{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["021:15"], "contactPoint": {"@type": "vcard:Contact", "fn": "Office of Highway Policy Information", "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", "downloadURL": "https://data.transportation.gov/api/views/3hqe-sh4k/rows.csv?accessType=DOWNLOAD", "mediaType": "text/csv"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/3hqe-sh4k/columns.rdf", "describedByType": "application/rdf+xml", "downloadURL": "https://data.transportation.gov/api/views/3hqe-sh4k/rows.rdf?accessType=DOWNLOAD", "mediaType": "application/rdf+xml"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/3hqe-sh4k/columns.json", "describedByType": "application/json", "downloadURL": "https://data.transportation.gov/api/views/3hqe-sh4k/rows.json?accessType=DOWNLOAD", "mediaType": "application/json"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/3hqe-sh4k/columns.xml", "describedByType": "application/xml", "downloadURL": "https://data.transportation.gov/api/views/3hqe-sh4k/rows.xml?accessType=DOWNLOAD", "mediaType": "application/xml"}], "identifier": "https://data.transportation.gov/api/views/3hqe-sh4k", "issued": "2025-03-24", "keyword": ["rural/urban", "state", "miles", "functional system", "highway statistics", "roadway & bridges"], "landingPage": "https://www.fhwa.dot.gov/policyinformation/statistics.cfm", "language": ["en-US"], "license": "https://www.usa.gov/government-works", "modified": "2026-03-26", "primaryITInvestmentUII": "021-099281808", "programCode": ["021:009"], "publisher": {"@type": "org:Organization", "name": "Federal Highway Administration"}, "spatial": "State", "temporal": "1980/2024", "theme": ["Roadways and Bridges"], "title": "Public Road Length by Functional System and State, 1980 - 2024 (HM-20)"}