{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "agencyDataSeriesURL": "https://www.fhwa.dot.gov/policyinformation/hpms.cfm",
  "agencyProgramURL": "https://www.fhwa.dot.gov/policyinformation/",
  "analysisUnit": "State",
  "bureauCode": [
    "021:15"
  ],
  "categoryDesignation": "Research/Administrative",
  "collectionInstrument": "State DOTs",
  "conformsTo": "https://www.fhwa.dot.gov/policyinformation/hpms/fieldmanual/",
  "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/query.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": "https://www.usa.gov/government-works",
  "modified": "2026-09-17",
  "primaryITInvestmentUII": "021-099281808",
  "programCode": [
    "021:009"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "Federal Highway Administration"
  },
  "spatial": "United States",
  "systemOfRecords": "https://www.govinfo.gov/content/pkg/FR-2006-05-03/pdf/E6-6510.pdf",
  "temporal": "2000/2024",
  "theme": [
    "Transportation"
  ],
  "title": "National Highway System Lane-Miles by Functional System and State, 2000 - 2009, 2011 - 2024 (HM-43)"
}