{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "R/P1Y", "agencyDataSeriesURL": "http://www.infopave.com/", "agencyProgramURL": "http://www.fhwa.dot.gov/research/tfhrc/programs/infrastructure/pavements/ltpp/", "bureauCode": ["021:15"], "categoryDesignation": "Research", "collectionInstrument": "https://infopave.fhwa.dot.gov", "contactPoint": {"@type": "vcard:Contact", "fn": "FHWA-Datahub", "hasEmail": "mailto:Highway-Data@dot.gov"}, "dataQuality": true, "describedBy": "https://infopave.fhwa.dot.gov/Page/Index/IMS_USER_GUIDE", "description": "Long-term Pavement performance, construction, traffic, and environmental data for more than 2500 pavement sections in the United States and Canada. More than a dozen experimental designs address specially constructed and existing asphalt and concrete pavements, and maintenance and rehabilitation strategies. Data collection has been on-going since 1990. About one third of the pavement sections are still under study. New warm-mix asphalt concrete pavement overlay sections are currently being recruited and constructed.", "distribution": [{"@type": "dcat:Distribution", "description": "This access point provides access to the LTPP InfoPave visualization features including inspection videos, distress maps and images, manual distress surveys, pavement cross-section, section timeline, and data pivot", "downloadURL": "https://infopave.fhwa.dot.gov/%3FGoto=Visualization", "mediaType": "application/atom+xml", "title": "Visualization"}], "identifier": "679.8", "isPartOf": "DOT-679", "issued": "1993-07-01", "keyword": ["asphalt concrete", "continuously reinforced concrete pavement", "fwd", "ltpp", "maintenance", "materials testing", "pavement", "pavement distresses", "pavement performance", "portland cement concrete", "profile", "rehabilitation", "texture", "traffic loading"], "landingPage": "https://data.transportation.gov/d/8jdk-cepv", "language": ["en-US"], "license": "https://project-open-data.cio.gov/unknown-license/", "modified": "2026-03-30", "phone": "202-493-3149", "programCode": ["021:009"], "publisher": {"@type": "org:Organization", "name": "Federal Highway Administration"}, "references": ["https://infopave.fhwa.dot.gov/%3FGoto=Library"], "temporal": "R/1993-07-01/P1Y", "theme": ["Transportation"], "title": "Long-Term Pavement Performance (LTPP) - Visualization"}