{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "R/P1M", "bureauCode": ["021:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Bureau of Transportation Statistics", "hasEmail": "mailto:ramond.robinson@dot.gov"}, "description": "This dataset contains monthly performance statistics for the Great Lakes-St. Lawrence Seaway system.", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://data.transportation.gov/api/views/swpm-impx/rows.csv?accessType=DOWNLOAD", "mediaType": "text/csv"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/swpm-impx/columns.rdf", "describedByType": "application/rdf+xml", "downloadURL": "https://data.transportation.gov/api/views/swpm-impx/rows.rdf?accessType=DOWNLOAD", "mediaType": "application/rdf+xml"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/swpm-impx/columns.json", "describedByType": "application/json", "downloadURL": "https://data.transportation.gov/api/views/swpm-impx/rows.json?accessType=DOWNLOAD", "mediaType": "application/json"}, {"@type": "dcat:Distribution", "describedBy": "https://data.transportation.gov/api/views/swpm-impx/columns.xml", "describedByType": "application/xml", "downloadURL": "https://data.transportation.gov/api/views/swpm-impx/rows.xml?accessType=DOWNLOAD", "mediaType": "application/xml"}], "identifier": "https://data.transportation.gov/api/views/swpm-impx", "issued": "2021-08-11", "keyword": ["great lakes-st. lawrence seaway", "commercial tonnage", "gls", "great lakes st. lawrence seaway development corporation", "reliability", "saint lawrence seaway", "seaway", "sls", "slsdc", "st. lawrence seaway", "tonnage", "vessel transits"], "landingPage": "https://data.transportation.gov/d/swpm-impx", "language": ["en-US"], "license": "https://www.usa.gov/government-works", "modified": "2026-02-11", "programCode": ["021:051"], "publisher": {"@type": "org:Organization", "name": "Bureau of Transportation Statistics"}, "theme": ["Research and Statistics"], "title": "Great Lakes St. Lawrence Seaway Performance"}