Document

DocumentDraftv1.0.0-rc.2

A document: one ODS file. It holds the four pillars and the files their records point at. Every producer writes this shape.

https://opendevelopmentstandards.org/schema/1.0.0-rc.2/core/Document.json

Fields

  • id
    textnot empty

    The record's id: unique within the document.

  • name
    text

    The name people use for the document.

  • description
    text

    What the document holds, in words.

  • odsVersionRequired
    textmatches ^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(-[0-9A-Za-z.-]+)?$

    The ODS release the document follows, such as 1.0.0. Each schema's $id names it.

  • generatedAt
    date-time (RFC 3339)

    When the document was made.

  • producer
    object, fields below

    The software that made the document.

    • nameRequired
      textnot empty

      The software's name.

    • version
      text

      Its version.

  • sharing
    One ofthe codes below

    Where the document's contents may go. A reader and every service it connects to follow it.

    open
    Anywhere.
    approved
    Only to services the reader approves.
    local
    Nowhere: the contents stay on the reader's device.
  • risk
  • context
  • environment
  • methodology
  • files
    List ofEntityFile

    The files that records point at.

Links

No other schema holds this one or points at it.

Examples

An id that another example defines opens that record.

Example 3

{
  "id": "document-0412",
  "name": "Wellsite 04-12 night-time noise assessment",
  "odsVersion": "1.0.0-rc.2",
  "generatedAt": "2026-07-24T18:00:00Z",
  "producer": {
    "name": "Example Producer",
    "version": "1.2.0"
  },
  "sharing": "approved",
  "risk": {
    "frameworks": [
      {
        "id": "framework-d038",
        "name": "Directive 038: Noise Control",
        "issuer": "stakeholder-aer",
        "jurisdiction": "jurisdiction-ab",
        "edition": "April 2024",
        "citation": {
          "title": "Directive 038: Noise Control",
          "url": "https://www.aer.ca/regulating-development/rules-and-directives/directives/directive-038"
        },
        "periods": [
          {
            "id": "period-night",
            "name": "Nighttime",
            "timeZone": "America/Edmonton",
            "windows": [
              {
                "start": "22:00",
                "end": "07:00"
              }
            ]
          }
        ],
        "variables": [
          {
            "id": "variable-bsl",
            "name": "Basic sound level",
            "value": {
              "amount": 40,
              "unit": "dB"
            }
          }
        ],
        "policies": [
          {
            "id": "policy-noise",
            "name": "Noise at dwellings",
            "type": "objective"
          }
        ]
      }
    ]
  },
  "context": {
    "stakeholders": [
      {
        "id": "stakeholder-operator",
        "name": "Example Energy Ltd.",
        "type": "organization"
      },
      {
        "id": "stakeholder-aer",
        "name": "Alberta Energy Regulator",
        "type": "organization",
        "identifiers": [
          {
            "scheme": "ca.ab.aer_ba_code",
            "value": "A0001"
          }
        ]
      },
      {
        "id": "stakeholder-consultant",
        "name": "Example Acoustics Inc.",
        "type": "organization"
      },
      {
        "id": "stakeholder-lab",
        "name": "Example Calibration Laboratory",
        "type": "organization"
      }
    ],
    "jurisdictions": [
      {
        "id": "jurisdiction-ca",
        "name": "Canada",
        "type": "country",
        "identifiers": [
          {
            "scheme": "iso_3166_1",
            "value": "CA"
          }
        ]
      },
      {
        "id": "jurisdiction-ab"
      }
    ],
    "permits": [
      {
        "id": "permit-wellsite",
        "name": "Well licence 0512345",
        "type": "licence",
        "issuer": "stakeholder-aer",
        "holder": "stakeholder-operator",
        "jurisdiction": "jurisdiction-ab",
        "status": "active",
        "effective": {
          "start": "2026-05-04T00:00:00-06:00"
        },
        "features": [
          "feature-wellsite"
        ],
        "identifiers": [
          {
            "scheme": "ca.ab.aer_licence",
            "value": "0512345"
          }
        ]
      }
    ],
    "projects": [
      {
        "id": "project-0412",
        "name": "Wellsite 04-12 compressor",
        "features": [
          "feature-wellsite",
          "feature-dwelling"
        ],
        "activities": [
          {
            "id": "activity-operation",
            "name": "Operation",
            "type": "operation"
          }
        ]
      }
    ],
    "features": [
      {
        "id": "feature-wellsite",
        "location": {
          "point": {
            "type": "Point",
            "coordinates": [
              -113.815,
              52.268,
              912.4
