| 4.1. Overview |
| 4.2. Multi-year trends & charts |
| 4.2.1. Public Road Mileage and VMT, 1920 - 2019 - Chart |
VMT-421C |
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| 4.2.2. Public Road Mileage, Lane Miles and VMT, 1980 - 2019 - Chart |
VMT-422C |
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| 4.2.3. Public road mileage by functional system, 1980 - 2019 |
HM-220 |
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| 4.2.4. Public road lane-miles by functional system, 1980 - 2019 |
HM-260 |
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| 4.3. National tables |
| 4.3.1. Public road length by type of surface and ownership/functional system |
HM-12 |
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| 4.3.2. Public road length by ownership and Federal-aid highways |
HM-16 |
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| 4.3.3. Public road length by functional system and Federal-aid highways |
HM-18 |
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| 4.3.4. Federal-aid length by traffic lanes and access control |
HM-36 |
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| 4.3.5. Federal-aid length by lane width, access control, and average daily traffic volume |
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| 4.3.6. Functional system length by lane width, access control, and average daily traffic volume |
HM-59 |
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| 4.4. State tables |
| 4.4.1. Public roads |
| 4.4.1.1. Length by ownership |
HM-10 |
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| 4.4.1.2. Length by functional system |
HM-20 |
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| 4.4.1.3. Length by functional system and ownership |
HM-50 |
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| 4.4.1.4. Estimated lane-miles by functional system |
HM-60 |
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| 4.4.1.5. Tolled Roadway Length |
HM-25 |
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| 4.4.2. Federal-aid Highway System |
| 4.4.2.1. Length by ownership |
HM-14 |
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| 4.4.2.2. Length by functional system |
HM-15 |
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| 4.4.2.3. Length by type of surface |
HM-31 |
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| 4.4.2.4. Length by lane width |
HM-33 |
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| 4.4.2.5. Length by traffic lanes and access control |
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| 4.4.2.6. Estimated lane-miles |
HM-48 |
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| 4.4.3. National Highway System |
| 4.4.3.1. Length by open and not open to traffic |
HM-30 |
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| 4.4.3.2. Length by ownership |
HM-40 |
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| 4.4.3.3. Length by functional system |
HM-41 |
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| 4.4.3.4. Lane-miles by functional system |
HM-43 |
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| 4.4.3.5. Strategic Highway Network (STRAHNET) length |
HM-49 |
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| 4.4.4. Arterial and Collectors |
| 4.4.4.1. Length by type of surface |
HM-51 |
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| 4.4.4.2. Length by lane width |
HM-53 |
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| 4.4.4.3. Length by traffic lanes and access control |
HM-55 |
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| 4.4.5. Urbanized area summaries |
| 4.4.5.1. Length and daily vehicle-miles of travel |
HM-71 |
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| 4.4.5.2. Selected characteristics |
HM-72 |
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| 4.4.6. State highway agency-owned public roads |
| 4.4.6.1. Estimated length by functional system |
HM-80 |
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| 4.4.6.2. Estimated lane-miles |
HM-81 |
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