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NOTE: These data are as provided by the States to the Highway Performance Monitoring System. If no data are shown for a State, it is because none were provided. Reporting of motorcycles is at the option of the reporting State. States are allowed to report light trucks and cars as a single value in the "Cars" category.
| Year | St. Fips | State Name | Highway Class Code | Highway Class Name |
Passenger Cars
|
Motor-cycles
|
Buses
|
Light Truck - other 2-AXLE 4-Tire Vehicles
|
Single-unit 2-Axle 6-Tire: Or More Trucks
|
Combination Trucks
|
|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | 1 | Alabama | 1 | Rural Interstate | 62.00% | 0.27% | 0.44% | 17.54% | 3.36% | 16.39% |
| 2001 | 2 | Alaska | 1 | Rural Interstate | 58.60% | 0.60% | 0.60% | 27.80% | 12.20% | 0.20% |
| 2001 | 4 | Arizona | 1 | Rural Interstate | 50.80% | 0.30% | 0.70% | 16.80% | 2.30% | 29.10% |
| 2001 | 5 | Arkansas | 1 | Rural Interstate | 45.20% | 0.10% | 0.30% | 15.70% | 6.60% | 32.10% |
| 2001 | 6 | California | 1 | Rural Interstate | 70.30% | 0.00% | 0.20% | 13.00% | 3.10% | 13.40% |
| 2001 | 8 | Colorado | 1 | Rural Interstate | 38.50% | 0.70% | 0.50% | 44.10% | 2.80% | 13.40% |
| 2001 | 9 | Connecticut | 1 | Rural Interstate | 72.95% | 0.47% | 0.87% | 9.97% | 3.29% | 12.45% |
| 2001 | 10 | Delaware | 1 | Rural Interstate | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2001 | 11 | District of Columbia | 1 | Rural Interstate | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2001 | 12 | Florida | 1 | Rural Interstate | 66.90% | 0.30% | 0.80% | 15.00% | 5.30% | 11.70% |
| 2001 | 13 | Georgia | 1 | Rural Interstate | 49.00% | 0.70% | 0.90% | 21.10% | 4.30% | 24.00% |
| 2001 | 15 | Hawaii | 1 | Rural Interstate | 79.59% | 0.00% | 0.21% | 15.54% | 3.05% | 1.61% |
| 2001 | 16 | Idaho | 1 | Rural Interstate | ||||||
| 2001 | 17 | Illinois | 1 | Rural Interstate | 67.60% | 0.00% | 1.00% | 0.00% | 3.60% | 27.80% |
| 2001 | 18 | Indiana | 1 | Rural Interstate | ||||||
| 2001 | 19 | Iowa | 1 | Rural Interstate | 59.50% | 0.50% | 0.40% | 0.00% | 4.30% | 35.30% |
| 2001 | 20 | Kansas | 1 | Rural Interstate | 52.30% | 0.40% | 0.70% | 18.20% | 3.50% | 24.90% |
| 2001 | 21 | Kentucky | 1 | Rural Interstate | 48.00% | 0.20% | 0.60% | 21.00% | 4.10% | 26.10% |
| 2001 | 22 | Louisiana | 1 | Rural Interstate | 56.80% | 0.20% | 0.40% | 20.00% | 6.00% | 16.70% |
| 2001 | 23 | Maine | 1 | Rural Interstate | 71.60% | 0.50% | 0.40% | 16.50% | 3.20% | 7.80% |
| 2001 | 24 | Maryland | 1 | Rural Interstate | 67.00% | 0.20% | 1.40% | 13.10% | 4.60% | 13.70% |
| 2001 | 25 | Massachusetts | 1 | Rural Interstate | 68.90% | 0.00% | 1.20% | 9.40% | 3.30% | 17.20% |
| 2001 | 26 | Michigan | 1 | Rural Interstate | 66.00% | 0.10% | 0.30% | 16.00% | 4.60% | 13.00% |
| 2001 | 27 | Minnesota | 1 | Rural Interstate | 85.90% | 0.00% | 0.20% | 0.00% | 2.40% | 11.50% |
| 2001 | 28 | Mississippi | 1 | Rural Interstate | 53.80% | 0.30% | 0.60% | 17.60% | 6.60% | 21.10% |
| 2001 | 29 | Missouri | 1 | Rural Interstate | 68.00% | 0.00% | 0.70% | 0.00% | 3.70% | 27.60% |
| 2001 | 30 | Montana | 1 | Rural Interstate | 51.40% | 1.00% | 0.60% | 26.20% | 3.00% | 17.80% |
| 2001 | 31 | Nebraska | 1 | Rural Interstate | 41.70% | 0.17% | 0.18% | 25.28% | 2.63% | 30.03% |
| 2001 | 32 | Nevada | 1 | Rural Interstate | 69.10% | 0.00% | 0.60% | 0.00% | 3.80% | 26.50% |
| 2001 | 33 | New Hampshire | 1 | Rural Interstate | 52.10% | 0.70% | 0.30% | 36.40% | 4.20% | 6.30% |
| 2001 | 34 | New Jersey | 1 | Rural Interstate | 73.50% | 0.10% | 0.40% | 13.00% | 3.40% | 9.60% |
| 2001 | 35 | New Mexico | 1 | Rural Interstate | 54.00% | 1.10% | 1.50% | 16.70% | 6.90% | 19.80% |
| 2001 | 36 | New York | 1 | Rural Interstate | 57.30% | 0.70% | 1.20% | 19.80% | 4.50% | 16.50% |