            ]
          },
          "crs": {
            "code": "EPSG:4617",
            "name": "NAD83(CSRS)",
            "verticalDatum": "CGVD2013",
            "verticalCode": "EPSG:6647",
            "coordinateEpoch": 2010
          },
          "absoluteHeight": 912.4,
          "positioning": {
            "method": "gnss_rtk",
            "horizontalAccuracy": 0.02,
            "verticalAccuracy": 0.03,
            "confidenceLevel": 95,
            "determinedAt": "2026-07-02T10:15:00-06:00"
          },
          "geographicIdentifiers": [
            {
              "type": "legal_land_description",
              "scheme": "ca.dls",
              "value": "04-12-038-27W4"
            }
          ],
          "linearReference": {
            "line": "feature-pipeline",
            "distance": {
              "amount": 12.4,
              "unit": "km"
            }
          }
        },
        "geometry": {
          "type": "Polygon",
          "coordinates": [
            [
              [
                -113.8157,
                52.2676
              ],
              [
                -113.8143,
                52.2676
              ],
              [
                -113.8143,
                52.2684
              ],
              [
                -113.8157,
                52.2684
              ],
              [
                -113.8157,
                52.2676
              ]
            ]
          ],
          "positioning": {
            "method": "surveyed",
            "horizontalAccuracy": 0.05,
            "confidenceLevel": 95
          },
          "original": {
            "file": "file-site-plan",
            "layer": "lease_boundary",
            "feature": "17",
            "geometryType": "CurvePolygon",
            "crs": {
              "code": "EPSG:3402"
            },
            "changes": [
              {
                "type": "curves_linearized",
                "tolerance": 0.01
              },
              {
                "type": "reprojected"
              }
            ]
          }
        },
        "sources": [
          {
            "id": "source-compressor",
            "name": "Compressor package",
            "type": "compressor",
            "location": {
              "point": {
                "type": "Point",
                "coordinates": [
                  -113.8148,
                  52.2683
                ]
              },
              "relativeHeight": 3.5
            },
            "properties": [
              {
                "type": "rated_power",
                "value": {
                  "amount": 1000,
                  "unit": "kW"
                }
              }
            ],
            "operatingStates": [
              {
                "id": "state-loaded",
                "name": "Loaded",
                "type": "full_load"
              },
              {
                "id": "state-idle",
                "name": "Idle",
                "type": "idle"
              }
            ],
            "emissions": [
              {
                "id": "emission-loaded",
                "type": "sound_power_level",
                "state": "state-loaded",
                "value": {
                  "amount": 102,
                  "unit": "dB"
                }
              }
            ]
          }
        ]
      },
      {
        "id": "feature-dwelling",
        "name": "Dwelling 450 m north-east",
        "type": "building",
        "receptorClass": "dwelling",
        "location": {
          "point": {
            "type": "Point",
            "coordinates": [
              -113.8104,
              52.2709
            ]
          },
          "relativeHeight": 1.5
        }
      },
      {
        "id": "feature-wellsite-2",
        "name": "Wellsite 04-13",
        "type": "site"
      },
      {
        "id": "feature-pipeline",
        "name": "Gathering pipeline",
        "type": "other",
        "geometry": {
          "type": "LineString",
          "coordinates": [
            [
              -113.9947,
              52.25
            ],
            [
              -113.815,
              52.268
            ],
            [
              -113.78,
              52.271
            ]
          ]
        }
      }
    ],
    "instruments": [
      {
        "id": "instrument-slm"
      },
      {
        "id": "instrument-microphone",
        "name": "Microphone 1",
        "type": "microphone"
      }
    ]
  },
  "environment": {
    "weather": [
      {
        "id": "weather-2026-07-14T22",
        "name": "Night of 14 July, 22:00",
        "location": {
          "point": {
            "type": "Point",
            "coordinates": [
              -113.815,
              52.268
            ]
          }
        },
        "interval": {
          "start": "2026-07-14T22:00:00-06:00",
          "duration": "PT1H"
        },
        "properties": [
          {
