rico 1 27 78 9 21 10 146 5 9 17 2 8 7 48 10 30 84 28 34 55 241
Grand Total 542 2,040 4,642 1,271 2,325 2,496 13,316 818 2,081 3,016 807 1,146 1,188 9,056 6,062 14,878 18,584 3,848 4,474 5,264 53,110

OCTOBER 1999
SHEET 4 OF 4
TABLE HM-61

Urban

STATE VOLUME SERVICE FLOW RATIO (V/SF)
MINOR ARTERIAL COLLECTOR
< 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 960 708 264 18 38 0 1,988 1,600 342 119 56 4 40 2,161
Alaska 63 60 52 4 11 12 202 150 49 20 5 0 4 228
Arizona 343 391 338 66 52 86 1,276 1,062 286 272 38 67 25 1,750
Arkansas 508 284 186 32 40 31 1,081 760 103 55 0 4 3 925
California 1,924 3,108 3,464 530 584 626 10,236 4,337 2,695 1,890 325 440 287 9,974
Colorado 445 432 349 74 97 31 1,428 671 414 187 20 9 18 1,319
Connecticut 310 518 414 84 86 71 1,483 604 373 137 20 44 12 1,190
Delaware 18 64 60 6 4 6 158 63 84 51 16 5 5 224
Dist. of Columbia 5 45 72 8 10 10 150 27 51 58 6 5 9 156
Florida 567 929 1,012 149 202 197 3,056 1,994 1,742 1,372 171 217 328 5,824
Georgia 982 1,043 721 56 63 103 2,968 747 558 497 26 64 230 2,122
Hawaii 8 33 39 6 7 15 108 81 64 89 22 34 49 339
Idaho 161 175 124 24 22 6 512 333 109 85 17 4 8 556
Illinois 631 903 1,116 260 384 512 3,806 1,482 748 724 189 138 494 3,775
Indiana 278 562 893 141 163 386 2,423 1,098 567 308 45 78 106 2,202
Iowa 449 493 280 33 86 22 1,363 496 289 130 13 17 1 946
Kansas 401 297 244 39 53 39 1,073 682 201 67 17 8 41 1,016
Kentucky 267 343 311 63 62 120 1,166 517 357 184 29 13 54 1,154
Louisiana 412 333 444 76 71 184 1,520 447 253 149 25 68 32 974
Maine 27 108 90 14 25 16 280 222 103 86 24 21 26 482
Maryland 182 280 487 99 63 85 1,196 584 299 210 46 63 119 1,321
Massachusetts 848 1,053 625 156 276 149 3,107 1,335 599 320 76 193 9 2,532
Michigan 654 845 1,024 166 252 456 3,397 1,280 636 460 39 74 52 2,541
Minnesota 462 737 521 93 106 219 2,138 797 432 224 8 43 31 1,535
Mississippi 170 225 200 38 21 18 672 456 379 115 18 4 9 981
Missouri 554 667 338 23 73 133 1,788 865 365 247 55 29 48 1,609
Montana 96 82 39 2 3 4 226 215 57 19 0 5 0 296
Nebraska 154 165 101 35 46 40 541 153 133 83 10 13 23 415
Nevada 119 184 139 25 24 32 523 413 137 97 21 54 12 734
New Hampshire 68 143 150 20 22 29 432 99 85 61 10 12 13 280
New Jersey 621 1,054 868 99 261 178 3,081 713 686 481 118 42 124 2,164
New Mexico 150 86 62 12 4 17 331 307 97 50 5 1 0 460
New York 644 1,637 1,576 414 350 375 4,996 937 1,051 1,203 137 128 584 4,040
North Carolina 433 674 729 115 185 195 2,331 948 325 245 36 50 75 1,679
North Dakota 114 84 53 8 3 5 267 147 53 21 1 2 1 225
Ohio 665 843 1,320 192 184 264 3,468 1,362 1,216 623 103 89 112 3,505
Oklahoma 1,213 412 200 50 38 7 1,920 824 138 19 1 1 0 983
Oregon 496 322 215 31 16 16 1,096 884 243 96 9 26 20 1,278
Pennsylvania 471 1,023 1,192 115 138 346 3,285 1,517 1,225 560 91 108 237 3,738
Rhode Island 58 156 117 7 11 6 355 379 119 32 0 0 0 530
South Carolina 118 291 301 81 120 82 993 694 381 220 23 71 71 1,460
South Dakota 138 80 47 5 3 0 273 138 26 24 5 1 5 199
Tennessee 349 599 811 78 82 196 2,115 699 482 297 71 37 70 1,656
Texas 1,688 2,182 1,719 402 620 306 6,917 4,392 2,084 1,589 308 340 89 8,802
Utah 87 197 150 26 27 23 510 258 125 118 31 8 9 549
Vermont 21 77 32 1 17 2 150 105 61 34 13 0 1 214
Virginia 976 334 374 57 78 127 1,946 1,480 199 100 26 37 22 1,864
Washington 624 605 535 144 70 162 2,140 964 551 319 45 76 82 2,037
West Virginia 78 125 107 28 41 38 417 332 64 34 4 8 6 448
Wisconsin 434 737 458 127 103 138 1,997 855 438 160 11 24 12 1,500
Wyoming 76 55 20 0 1 2 154 369 67 33 1 10 4 484
U.S. Total 21,520 26,783 24,983 4,332 5,298 6,123 89,039 41,874 22,141 14,574 2,386 2,789 3,612 87,376
Puerto Rico 69 118 157 31 69 65 509 239 163 133 7 15 46 603
Grand Total 21,589 26,901 25,140 4,363 5,367 6,188 89,548 42,113 22,304 14,707 2,393 2,804 3,658 87,979

1/ In 1995, updated capacity (service flow) calculation procedures were instituted in the HPMS data reporting process. The procedures are based on the Highway Capacity Manual, Third Edition, 1994, published by the Transportation Research Board. Some differences from other tables may be noted because these values are estimated from sample data and do not include structures.