| 2001 | 37 | North Carolina | 1 | Rural Interstate | 56.80% | 0.50% | 1.10% | 10.80% | 5.20% | 25.60% |
| 2001 | 38 | North Dakota | 1 | Rural Interstate | 54.20% | 0.80% | 0.70% | 22.60% | 5.70% | 16.00% |
| 2001 | 39 | Ohio | 1 | Rural Interstate | 54.80% | 0.30% | 0.30% | 14.80% | 2.10% | 27.70% |
| 2001 | 40 | Oklahoma | 1 | Rural Interstate | 49.22% | 0.78% | 0.97% | 19.45% | 6.54% | 23.04% |
| 2001 | 41 | Oregon | 1 | Rural Interstate | 48.22% | 0.26% | 0.33% | 23.89% | 4.53% | 22.77% |
| 2001 | 42 | Pennsylvania | 1 | Rural Interstate | 59.70% | 0.00% | 0.00% | 12.00% | 4.50% | 23.80% |
| 2001 | 44 | Rhode Island | 1 | Rural Interstate | 80.00% | 0.40% | 0.70% | 7.00% | 2.00% | 9.90% |
| 2001 | 45 | South Carolina | 1 | Rural Interstate | 73.40% | 3.70% | 0.70% | 6.70% | 2.60% | 12.90% |
| 2001 | 46 | South Dakota | 1 | Rural Interstate | 61.00% | 0.00% | 0.10% | 21.20% | 2.70% | 15.00% |
| 2001 | 47 | Tennessee | 1 | Rural Interstate | 46.40% | 0.30% | 0.60% | 10.60% | 4.40% | 37.70% |
| 2001 | 48 | Texas | 1 | Rural Interstate | 53.19% | 0.00% | 0.44% | 18.18% | 5.26% | 22.92% |
| 2001 | 49 | Utah | 1 | Rural Interstate | 56.40% | 0.00% | 0.20% | 19.80% | 3.70% | 19.90% |
| 2001 | 50 | Vermont | 1 | Rural Interstate | 63.50% | 1.00% | 1.20% | 17.00% | 4.00% | 13.30% |
| 2001 | 51 | Virginia | 1 | Rural Interstate | 65.54% | 0.14% | 0.75% | 11.14% | 2.61% | 19.82% |
| 2001 | 53 | Washington | 1 | Rural Interstate | 54.30% | 0.30% | 0.20% | 26.70% | 5.10% | 13.40% |
| 2001 | 54 | West Virginia | 1 | Rural Interstate | 70.80% | 0.10% | 0.20% | 9.90% | 18.90% | 0.10% |
| 2001 | 55 | Wisconsin | 1 | Rural Interstate | 65.30% | 0.30% | 0.70% | 11.90% | 2.50% | 19.30% |
| 2001 | 56 | Wyoming | 1 | Rural Interstate | 38.50% | 0.20% | 0.40% | 26.40% | 2.00% | 32.50% |
| 2001 | 1 | Alabama | 2 | Rural Other Arterial | 68.65% | 0.57% | 0.61% | 16.55% | 4.89% | 8.74% |
| 2001 | 2 | Alaska | 2 | Rural Other Arterial | 58.00% | 0.40% | 0.90% | 29.60% | 11.10% | 0.00% |
| 2001 | 4 | Arizona | 2 | Rural Other Arterial | 63.10% | 0.60% | 0.60% | 25.70% | 2.40% | 7.60% |
| 2001 | 5 | Arkansas | 2 | Rural Other Arterial | 53.50% | 0.00% | 0.10% | 33.80% | 4.90% | 7.70% |
| 2001 | 6 | California | 2 | Rural Other Arterial | 71.70% | 0.50% | 0.70% | 14.80% | 3.80% | 8.50% |
| 2001 | 8 | Colorado | 2 | Rural Other Arterial | 40.40% | 0.60% | 0.20% | 46.10% | 3.60% | 9.10% |
| 2001 | 9 | Connecticut | 2 | Rural Other Arterial | 80.74% | 0.18% | 0.49% | 13.58% | 2.51% | 2.50% |
| 2001 | 10 | Delaware | 2 | Rural Other Arterial | 71.00% | 0.30% | 1.15% | 14.10% | 12.80% | 0.65% |
| 2001 | 11 | District of Columbia | 2 | Rural Other Arterial | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2001 | 12 | Florida | 2 | Rural Other Arterial | 67.70% | 0.40% | 0.60% | 19.50% | 5.50% | 6.30% |
| 2001 | 13 | Georgia | 2 | Rural Other Arterial | 72.90% | 0.30% | 0.50% | 16.20% | 3.60% | 6.50% |
| 2001 | 15 | Hawaii | 2 | Rural Other Arterial | 81.92% | 0.86% | 0.55% | 13.04% | 2.33% | 1.31% |
| 2001 | 16 | Idaho | 2 | Rural Other Arterial | ||||||
| 2001 | 17 | Illinois | 2 | Rural Other Arterial | 87.40% | 0.00% | 0.70% | 0.00% | 4.90% | 7.00% |
| 2001 | 18 | Indiana | 2 | Rural Other Arterial | ||||||
| 2001 | 19 | Iowa | 2 | Rural Other Arterial | 81.10% | 0.90% | 0.40% | 0.00% | 5.50% | 12.10% |
| 2001 | 20 | Kansas | 2 | Rural Other Arterial | 60.00% | 0.30% | 0.40% | 24.20% | 3.80% | 11.30% |
| 2001 | 21 | Kentucky | 2 | Rural Other Arterial | 60.20% | 0.30% | 0.50% | 26.00% | 5.30% | 7.70% |
| 2001 | 22 | Louisiana | 2 | Rural Other Arterial | 54.20% | 0.20% | 0.60% | 26.90% | 7.60% | 10.40% |
| 2001 | 23 | Maine | 2 | Rural Other Arterial | 71.80% | 0.60% | 0.50% | 20.00% | 3.10% | 4.00% |