            "type": "air_temperature",
            "value": {
              "amount": 16.5,
              "unit": "degC"
            }
          },
          {
            "type": "relative_humidity",
            "value": {
              "amount": 71,
              "unit": "%"
            }
          },
          {
            "type": "wind_speed",
            "value": {
              "amount": [
                1.8,
                3.1,
                4.6
              ],
              "unit": "m/s",
              "axes": [
                {
                  "quantity": "height",
                  "unit": "m",
                  "values": [
                    10,
                    50,
                    120
                  ]
                }
              ]
            }
          },
          {
            "type": "wind_direction",
            "value": {
              "amount": 225,
              "unit": "deg"
            }
          }
        ],
        "origin": {
          "tier": "reanalysis",
          "provider": "Copernicus Climate Data Store",
          "model": "ERA5"
        }
      }
    ]
  },
  "methodology": {
    "algorithms": [
      {
        "id": "algorithm-iso9613",
        "name": "ISO 9613-2 engine",
        "type": "calculation",
        "version": "4.2.0",
        "publisher": "stakeholder-operator",
        "standard": {
          "title": "ISO 9613-2:2024",
          "edition": "2024"
        },
        "mode": "Downwind conditions, with the meteorological correction of 7.3",
        "validations": [
          "evidence-conformance"
        ]
      }
    ],
    "flows": [
      {
        "id": "flow-d038",
        "name": "Directive 038 compliance",
        "version": "3",
        "frameworks": [
          "framework-d038"
        ],
        "steps": [
          {
            "id": "step-1",
            "type": "entrypoint"
          },
          {
            "id": "step-ask-hours",
            "type": "question",
            "label": "How many hours a day does the compressor run?",
            "question": {
              "answerType": "number",
              "unit": "h"
            },
            "outputs": [
              {
                "name": "hours_per_day",
                "unit": "h",
                "valueType": "number"
              }
            ]
          },
          {
            "id": "step-propagation",
            "type": "algorithm",
            "name": "Sound levels at receptors",
            "algorithm": "algorithm-iso9613",
            "sealed": true,
            "inputs": [
              {
                "name": "sources",
                "valueType": "list"
              },
              {
                "name": "receptors",
                "valueType": "list"
              }
            ],
            "outputs": [
              {
                "name": "receptor_levels",
                "quantity": "a_weighted_sound_pressure_level",
                "unit": "dB",
                "valueType": "list"
              }
            ]
          },
          {
            "id": "step-compare",
            "type": "decision",
            "name": "Compare with the permissible sound level"
          },
          {
            "id": "step-mitigation",
            "type": "outcome",
            "name": "Mitigation needed"
          }
        ],
        "edges": [
          {
            "from": "step-1",
            "to": "step-ask-hours"
          },
          {
            "from": "step-ask-hours",
            "to": "step-propagation"
          },
          {
            "from": "step-propagation",
            "to": "step-compare"
          },
          {
            "id": "edge-over-limit",
            "from": "step-compare",
            "to": "step-mitigation",
            "label": "Over the limit",
            "when": {
              "operation": "greater",
              "arguments": [
                {
                  "variable": "night_level"
                },
                {
                  "variable": "variable-night-psl"
                }
              ]
            }
          }
        ]
      }
    ],
    "assumptions": [
      {
        "id": "assumption-downwind",
        "name": "Downwind at night",
        "subject": "feature-dwelling",
        "properties": [
          {
            "type": "wind_speed",
            "value": {
              "amount": 2,
              "unit": "m/s"
            }
          }
        ],
        "basis": "The directive asks for the worst case, which is downwind with a light wind.",
        "citation": {
          "title": "Directive 038: Noise Control",
          "section": "Appendix 2"
        }
      }
    ],
    "evidence": [
      {
        "id": "evidence-night-survey",
        "name": "Night survey at the dwelling",
        "type": "measurement",
        "subject": "feature-dwelling",
        "observed": "a_weighted_sound_pressure_level",
        "result": {
          "amount": 37.8,
          "unit": "dB",
