{"@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 lane miles in the National Highway System by rural / urban and functional system for the 50 states, DC, and Puerto Rico from the Highway Statistics table HM-43.  (Note: In 2009, Functional System changed attributes.)", "distribution": [{"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/38tt-tc5g/columns.json", "describedByType": "application/json", "downloadURL": "https://data.transportation.gov/api/v3/views/38tt-tc5g/query.json?accessType=DOWNLOAD", "mediaType": "application/json"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/38tt-tc5g/columns.xml", "describedByType": "application/xml", "downloadURL": "https://data.transportation.gov/api/v3/views/38tt-tc5g/export.xml?accessType=DOWNLOAD", "mediaType": "application/xml"}, {"@type": "dcat:Distribution", "downloadURL": "https://data.transportation.gov/api/v3/views/38tt-tc5g/export.csv?accessType=DOWNLOAD", "mediaType": "text/csv"}], "identifier": "https://data.transportation.gov/api/views/38tt-tc5g", "issued": "2025-03-31", "keyword": ["functional system", "highway performance monitoring system", "highway statistics", "highways", "hppi", "lane miles"], "landingPage": "https://www.fhwa.dot.gov/policyinformation/statistics/", "language": ["en-US"], "license": "http://www.usa.gov/publicdomain/label/1.0/", "modified": "2026-04-23", "primaryITInvestmentUII": "021-099281808", "programCode": ["021:009"], "publisher": {"@type": "org:Organization", "name": "Federal Highway Administration"}, "temporal": "2024-01-01/2024-12-31", "theme": ["Roadways and Bridges"], "title": "National Highway System Lane-Miles by Functional System and State, 2000 - 2009, 2011 - 2024 (HM-43)"}