| 2001 | 24 | Maryland | 2 | Rural Other Arterial | 76.70% | 1.00% | 0.50% | 15.60% | 3.50% | 2.70% |
| 2001 | 25 | Massachusetts | 2 | Rural Other Arterial | 74.70% | 0.00% | 1.00% | 19.60% | 3.40% | 1.30% |
| 2001 | 26 | Michigan | 2 | Rural Other Arterial | 65.90% | 0.20% | 0.20% | 24.60% | 3.20% | 5.90% |
| 2001 | 27 | Minnesota | 2 | Rural Other Arterial | 90.30% | 0.00% | 0.20% | 0.00% | 3.60% | 5.90% |
| 2001 | 28 | Mississippi | 2 | Rural Other Arterial | 60.50% | 0.30% | 0.50% | 21.10% | 6.10% | 11.50% |
| 2001 | 29 | Missouri | 2 | Rural Other Arterial | 85.70% | 0.00% | 0.50% | 0.00% | 3.80% | 10.00% |
| 2001 | 30 | Montana | 2 | Rural Other Arterial | 52.40% | 0.40% | 0.40% | 35.20% | 3.70% | 7.90% |
| 2001 | 31 | Nebraska | 2 | Rural Other Arterial | 46.81% | 0.23% | 0.19% | 38.09% | 3.90% | 10.78% |
| 2001 | 32 | Nevada | 2 | Rural Other Arterial | 80.20% | 0.00% | 0.50% | 0.00% | 4.80% | 14.50% |
| 2001 | 33 | New Hampshire | 2 | Rural Other Arterial | 70.80% | 1.40% | 1.70% | 18.90% | 3.60% | 3.60% |
| 2001 | 34 | New Jersey | 2 | Rural Other Arterial | 73.80% | 0.10% | 0.50% | 18.80% | 4.10% | 2.70% |
| 2001 | 35 | New Mexico | 2 | Rural Other Arterial | 55.60% | 0.90% | 0.90% | 25.40% | 6.90% | 10.30% |
| 2001 | 36 | New York | 2 | Rural Other Arterial | 70.80% | 0.30% | 1.00% | 18.90% | 4.40% | 4.60% |
| 2001 | 37 | North Carolina | 2 | Rural Other Arterial | 69.90% | 0.40% | 0.70% | 16.40% | 4.90% | 7.70% |
| 2001 | 38 | North Dakota | 2 | Rural Other Arterial | 51.40% | 0.50% | 0.60% | 27.50% | 7.50% | 12.50% |
| 2001 | 39 | Ohio | 2 | Rural Other Arterial | 66.90% | 0.40% | 0.10% | 17.90% | 2.40% | 12.30% |
| 2001 | 40 | Oklahoma | 2 | Rural Other Arterial | 54.67% | 0.55% | 0.63% | 25.61% | 6.21% | 12.33% |
| 2001 | 41 | Oregon | 2 | Rural Other Arterial | 48.97% | 0.61% | 0.34% | 36.79% | 4.59% | 8.70% |
| 2001 | 42 | Pennsylvania | 2 | Rural Other Arterial | 67.74% | 0.00% | 0.00% | 22.40% | 5.40% | 4.50% |
| 2001 | 44 | Rhode Island | 2 | Rural Other Arterial | 80.30% | 0.40% | 0.50% | 14.90% | 2.20% | 1.70% |
| 2001 | 45 | South Carolina | 2 | Rural Other Arterial | 71.20% | 3.30% | 0.50% | 15.70% | 4.90% | 4.40% |
| 2001 | 46 | South Dakota | 2 | Rural Other Arterial | 57.90% | 0.00% | 0.10% | 27.60% | 3.20% | 11.20% |
| 2001 | 47 | Tennessee | 2 | Rural Other Arterial | 73.30% | 0.70% | 0.10% | 18.60% | 2.50% | 4.80% |
| 2001 | 48 | Texas | 2 | Rural Other Arterial | 55.78% | 0.00% | 0.39% | 26.38% | 6.74% | 10.72% |
| 2001 | 49 | Utah | 2 | Rural Other Arterial | 68.20% | 0.00% | 0.50% | 20.20% | 3.80% | 7.30% |
| 2001 | 50 | Vermont | 2 | Rural Other Arterial | 72.50% | 0.80% | 0.80% | 18.30% | 3.80% | 3.80% |
| 2001 | 51 | Virginia | 2 | Rural Other Arterial | 74.68% | 0.25% | 0.62% | 14.97% | 3.38% | 6.10% |
| 2001 | 53 | Washington | 2 | Rural Other Arterial | 55.50% | 0.30% | 0.30% | 31.70% | 6.40% | 5.80% |
| 2001 | 54 | West Virginia | 2 | Rural Other Arterial | 72.20% | 0.30% | 0.30% | 14.80% | 12.20% | 0.20% |
| 2001 | 55 | Wisconsin | 2 | Rural Other Arterial | 67.50% | 0.70% | 0.60% | 19.50% | 3.60% | 8.10% |
| 2001 | 56 | Wyoming | 2 | Rural Other Arterial | 47.00% | 0.30% | 0.40% | 40.30% | 2.50% | 9.50% |
| 2001 | 1 | Alabama | 6 | Other Rural | 75.53% | 0.33% | 0.39% | 16.12% | 3.11% | 4.53% |
| 2001 | 2 | Alaska | 6 | Other Rural | 62.90% | 0.70% | 0.50% | 28.10% | 7.80% | 0.00% |
| 2001 | 4 | Arizona | 6 | Other Rural | 62.40% | 1.40% | 0.40% | 24.70% | 2.60% | 8.50% |
| 2001 | 5 | Arkansas | 6 | Other Rural | 61.50% | 0.30% | 0.20% | 28.70% | 3.90% | 5.40% |
| 2001 | 6 | California | 6 | Other Rural | 70.90% | 0.40% | 0.90% | 23.00% | 2.50% | 2.30% |
| 2001 | 8 | Colorado | 6 | Other Rural | 41.10% | 0.50% | 0.20% | 47.00% | 4.00% | 7.20% |
| 2001 | 9 | Connecticut | 6 | Other Rural | 82.15% | 0.36% | 0.02% | 14.69% | 1.77% | 1.01% |