          "statistic": {
            "type": "energy_mean"
          },
          "averaging": "PT9H"
        },
        "interval": {
          "start": "2026-07-14T22:00:00-06:00",
          "end": "2026-07-15T07:00:00-06:00"
        },
        "instrument": "instrument-slm",
        "state": "state-loaded",
        "conditions": [
          "weather-2026-07-14T22"
        ],
        "links": [
          {
            "type": "reference",
            "target": "file-recording-1",
            "targetType": "File",
            "role": "recording"
          }
        ]
      },
      {
        "id": "evidence-predicted-night",
        "name": "Predicted night level at the dwelling",
        "type": "calculation",
        "subject": "feature-dwelling",
        "observed": "a_weighted_sound_pressure_level",
        "result": {
          "amount": 36.4,
          "unit": "dB"
        },
        "algorithm": "algorithm-iso9613",
        "trace": "trace-0412-night",
        "state": "state-loaded",
        "conditions": [
          "weather-2026-07-14T22"
        ]
      },
      {
        "id": "evidence-sound-power",
        "name": "Compressor sound power test",
        "type": "measurement",
        "subject": "source-compressor",
        "observed": "sound_power_level",
        "result": {
          "amount": 102,
          "unit": "dB"
        },
        "state": "state-loaded"
      },
      {
        "id": "evidence-conformance",
        "name": "ISO/TR 17534-3 test cases",
        "type": "validation",
        "algorithm": "algorithm-iso9613"
      }
    ],
    "traces": [
      {
        "id": "trace-0412-night",
        "flow": "flow-d038",
        "flowVersion": "3",
        "framework": "framework-d038",
        "status": "completed",
        "startedAt": "2026-07-20T16:02:11Z",
        "endedAt": "2026-07-20T16:02:19Z",
        "agents": [
          {
            "agent": "stakeholder-consultant",
            "role": "author"
          },
          {
            "agent": "algorithm-iso9613",
            "role": "engine"
          }
        ],
        "inputs": [
          "feature-wellsite",
          "feature-dwelling",
          "weather-2026-07-14T22"
        ],
        "outputs": [
          "evidence-predicted-night"
        ],
        "algorithms": [
          "algorithm-iso9613"
        ],
        "inputsHash": "9f2c1e4b7a0d3c5e8f6a1b2c3d4e5f60718293a4b5c6d7e8f9a0b1c2d3e4f5a6",
        "steps": [
          {
            "step": "step-propagation",
            "sealed": true,
            "outputs": [
              {
                "name": "receptor_levels",
                "value": {
                  "amount": [
                    36.4
                  ],
                  "unit": "dB"
                }
              }
            ]
          }
        ],
        "verdict": {
          "level": "pass",
          "basis": "Every dwelling meets the night-time permissible sound level."
        }
      }
    ],
    "assessments": [
      {
        "id": "assessment-0412",
        "name": "Noise impact assessment, Wellsite 04-12",
        "status": "issued",
        "authors": [
          "stakeholder-consultant"
        ],
        "issuedAt": "2026-07-24T18:00:00Z",
        "features": [
          "feature-wellsite",
          "feature-dwelling"
        ],
        "frameworks": [
          "framework-d038"
        ],
        "traces": [
          "trace-0412-night"
        ],
        "evidence": [
          "evidence-night-survey"
        ],
        "conclusions": [
          {
            "statement": "The compressor meets the night-time permissible sound level at the dwelling.",
            "verdict": "pass",
            "records": [
              "feature-dwelling"
            ]
          }
        ]
      }
    ]
  },
  "files": [
    {
      "id": "file-recording-1",
      "name": "Night survey levels",
      "path": "files/recording-1.bin",
      "mediaType": "application/octet-stream",
      "size": 1310720,
      "sha256": "ef2d127de37b942baad06145e54b0c619a1f22327b2ebbcfbec78f5564afe39d",
      "interval": {
        "start": "2026-07-14T22:00:00-06:00",
        "end": "2026-07-15T07:00:00-06:00"
      }
    },
    {
      "id": "file-certificate",
      "name": "Calibration certificate",
      "path": "files/certificate.pdf",
      "mediaType": "application/pdf",
      "sha256": "b0f8043041133f5c164e9d39897466002623fbd226c7f1d98d19dbff9a86fec7"
    },
    {
      "id": "file-noise-map",
      "name": "Night noise map",
      "path": "files/noise-map.bin",
      "mediaType": "application/octet-stream",
      "sha256": "11696c76d6f8d359a8266486c73afd8631fa834f0d9c098211d3972fab8c9997"
    },
    {
      "id": "file-site-plan",
      "name": "Site survey plan",
      "path": "files/site-plan.gpkg",
      "mediaType": "application/geopackage+sqlite3",
      "sha256": "a94c0a375882d98dae229342ca1e3d6209620124992dd880b06802f15b3693fc"
    }
  ]
}
Show 2 more examples

