Public Road Length by Functional System and State, 1980 - 2024 (HM-20)
Annual length of U.S. public roads in miles by functional system for each of the 50 states, DC, and Puerto Rico from the Highway Statistics table HM-20. (Note: In 2009, the Urban functional class of Collectors became Major Collectors and Minor Collectors.)
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"021:15"
]
|
| contactPoint |
{
"fn": "Office of Highway Policy Information",
"@type": "vcard:Contact",
"hasEmail": "mailto:PolicyInfoFeedback@dot.gov"
}
|
| dataQuality |
true
|
| description | Annual length of U.S. public roads in miles by functional system for each of the 50 states, DC, and Puerto Rico from the Highway Statistics table HM-20. (Note: In 2009, the Urban functional class of Collectors became Major Collectors and Minor Collectors.) |
| distribution |
[
{
"@type": "dcat:Distribution",
"mediaType": "application/json",
"describedBy": "https://data.transportation.gov/api/views/3hqe-sh4k/columns.json",
"downloadURL": "https://data.transportation.gov/api/views/3hqe-sh4k/rows.json?accessType=DOWNLOAD",
"describedByType": "application/json"
},
{
"@type": "dcat:Distribution",
"mediaType": "application/rdf+xml",
"describedBy": "https://data.transportation.gov/api/views/3hqe-sh4k/columns.rdf",
"downloadURL": "https://data.transportation.gov/api/views/3hqe-sh4k/rows.rdf?accessType=DOWNLOAD",
"describedByType": "application/rdf+xml"
},
{
"@type": "dcat:Distribution",
"mediaType": "application/xml",
"describedBy": "https://data.transportation.gov/api/views/3hqe-sh4k/columns.xml",
"downloadURL": "https://data.transportation.gov/api/views/3hqe-sh4k/rows.xml?accessType=DOWNLOAD",
"describedByType": "application/xml"
},
{
"@type": "dcat:Distribution",
"mediaType": "text/csv",
"downloadURL": "https://data.transportation.gov/api/views/3hqe-sh4k/rows.csv?accessType=DOWNLOAD"
}
]
|
| identifier | https://data.transportation.gov/api/views/3hqe-sh4k |
| issued | 2025-03-24 |
| keyword |
[
"functional system",
"highway statistics",
"miles",
"roadway & bridges",
"rural/urban",
"state"
]
|
| landingPage | https://www.fhwa.dot.gov/policyinformation/statistics.cfm |
| language |
[
"en-US"
]
|
| license | https://www.usa.gov/government-works |
| modified | 2026-01-14 |
| primaryITInvestmentUII | 021-099281808 |
| programCode |
[
"021:009"
]
|
| publisher |
{
"name": "Federal Highway Administration",
"@type": "org:Organization"
}
|
| spatial | State |
| temporal | 1980/2024 |
| theme |
[
"Roadways and Bridges"
]
|
| title | Public Road Length by Functional System and State, 1980 - 2024 (HM-20) |