| 2001 | 10 | Delaware | 6 | Other Rural | 76.93% | 0.23% | 1.40% | 15.43% | 6.00% | 0.00% |
| 2001 | 11 | District of Columbia | 6 | Other Rural | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
| 2001 | 12 | Florida | 6 | Other Rural | 69.70% | 1.10% | 0.70% | 19.60% | 4.80% | 4.10% |
| 2001 | 13 | Georgia | 6 | Other Rural | 75.00% | 0.20% | 0.40% | 17.80% | 4.10% | 2.50% |
| 2001 | 15 | Hawaii | 6 | Other Rural | 67.97% | 1.41% | 0.33% | 23.82% | 5.24% | 1.23% |
| 2001 | 16 | Idaho | 6 | Other Rural | ||||||
| 2001 | 17 | Illinois | 6 | Other Rural | 91.80% | 0.00% | 1.00% | 0.00% | 5.00% | 2.20% |
| 2001 | 18 | Indiana | 6 | Other Rural | ||||||
| 2001 | 19 | Iowa | 6 | Other Rural | 88.00% | 1.00% | 0.40% | 0.00% | 5.20% | 5.40% |
| 2001 | 20 | Kansas | 6 | Other Rural | 59.10% | 0.40% | 0.30% | 29.40% | 4.40% | 6.40% |
| 2001 | 21 | Kentucky | 6 | Other Rural | 64.20% | 0.40% | 0.70% | 26.30% | 4.80% | 3.60% |
| 2001 | 22 | Louisiana | 6 | Other Rural | 57.70% | 0.30% | 0.90% | 28.20% | 6.90% | 5.90% |
| 2001 | 23 | Maine | 6 | Other Rural | 74.00% | 0.60% | 0.50% | 19.50% | 3.70% | 1.70% |
| 2001 | 24 | Maryland | 6 | Other Rural | 69.80% | 0.70% | 0.80% | 20.30% | 5.90% | 2.50% |
| 2001 | 25 | Massachusetts | 6 | Other Rural | 73.10% | 0.00% | 1.00% | 18.00% | 5.60% | 2.30% |
| 2001 | 26 | Michigan | 6 | Other Rural | 67.00% | 0.30% | 1.50% | 27.00% | 1.80% | 2.40% |
| 2001 | 27 | Minnesota | 6 | Other Rural | 91.60% | 0.00% | 0.20% | 0.00% | 4.20% | 4.00% |
| 2001 | 28 | Mississippi | 6 | Other Rural | 68.70% | 0.20% | 0.40% | 21.00% | 5.00% | 4.70% |
| 2001 | 29 | Missouri | 6 | Other Rural | 89.20% | 0.00% | 0.60% | 0.00% | 4.00% | 6.20% |
| 2001 | 30 | Montana | 6 | Other Rural | 45.60% | 0.20% | 0.70% | 45.10% | 4.50% | 3.90% |
| 2001 | 31 | Nebraska | 6 | Other Rural | 40.90% | 0.22% | 0.27% | 45.74% | 6.40% | 6.47% |
| 2001 | 32 | Nevada | 6 | Other Rural | 86.70% | 0.00% | 0.40% | 0.00% | 3.60% | 9.30% |
| 2001 | 33 | New Hampshire | 6 | Other Rural | 68.60% | 1.30% | 1.20% | 22.50% | 4.20% | 2.20% |
| 2001 | 34 | New Jersey | 6 | Other Rural | 78.10% | 0.30% | 0.60% | 14.90% | 4.40% | 1.70% |
| 2001 | 35 | New Mexico | 6 | Other Rural | 57.30% | 1.10% | 1.40% | 28.10% | 7.20% | 4.90% |
| 2001 | 36 | New York | 6 | Other Rural | 72.20% | 0.30% | 0.60% | 20.00% | 4.70% | 2.20% |
| 2001 | 37 | North Carolina | 6 | Other Rural | 73.50% | 0.40% | 0.60% | 17.10% | 4.70% | 3.70% |
| 2001 | 38 | North Dakota | 6 | Other Rural | 54.30% | 0.30% | 0.40% | 25.40% | 7.00% | 12.60% |
| 2001 | 39 | Ohio | 6 | Other Rural | 70.10% | 0.50% | 0.10% | 20.60% | 2.40% | 6.30% |
| 2001 | 40 | Oklahoma | 6 | Other Rural | 56.38% | 0.32% | 0.49% | 30.63% | 6.09% | 6.10% |
| 2001 | 41 | Oregon | 6 | Other Rural | 54.59% | 0.59% | 0.43% | 37.89% | 3.85% | 2.64% |
| 2001 | 42 | Pennsylvania | 6 | Other Rural | 63.00% | 0.00% | 0.00% | 28.90% | 6.80% | 1.30% |
| 2001 | 44 | Rhode Island | 6 | Other Rural | 79.30% | 0.30% | 0.60% | 16.10% | 2.80% | 0.90% |
| 2001 | 45 | South Carolina | 6 | Other Rural | 75.20% | 0.50% | 0.30% | 14.50% | 4.10% | 5.40% |
| 2001 | 46 | South Dakota | 6 | Other Rural | 52.50% | 0.00% | 0.00% | 36.90% | 3.50% | 7.10% |
| 2001 | 47 | Tennessee | 6 | Other Rural | 76.70% | 0.30% | 0.00% | 20.00% | 1.70% | 1.30% |
| 2001 | 48 | Texas | 6 | Other Rural | 55.20% | 0.00% | 0.57% | 30.22% | 7.31% | 6.70% |
| 2001 | 49 | Utah | 6 | Other Rural | 69.50% | 0.00% | 0.20% | 21.50% | 4.90% | 3.90% |
| 2001 | 50 | Vermont | 6 | Other Rural | 73.60% | 0.60% | 0.60% | 20.40% | 3.60% | 1.20% |
| 2001 | 51 | Virginia | 6 | Other Rural | 76.28% | 0.45% | 0.65% | 16.91% | 3.71% | 2.01% |
| 2001 | 53 | Washington | 6 | Other Rural | 59.10% | 0.50% | 0.20% | 29.60% | 6.40% | 4.20% |