Example 1

{
  "odsVersion": "1.0.0-rc.2"
}

Example 2

{
  "odsVersion": "1.0.0-rc.2",
  "context": {
    "features": [
      {
        "id": "feature-wellsite",
        "name": "Wellsite 04-12",
        "sources": [
          {
            "id": "source-compressor",
            "name": "Compressor package"
          }
        ]
      }
    ]
  }
}

Changes and file

Changes

  1. 0.1.0 First version.

Schema file

Show the JSON Schema
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://opendevelopmentstandards.org/schema/1.0.0-rc.2/core/Document.json",
  "title": "Document",
  "description": "A document: one ODS file. It holds the four pillars and the files their records point at. Every producer writes this shape.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "minLength": 1,
      "description": "The record's id: unique within the document."
    },
    "name": {
      "type": "string",
      "description": "The name people use for the document."
    },
    "description": {
      "type": "string",
      "description": "What the document holds, in words."
    },
    "odsVersion": {
      "type": "string",
      "description": "The ODS release the document follows, such as 1.0.0. Each schema's $id names it.",
      "pattern": "^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)(-[0-9A-Za-z.-]+)?$"
    },
    "generatedAt": {
      "type": "string",
      "format": "date-time",
      "description": "When the document was made."
    },
    "producer": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "description": "The software's name.",
          "minLength": 1
        },
        "version": {
          "type": "string",
          "description": "Its version."
        }
      },
      "required": [
        "name"
      ],
      "description": "The software that made the document.",
      "patternProperties": {
        "^x-": {}
      },
      "unevaluatedProperties": false
    },
    "sharing": {
      "type": "string",
      "enum": [
        "open",
        "approved",
        "local"
      ],
      "description": "Where the document's contents may go. A reader and every service it connects to follow it.",
      "x-ods-options": [
        {
          "value": "open",
          "title": "Open",
          "description": "Anywhere."
        },
        {
          "value": "approved",
          "title": "Approved",
          "description": "Only to services the reader approves."
        },
        {
          "value": "local",
          "title": "Local",
          "description": "Nowhere: the contents stay on the reader's device."
        }
      ]
    },
    "risk": {
      "$ref": "Risk.json"
    },
    "context": {
      "$ref": "Context.json"
    },
    "environment": {
      "$ref": "Environment.json"
    },
    "methodology": {
      "$ref": "Methodology.json"
    },
    "files": {
      "type": "array",
      "items": {
        "$ref": "File.json"
      },
      "description": "The files that records point at."
    }
  },
  "required": [
    "odsVersion"
  ],
  "patternProperties": {
    "^x-": {}
  },
  "unevaluatedProperties": false,
  "examples": [
    {
      "odsVersion": "1.0.0-rc.2"
    },
    {
      "odsVersion": "1.0.0-rc.2",
      "context": {
        "features": [
          {
            "id": "feature-wellsite",
            "name": "Wellsite 04-12",
            "sources": [
              {
                "id": "source-compressor",
                "name": "Compressor package"
              }
            ]
          }
        ]
      }
    },
    {
      "id": "document-0412",
      "name": "Wellsite 04-12 night-time noise assessment",
      "odsVersion": "1.0.0-rc.2",
      "generatedAt": "2026-07-24T18:00:00Z",
      "producer": {
        "name": "Example Producer",
        "version": "1.2.0"
      },
      "sharing": "approved",
      "risk": {
        "frameworks": [
          {
            "id": "framework-d038",
            "name": "Directive 038: Noise Control",
            "issuer": "stakeholder-aer",
            "jurisdiction": "jurisdiction-ab",
            "edition": "April 2024",
            "citation": {
              "title": "Directive 038: Noise Control",
              "url": "https://www.aer.ca/regulating-development/rules-and-directives/directives/directive-038"
            },
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              {
                "id": "period-night",
                "name": "Nighttime",
                "timeZone": "America/Edmonton",
                "windows": [
                  {
                    "start": "22:00",
                    "end": "07:00"
                  }
                ]
              }
            ],
            "variables": [
              {
                "id": "variable-bsl",
                "name": "Basic sound level",
                "value": {
                  "amount": 40,
                  "unit": "dB"
                }
              }
            ],
