{
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  "accessLevel": "public",
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "DCGISopendata",
    "hasEmail": "mailto:gisgroup@dc.gov"
  },
  "description": "<DIV STYLE=\"text-align:Left;\"><P><SPAN>The dataset contains the location and attributes of traffic signals in the District of Columbia. Attributes are aggregated to the controller level (ACISA), where a single controller directs one or more traffic signals at one intersection or clustered intersections. The following attributes of signalized intersections are tracked: leading pedestrian intervals (LPIs), No Turn on Red (NTOR) signage, all-pedestrian phases, bike phases, queue jumps, transit signal priority (TSP), pedestrian recall mode, HAWK/PHB signals, and accessible pedestrian signals (APS).</SPAN></P><P><SPAN>This data is updated periodically and may not be current at the time of viewing. More information on safety features implemented at traffic signals can be found here: https://visionzero.dc.gov/pages/engineering.</SPAN></P></DIV>",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Transportation_Signs_Signals_Lights_WebMercator/MapServer/170",
      "format": "ArcGIS GeoServices REST API",
      "mediaType": "application/json",
      "title": "ArcGIS GeoService"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://maps2.dcgis.dc.gov/dcgis/services/DCGIS_DATA/Transportation_Signs_Signals_Lights_WebMercator/MapServer/WMSServer?request=GetCapabilities&service=WMS",
      "format": "OGC WMS",
      "mediaType": "application/vnd.ogc.wms_xml",
      "title": "OGC WMS"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://opendata.dc.gov/api/download/v1/items/ca6ad078a6f6415389e220704b7698ac/csv?layers=170",
      "format": "CSV",
      "mediaType": "text/csv",
      "title": "CSV"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://opendata.dc.gov/api/download/v1/items/ca6ad078a6f6415389e220704b7698ac/geojson?layers=170",
      "format": "GeoJSON",
      "mediaType": "application/vnd.geo+json",
      "title": "GeoJSON"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://opendata.dc.gov/api/download/v1/items/ca6ad078a6f6415389e220704b7698ac/kml?layers=170",
      "format": "KML",
      "mediaType": "application/vnd.google-earth.kml+xml",
      "title": "KML"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://opendata.dc.gov/api/download/v1/items/ca6ad078a6f6415389e220704b7698ac/shapefile?layers=170",
      "format": "ZIP",
      "mediaType": "application/zip",
      "title": "Shapefile"
    },
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://opendata.dc.gov/datasets/DCGIS::traffic-signal",
      "format": "Web Page",
      "mediaType": "text/html",
      "title": "ArcGIS Hub Dataset"
    }
  ],
  "identifier": "https://www.arcgis.com/home/item.html?id=ca6ad078a6f6415389e220704b7698ac&sublayer=170",
  "issued": "2021-10-18T14:03:37.000Z",
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    "ddot",
    "traffic safety",
    "traffic signal",
    "transportation"
  ],
  "landingPage": "https://opendata.dc.gov/datasets/DCGIS::traffic-signal",
  "license": "https://creativecommons.org/licenses/by/4.0",
  "modified": "2026-09-05T07:00:45.000Z",
  "publisher": {
    "name": "City of Washington, DC"
  },
  "spatial": "-77.1118,38.8212,-76.9108,38.9907",
  "theme": [
    "geospatial"
  ],
  "title": "Traffic Signal"
}