| 2001 | 54 | West Virginia | 6 | Other Rural | 75.80% | 0.40% | 1.00% | 17.80% | 4.90% | 0.10% |
| 2001 | 55 | Wisconsin | 6 | Other Rural | 69.10% | 1.30% | 0.20% | 22.00% | 3.90% | 3.50% |
| 2001 | 56 | Wyoming | 6 | Other Rural | 41.50% | 0.30% | 0.40% | 43.70% | 3.20% | 10.90% |
| 2001 | 1 | Alabama | 11 | Urban Interstate | 63.78% | 0.17% | 0.18% | 25.65% | 3.07% | 7.15% |
| 2001 | 2 | Alaska | 11 | Urban Interstate | 75.10% | 0.70% | 0.50% | 18.00% | 5.61% | 0.10% |
| 2001 | 4 | Arizona | 11 | Urban Interstate | 63.70% | 0.40% | 0.70% | 16.40% | 1.70% | 17.10% |
| 2001 | 5 | Arkansas | 11 | Urban Interstate | 54.20% | 0.00% | 0.20% | 25.30% | 5.70% | 14.60% |
| 2001 | 6 | California | 11 | Urban Interstate | 86.10% | 0.00% | 0.10% | 9.20% | 1.90% | 2.70% |
| 2001 | 8 | Colorado | 11 | Urban Interstate | 44.10% | 0.30% | 0.30% | 46.10% | 4.30% | 4.90% |
| 2001 | 9 | Connecticut | 11 | Urban Interstate | 78.80% | 0.04% | 0.27% | 11.12% | 2.69% | 7.08% |
| 2001 | 10 | Delaware | 11 | Urban Interstate | 79.70% | 0.70% | 1.10% | 9.70% | 8.60% | 0.20% |
| 2001 | 11 | District of Columbia | 11 | Urban Interstate | 95.10% | 0.30% | 0.40% | 0.90% | 2.70% | 0.60% |
| 2001 | 12 | Florida | 11 | Urban Interstate | 74.30% | 0.40% | 1.00% | 14.80% | 3.60% | 5.90% |
| 2001 | 13 | Georgia | 11 | Urban Interstate | 63.30% | 0.20% | 0.30% | 25.40% | 3.20% | 7.60% |
| 2001 | 15 | Hawaii | 11 | Urban Interstate | 85.72% | 0.57% | 0.47% | 9.95% | 2.34% | 0.95% |
| 2001 | 16 | Idaho | 11 | Urban Interstate | ||||||
| 2001 | 17 | Illinois | 11 | Urban Interstate | 87.00% | 0.00% | 0.70% | 0.00% | 2.20% | 10.10% |
| 2001 | 18 | Indiana | 11 | Urban Interstate | ||||||
| 2001 | 19 | Iowa | 11 | Urban Interstate | 84.00% | 0.70% | 0.20% | 0.00% | 2.80% | 12.30% |
| 2001 | 20 | Kansas | 11 | Urban Interstate | 67.60% | 0.40% | 0.30% | 22.40% | 3.20% | 6.10% |
| 2001 | 21 | Kentucky | 11 | Urban Interstate | 64.10% | 0.40% | 0.70% | 15.80% | 3.70% | 15.30% |
| 2001 | 22 | Louisiana | 11 | Urban Interstate | 61.90% | 0.10% | 0.50% | 19.00% | 6.00% | 12.40% |
| 2001 | 23 | Maine | 11 | Urban Interstate | 73.90% | 0.50% | 0.40% | 17.00% | 3.10% | 5.10% |
| 2001 | 24 | Maryland | 11 | Urban Interstate | 84.50% | 0.60% | 0.50% | 8.30% | 2.30% | 3.80% |
| 2001 | 25 | Massachusetts | 11 | Urban Interstate | 80.20% | 0.00% | 0.80% | 11.70% | 3.90% | 3.40% |
| 2001 | 26 | Michigan | 11 | Urban Interstate | 72.50% | 0.10% | 0.20% | 16.00% | 4.90% | 6.30% |
| 2001 | 27 | Minnesota | 11 | Urban Interstate | 94.30% | 0.00% | 0.30% | 0.00% | 2.10% | 3.30% |
| 2001 | 28 | Mississippi | 11 | Urban Interstate | 64.90% | 0.20% | 0.40% | 18.30% | 5.30% | 10.90% |
| 2001 | 29 | Missouri | 11 | Urban Interstate | 89.00% | 0.00% | 0.60% | 0.00% | 4.70% | 5.70% |
| 2001 | 30 | Montana | 11 | Urban Interstate | 55.10% | 0.20% | 0.30% | 31.20% | 2.40% | 10.80% |
| 2001 | 31 | Nebraska | 11 | Urban Interstate | 55.94% | 0.20% | 0.12% | 33.38% | 2.81% | 7.55% |
| 2001 | 32 | Nevada | 11 | Urban Interstate | 89.80% | 0.00% | 0.50% | 0.00% | 2.60% | 7.10% |
| 2001 | 33 | New Hampshire | 11 | Urban Interstate | 49.30% | 0.50% | 0.30% | 40.10% | 4.50% | 5.30% |
| 2001 | 34 | New Jersey | 11 | Urban Interstate | 75.70% | 0.20% | 0.90% | 10.20% | 4.70% | 8.30% |
| 2001 | 35 | New Mexico | 11 | Urban Interstate | 68.50% | 1.00% | 0.70% | 16.40% | 4.70% | 8.70% |
| 2001 | 36 | New York | 11 | Urban Interstate | 85.20% | 0.20% | 0.50% | 4.10% | 5.40% | 4.60% |
| 2001 | 37 | North Carolina | 11 | Urban Interstate | 68.60% | 0.40% | 0.90% | 12.90% | 4.20% | 13.00% |
| 2001 | 38 | North Dakota | 11 | Urban Interstate | 61.60% | 0.70% | 0.30% | 23.60% | 4.40% | 9.40% |
| 2001 | 39 | Ohio | 11 | Urban Interstate | 71.40% | 0.30% | 0.20% | 14.60% | 1.80% | 11.70% |