            "policies": [
              {
                "id": "policy-noise",
                "name": "Noise at dwellings",
                "type": "objective"
              }
            ]
          }
        ]
      },
      "context": {
        "stakeholders": [
          {
            "id": "stakeholder-operator",
            "name": "Example Energy Ltd.",
            "type": "organization"
          },
          {
            "id": "stakeholder-aer",
            "name": "Alberta Energy Regulator",
            "type": "organization",
            "identifiers": [
              {
                "scheme": "ca.ab.aer_ba_code",
                "value": "A0001"
              }
            ]
          },
          {
            "id": "stakeholder-consultant",
            "name": "Example Acoustics Inc.",
            "type": "organization"
          },
          {
            "id": "stakeholder-lab",
            "name": "Example Calibration Laboratory",
            "type": "organization"
          }
        ],
        "jurisdictions": [
          {
            "id": "jurisdiction-ca",
            "name": "Canada",
            "type": "country",
            "identifiers": [
              {
                "scheme": "iso_3166_1",
                "value": "CA"
              }
            ]
          },
          {
            "id": "jurisdiction-ab"
          }
        ],
        "permits": [
          {
            "id": "permit-wellsite",
            "name": "Well licence 0512345",
            "type": "licence",
            "issuer": "stakeholder-aer",
            "holder": "stakeholder-operator",
            "jurisdiction": "jurisdiction-ab",
            "status": "active",
            "effective": {
              "start": "2026-05-04T00:00:00-06:00"
            },
            "features": [
              "feature-wellsite"
            ],
            "identifiers": [
              {
                "scheme": "ca.ab.aer_licence",
                "value": "0512345"
              }
            ]
          }
        ],
        "projects": [
          {
            "id": "project-0412",
            "name": "Wellsite 04-12 compressor",
            "features": [
              "feature-wellsite",
              "feature-dwelling"
            ],
            "activities": [
              {
                "id": "activity-operation",
                "name": "Operation",
                "type": "operation"
              }
            ]
          }
        ],
        "features": [
          {
            "id": "feature-wellsite",
            "location": {
              "point": {
                "type": "Point",
                "coordinates": [
                  -113.815,
                  52.268,
                  912.4
                ]
              },
              "crs": {
                "code": "EPSG:4617",
                "name": "NAD83(CSRS)",
                "verticalDatum": "CGVD2013",
                "verticalCode": "EPSG:6647",
                "coordinateEpoch": 2010
              },
              "absoluteHeight": 912.4,
              "positioning": {
                "method": "gnss_rtk",
                "horizontalAccuracy": 0.02,
                "verticalAccuracy": 0.03,
                "confidenceLevel": 95,
                "determinedAt": "2026-07-02T10:15:00-06:00"
              },
              "geographicIdentifiers": [
                {
                  "type": "legal_land_description",
                  "scheme": "ca.dls",
                  "value": "04-12-038-27W4"
                }
              ],
              "linearReference": {
                "line": "feature-pipeline",
                "distance": {
                  "amount": 12.4,
                  "unit": "km"
                }
              }
            },
            "geometry": {
              "type": "Polygon",
              "coordinates": [
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                  ],
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                  ],
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                  ],
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                  ],
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                ]
              ],
              "positioning": {
                "method": "surveyed",
                "horizontalAccuracy": 0.05,
                "confidenceLevel": 95
              },
              "original": {
                "file": "file-site-plan",
                "layer": "lease_boundary",
                "feature": "17",
                "geometryType": "CurvePolygon",
                "crs": {
                  "code": "EPSG:3402"
                },
                "changes": [
                  {
                    "type": "curves_linearized",
                    "tolerance": 0.01
                  },
                  {
                    "type": "reprojected"
                  }
                ]
