{
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  "conformsTo": "https://project-open-data.cio.gov/v1.1/schema",
  "@context": "https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld",
  "@type": "dcat:Catalog",
  "dataset": [
    {
      "@type": "dcat:Dataset",
      "title": "Downtown Brockton Transportation Technology Project — Data Package",
      "description": "Traffic controller events, environmental observations including all-sensor averages, device-specific waste-receptacle records, and travel-time GPS observations from the Downtown Brockton Transportation Technology Project on Warren Avenue in Brockton, Massachusetts. Funded through FY 2022 SMART Stage 1 grant SMARTFY22N1P1G26. Records span May 2025 through June 2026, with different coverage by dataset. Source observations and sensor averages are retained. Only observations dated on or before June 30, 2026 are included, based on source timestamps.",
      "keyword": [
        "Brockton",
        "SMART grant",
        "Warren Avenue",
        "traffic signals",
        "controller event logs",
        "pavement temperature",
        "smart waste receptacles",
        "travel time",
        "emergency vehicle preemption",
        "air quality"
      ],
      "modified": "2026-09-30",
      "publisher": {
        "@type": "org:Organization",
        "name": "Strengthening Mobility and Revolutionizing Transportation (SMART) Program",
        "subOrganizationOf": {
          "@type": "org:Organization",
          "name": "Department of Transportation",
          "subOrganizationOf": {
            "@type": "org:Organization",
            "name": "United States Government"
          }
        }
      },
      "contactPoint": {
        "@type": "vcard:Contact",
        "fn": "Patrick Hill",
        "hasEmail": "mailto:phill@brockton.gov"
      },
      "identifier": "https://doi.org/10.21949/q4x5-8w68",
      "accessLevel": "public",
      "license": "https://creativecommons.org/licenses/by/4.0/",
      "spatial": "Warren Avenue corridor, Brockton, Massachusetts, United States",
      "temporal": "2025-05-27/2026-06-30",
      "language": [
        "en-US"
      ],
      "rights": "City-owned material is licensed under CC BY 4.0. Controller network addresses have been redacted.",
      "bureauCode": [
        "021:04"
      ],
      "programCode": [
        "021:053"
      ],
      "distribution": [
        {
          "@type": "dcat:Distribution",
          "title": "Downtown Brockton Transportation Technology Project — Data Package",
          "description": "ZIP containing CSV datasets, README, data dictionary, DCAT-US metadata, and final DMP PDF.",
          "format": "ZIP",
          "mediaType": "application/zip",
          "accessURL": "https://doi.org/10.21949/q4x5-8w68"
        }
      ],
      "references": [
        "https://doi.org/10.21949/8hd6-mw88",
        "https://doi.org/10.48321/D1KQ1V"
      ],
      "landingPage": "https://doi.org/10.21949/q4x5-8w68"
    }
  ]
}