| 2001 | 40 | Oklahoma | 11 | Urban Interstate | 64.49% | 0.15% | 0.54% | 21.25% | 6.13% | 7.45% |
| 2001 | 41 | Oregon | 11 | Urban Interstate | 64.63% | 0.30% | 0.46% | 20.79% | 4.82% | 9.00% |
| 2001 | 42 | Pennsylvania | 11 | Urban Interstate | 73.40% | 0.00% | 0.00% | 12.00% | 4.40% | 10.20% |
| 2001 | 44 | Rhode Island | 11 | Urban Interstate | 86.40% | 0.30% | 0.40% | 7.90% | 1.60% | 3.40% |
| 2001 | 45 | South Carolina | 11 | Urban Interstate | 85.70% | 2.20% | 0.30% | 5.60% | 1.60% | 4.60% |
| 2001 | 46 | South Dakota | 11 | Urban Interstate | 66.80% | 0.00% | 0.10% | 20.80% | 1.90% | 10.40% |
| 2001 | 47 | Tennessee | 11 | Urban Interstate | 64.30% | 0.20% | 0.10% | 12.80% | 2.80% | 19.80% |
| 2001 | 48 | Texas | 11 | Urban Interstate | 70.64% | 0.00% | 0.28% | 18.36% | 4.08% | 6.63% |
| 2001 | 49 | Utah | 11 | Urban Interstate | 71.70% | 0.00% | 0.20% | 18.00% | 3.40% | 6.70% |
| 2001 | 50 | Vermont | 11 | Urban Interstate | 71.80% | 0.80% | 0.80% | 16.20% | 3.30% | 7.10% |
| 2001 | 51 | Virginia | 11 | Urban Interstate | 78.07% | 0.10% | 0.55% | 11.87% | 2.36% | 7.05% |
| 2001 | 53 | Washington | 11 | Urban Interstate | 67.60% | 0.30% | 0.20% | 24.70% | 3.70% | 3.50% |
| 2001 | 54 | West Virginia | 11 | Urban Interstate | 69.50% | 0.10% | 0.20% | 9.80% | 20.20% | 0.20% |
| 2001 | 55 | Wisconsin | 11 | Urban Interstate | 71.30% | 0.20% | 1.00% | 13.60% | 3.10% | 10.80% |
| 2001 | 56 | Wyoming | 11 | Urban Interstate | 34.50% | 0.20% | 0.40% | 24.60% | 2.00% | 38.30% |
| 2001 | 1 | Alabama | 12 | Urban Other Arterial | 74.93% | 0.36% | 0.17% | 16.89% | 2.91% | 4.73% |
| 2001 | 2 | Alaska | 12 | Urban Other Arterial | 73.90% | 0.20% | 0.50% | 21.40% | 4.00% | 0.00% |
| 2001 | 4 | Arizona | 12 | Urban Other Arterial | 66.50% | 0.80% | 0.50% | 24.80% | 2.80% | 4.60% |
| 2001 | 5 | Arkansas | 12 | Urban Other Arterial | 67.20% | 0.20% | 0.30% | 23.60% | 3.70% | 5.00% |
| 2001 | 6 | California | 12 | Urban Other Arterial | 84.90% | 0.10% | 0.10% | 9.50% | 2.30% | 3.10% |
| 2001 | 8 | Colorado | 12 | Urban Other Arterial | 45.10% | 0.50% | 0.30% | 48.30% | 3.60% | 2.20% |
| 2001 | 9 | Connecticut | 12 | Urban Other Arterial | 83.65% | 0.13% | 0.08% | 12.39% | 2.08% | 1.67% |
| 2001 | 10 | Delaware | 12 | Urban Other Arterial | 75.90% | 0.40% | 0.55% | 15.15% | 8.00% | 0.00% |
| 2001 | 11 | District of Columbia | 12 | Urban Other Arterial | 94.00% | 0.40% | 0.80% | 1.00% | 3.60% | 0.20% |
| 2001 | 12 | Florida | 12 | Urban Other Arterial | 78.80% | 0.50% | 0.50% | 14.80% | 3.30% | 2.10% |
| 2001 | 13 | Georgia | 12 | Urban Other Arterial | 73.60% | 0.30% | 0.40% | 20.50% | 2.90% | 2.30% |
| 2001 | 15 | Hawaii | 12 | Urban Other Arterial | 87.06% | 0.57% | 0.50% | 8.94% | 1.62% | 1.29% |
| 2001 | 16 | Idaho | 12 | Urban Other Arterial | ||||||
| 2001 | 17 | Illinois | 12 | Urban Other Arterial | 92.20% | 0.00% | 1.00% | 0.00% | 3.50% | 3.30% |
| 2001 | 18 | Indiana | 12 | Urban Other Arterial | ||||||
| 2001 | 19 | Iowa | 12 | Urban Other Arterial | 89.50% | 0.70% | 0.40% | 0.00% | 4.30% | 5.10% |
| 2001 | 20 | Kansas | 12 | Urban Other Arterial | 71.50% | 0.30% | 0.30% | 23.40% | 2.50% | 2.00% |
| 2001 | 21 | Kentucky | 12 | Urban Other Arterial | 62.30% | 0.20% | 0.40% | 30.20% | 3.60% | 3.30% |
| 2001 | 22 | Louisiana | 12 | Urban Other Arterial | 62.60% | 0.40% | 0.90% | 27.00% | 5.50% | 3.60% |
| 2001 | 23 | Maine | 12 | Urban Other Arterial | 75.30% | 0.40% | 0.30% | 19.50% | 2.10% | 2.40% |
| 2001 | 24 | Maryland | 12 | Urban Other Arterial | 83.60% | 0.20% | 0.50% | 11.40% | 2.70% | 1.60% |
| 2001 | 25 | Massachusetts | 12 | Urban Other Arterial | 83.20% | 0.00% | 0.60% | 12.70% | 2.50% | 1.00% |
| 2001 | 26 | Michigan | 12 | Urban Other Arterial | 73.00% | 0.10% | 0.20% | 22.00% | 1.70% | 3.00% |
| 2001 | 27 | Minnesota | 12 | Urban Other Arterial | 95.50% | 0.00% | 0.20% | 0.00% | 2.30% | 2.00% |
| 2001 | 28 | Mississippi | 12 | Urban Other Arterial | 69.40% | 0.30% | 0.30% | 18.00% | 4.70% | 7.30% |
| 2001 | 29 | Missouri | 12 | Urban Other Arterial | 92.70% | 0.00% | 0.40% | 0.00% | 3.20% | 3.70% |
| 2001 | 30 | Montana | 12 | Urban Other Arterial | 66.90% | 0.10% | 0.70% | 27.40% | 3.30% | 1.60% |
| 2001 | 31 | Nebraska | 12 | Urban Other Arterial | 55.86% | 0.16% | 0.16% | 39.23% | 2.27% | 2.32% |
| 2001 | 32 | Nevada | 12 | Urban Other Arterial | 94.10% | 0.00% | 0.50% | 0.00% | 2.30% | 3.10% |
| 2001 | 33 | New Hampshire | 12 | Urban Other Arterial | 66.10% | 2.50% | 1.20% | 22.70% | 3.40% | 4.10% |
| 2001 | 34 | New Jersey | 12 | Urban Other Arterial | 76.70% | 0.30% | 0.90% | 13.10% | 4.50% | 4.50% |
| 2001 | 35 | New Mexico | 12 | Urban Other Arterial | 62.30% | 0.90% | 1.20% | 20.60% | 7.70% | 7.30% |
| 2001 | 36 | New York | 12 | Urban Other Arterial | 85.60% | 0.20% | 1.20% | 8.10% | 3.50% | 1.40% |
| 2001 | 37 | North Carolina | 12 | Urban Other Arterial | 77.40% | 0.30% | 0.50% | 14.60% | 3.60% | 3.60% |
| 2001 | 38 | North Dakota | 12 | Urban Other Arterial | 58.30% | 0.40% | 0.50% | 24.90% | 5.70% | 10.20% |
| 2001 | 39 | Ohio | 12 | Urban Other Arterial | 77.40% | 0.50% | 0.10% | 16.00% | 1.60% | 4.40% |
| 2001 | 40 | Oklahoma | 12 | Urban Other Arterial | 68.10% | 0.16% | 0.43% | 21.87% | 6.37% | 3.07% |
| 2001 | 41 | Oregon | 12 | Urban Other Arterial | 64.68% | 0.31% | 0.50% | 28.52% | 3.68% | 2.32% |
| 2001 | 42 | Pennsylvania | 12 | Urban Other Arterial | 75.00% | 0.00% | 0.00% | 18.70% | 4.10% | 2.20% |
| 2001 | 44 | Rhode Island | 12 | Urban Other Arterial | 80.30% | 1.10% | 0.20% | 10.60% | 3.70% | 4.10% |
| 2001 | 45 | South Carolina | 12 | Urban Other Arterial | 81.10% | 0.60% | 0.30% | 11.20% | 4.20% | 2.60% |
| 2001 | 46 | South Dakota | 12 | Urban Other Arterial | 74.30% | 0.00% | 0.10% | 21.30% | 1.00% | 3.30% |
| 2001 | 47 | Tennessee | 12 | Urban Other Arterial | 80.00% | 0.50% | 0.10% | 14.70% | 1.70% | 3.00% |
| 2001 | 48 | Texas | 12 | Urban Other Arterial | 71.42% | 0.00% | 0.24% | 20.43% | 4.05% | 3.86% |
| 2001 | 49 | Utah | 12 | Urban Other Arterial | 74.40% | 0.00% | 0.20% | 16.90% | 4.10% | 4.40% |
| 2001 | 50 | Vermont | 12 | Urban Other Arterial | 78.20% | 0.40% | 0.50% | 16.20% | 3.00% | 1.70% |
| 2001 | 51 | Virginia | 12 | Urban Other Arterial | 83.25% | 0.22% | 0.44% | 11.84% | 2.22% | 2.02% |
| 2001 | 53 | Washington | 12 | Urban Other Arterial | 63.80% | 0.30% | 0.20% | 28.90% | 4.30% | 2.50% |
| 2001 | 54 | West Virginia | 12 | Urban Other Arterial | 81.70% | 0.10% | 0.30% | 12.80% | 5.10% | 0.00% |
| 2001 | 55 | Wisconsin | 12 | Urban Other Arterial | 75.50% | 0.50% | 0.40% | 15.50% | 3.20% | 4.90% |
| 2001 | 56 | Wyoming | 12 | Urban Other Arterial | 49.10% | 0.30% | 0.30% | 40.60% | 2.30% | 7.40% |
| 2001 | 1 | Alabama | 14 | Other Urban | 78.93% | 0.26% | 0.30% | 15.07% | 2.42% | 3.03% |
| 2001 | 2 | Alaska | 14 | Other Urban | 70.80% | 0.70% | 0.50% | 22.30% | 5.70% | 0.00% |
| 2001 | 4 | Arizona | 14 | Other Urban | 65.80% | 0.90% | 0.50% | 29.30% | 2.40% | 1.10% |
| 2001 | 5 | Arkansas | 14 | Other Urban | 77.30% | 0.50% | 0.30% | 18.00% | 2.50% | 1.40% |
| 2001 | 6 | California | 14 | Other Urban | 82.90% | 0.40% | 1.00% | 11.40% | 2.40% | 1.90% |
| 2001 | 8 | Colorado | 14 | Other Urban | 54.30% | 0.40% | 0.10% | 39.40% | 3.40% | 2.40% |
| 2001 | 9 | Connecticut | 14 | Other Urban | 83.85% | 0.17% | 0.00% | 13.99% | 1.41% | 0.58% |
| 2001 | 10 | Delaware | 14 | Other Urban | 71.25% | 0.15% | 1.05% | 20.70% | 6.85% | 0.00% |
| 2001 | 11 | District of Columbia | 14 | Other Urban | 95.00% | 0.50% | 0.60% | 1.20% | 2.60% | 0.10% |
| 2001 | 12 | Florida | 14 | Other Urban | 81.20% | 0.40% | 0.40% | 14.60% | 2.50% | 0.90% |
| 2001 | 13 | Georgia | 14 | Other Urban | 73.80% | 0.10% | 0.40% | 23.20% | 2.20% | 0.30% |
| 2001 | 15 | Hawaii | 14 | Other Urban | 90.45% | 0.25% | 0.09% | 7.57% | 1.00% | 0.64% |
| 2001 | 16 | Idaho | 14 | Other Urban | ||||||
| 2001 | 17 | Illinois | 14 | Other Urban | 95.30% | 0.00% | 0.50% | 0.00% | 2.60% | 1.60% |
| 2001 | 18 | Indiana | 14 | Other Urban | ||||||
| 2001 | 19 | Iowa | 14 | Other Urban | 92.60% | 1.10% | 0.20% | 0.00% | 3.40% | 2.70% |
| 2001 | 20 | Kansas | 14 | Other Urban | 74.70% | 0.30% | 0.30% | 22.30% | 1.80% | 0.60% |
| 2001 | 21 | Kentucky | 14 | Other Urban | 60.70% | 0.60% | 0.90% | 27.80% | 5.50% | 4.50% |
| 2001 | 22 | Louisiana | 14 | Other Urban | 59.10% | 0.30% | 0.70% | 24.50% | 6.30% | 9.10% |
| 2001 | 23 | Maine | 14 | Other Urban | 75.20% | 0.50% | 0.40% | 20.20% | 2.70% | 1.00% |
| 2001 | 24 | Maryland | 14 | Other Urban | 73.90% | 0.30% | 1.00% | 17.60% | 4.90% | 2.30% |
| 2001 | 25 | Massachusetts | 14 | Other Urban | 79.90% | 0.00% | 0.60% | 15.80% | 3.20% | 0.50% |
| 2001 | 26 | Michigan | 14 | Other Urban | 73.40% | 0.30% | 1.20% | 21.10% | 3.40% | 0.60% |
| 2001 | 27 | Minnesota | 14 | Other Urban | 98.10% | 0.00% | 0.40% | 0.00% | 1.30% | 0.20% |
| 2001 | 28 | Mississippi | 14 | Other Urban | 73.70% | 0.20% | 0.20% | 20.70% | 4.20% | 1.00% |
| 2001 | 29 | Missouri | 14 | Other Urban | 93.70% | 0.00% | 0.80% | 0.00% | 2.50% | 3.00% |
| 2001 | 30 | Montana | 14 | Other Urban | 72.30% | 0.10% | 1.40% | 25.40% | 0.70% | 0.10% |
| 2001 | 31 | Nebraska | 14 | Other Urban | 58.49% | 0.24% | 0.31% | 36.80% | 2.56% | 1.61% |
| 2001 | 32 | Nevada | 14 | Other Urban | 97.40% | 0.00% | 0.50% | 0.00% | 1.80% | 0.30% |
| 2001 | 33 | New Hampshire | 14 | Other Urban | 71.80% | 2.10% | 0.80% | 18.80% | 3.60% | 2.90% |
| 2001 | 34 | New Jersey | 14 | Other Urban | 82.30% | 0.50% | 1.10% | 10.90% | 3.10% | 2.10% |
| 2001 | 35 | New Mexico | 14 | Other Urban | 67.10% | 0.90% | 3.50% | 19.40% | 6.30% | 2.80% |
| 2001 | 36 | New York | 14 | Other Urban | 82.90% | 0.20% | 0.70% | 12.30% | 3.10% | 0.80% |
| 2001 | 37 | North Carolina | 14 | Other Urban | 79.90% | 0.40% | 0.50% | 14.10% | 3.50% | 1.60% |
| 2001 | 38 | North Dakota | 14 | Other Urban | 48.70% | 0.60% | 0.50% | 25.80% | 4.60% | 19.80% |
| 2001 | 39 | Ohio | 14 | Other Urban | 79.80% | 0.60% | 0.10% | 16.30% | 1.30% | 1.90% |
| 2001 | 40 | Oklahoma | 14 | Other Urban | 72.99% | 0.15% | 0.25% | 21.83% | 2.98% | 1.80% |
| 2001 | 41 | Oregon | 14 | Other Urban | 65.56% | 0.47% | 0.53% | 29.67% | 2.57% | 1.20% |
| 2001 | 42 | Pennsylvania | 14 | Other Urban | 76.10% | 0.00% | 0.00% | 18.50% | 4.60% | 0.80% |
| 2001 | 44 | Rhode Island | 14 | Other Urban | 82.10% | 0.70% | 0.50% | 12.80% | 2.00% | 1.90% |
| 2001 | 45 | South Carolina | 14 | Other Urban | 80.30% | 0.90% | 0.30% | 12.00% | 4.20% | 2.30% |
| 2001 | 46 | South Dakota | 14 | Other Urban | 74.00% | 0.00% | 0.10% | 22.00% | 0.60% | 3.30% |
| 2001 | 47 | Tennessee | 14 | Other Urban | 82.50% | 0.30% | 0.10% | 14.30% | 1.10% | 1.70% |
| 2001 | 48 | Texas | 14 | Other Urban | 61.10% | 0.00% | 0.26% | 31.08% | 6.02% | 1.54% |
| 2001 | 49 | Utah | 14 | Other Urban | 87.80% | 0.00% | 0.10% | 12.00% | 0.10% | 0.00% |
| 2001 | 50 | Vermont | 14 | Other Urban | 77.90% | 0.50% | 0.60% | 16.80% | 3.10% | 1.10% |
| 2001 | 51 | Virginia | 14 | Other Urban | 82.66% | 0.33% | 0.55% | 12.85% | 2.57% | 1.05% |
| 2001 | 53 | Washington | 14 | Other Urban | 63.20% | 0.00% | 0.30% | 28.70% | 5.40% | 2.40% |
| 2001 | 54 | West Virginia | 14 | Other Urban | 75.40% | 0.20% | 1.20% | 20.80% | 2.40% | 0.00% |
| 2001 | 55 | Wisconsin | 14 | Other Urban | 73.90% | 0.60% | 0.50% | 17.80% | 3.60% | 3.60% |
| 2001 | 56 | Wyoming | 14 | Other Urban | 53.80% | 0.20% | 0.50% | 41.40% | 2.60% | 1.50% |