              }
            },
            "sources": [
              {
                "id": "source-compressor",
                "name": "Compressor package",
                "type": "compressor",
                "location": {
                  "point": {
                    "type": "Point",
                    "coordinates": [
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                      52.2683
                    ]
                  },
                  "relativeHeight": 3.5
                },
                "properties": [
                  {
                    "type": "rated_power",
                    "value": {
                      "amount": 1000,
                      "unit": "kW"
                    }
                  }
                ],
                "operatingStates": [
                  {
                    "id": "state-loaded",
                    "name": "Loaded",
                    "type": "full_load"
                  },
                  {
                    "id": "state-idle",
                    "name": "Idle",
                    "type": "idle"
                  }
                ],
                "emissions": [
                  {
                    "id": "emission-loaded",
                    "type": "sound_power_level",
                    "state": "state-loaded",
                    "value": {
                      "amount": 102,
                      "unit": "dB"
                    }
                  }
                ]
              }
            ]
          },
          {
            "id": "feature-dwelling",
            "name": "Dwelling 450 m north-east",
            "type": "building",
            "receptorClass": "dwelling",
            "location": {
              "point": {
                "type": "Point",
                "coordinates": [
                  -113.8104,
                  52.2709
                ]
              },
              "relativeHeight": 1.5
            }
          },
          {
            "id": "feature-wellsite-2",
            "name": "Wellsite 04-13",
            "type": "site"
          },
          {
            "id": "feature-pipeline",
            "name": "Gathering pipeline",
            "type": "other",
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            }
          }
        ],
        "instruments": [
          {
            "id": "instrument-slm"
          },
          {
            "id": "instrument-microphone",
            "name": "Microphone 1",
            "type": "microphone"
          }
        ]
      },
      "environment": {
        "weather": [
          {
            "id": "weather-2026-07-14T22",
            "name": "Night of 14 July, 22:00",
            "location": {
              "point": {
                "type": "Point",
                "coordinates": [
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                ]
              }
            },
            "interval": {
              "start": "2026-07-14T22:00:00-06:00",
              "duration": "PT1H"
            },
            "properties": [
              {
                "type": "air_temperature",
                "value": {
                  "amount": 16.5,
                  "unit": "degC"
                }
              },
              {
                "type": "relative_humidity",
                "value": {
                  "amount": 71,
                  "unit": "%"
                }
              },
              {
                "type": "wind_speed",
                "value": {
                  "amount": [
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                    3.1,
                    4.6
                  ],
                  "unit": "m/s",
                  "axes": [
                    {
                      "quantity": "height",
                      "unit": "m",
                      "values": [
                        10,
                        50,
                        120
                      ]
                    }
                  ]
                }
              },
              {
                "type": "wind_direction",
                "value": {
                  "amount": 225,
                  "unit": "deg"
                }
              }
            ],
            "origin": {
              "tier": "reanalysis",
              "provider": "Copernicus Climate Data Store",
              "model": "ERA5"
            }
          }
        ]
      },
      "methodology": {
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            "id": "algorithm-iso9613",
            "name": "ISO 9613-2 engine",
            "type": "calculation",
            "version": "4.2.0",
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            "standard": {
              "title": "ISO 9613-2:2024",
              "edition": "2024"
            },
            "mode": "Downwind conditions, with the meteorological correction of 7.3",
            "validations": [
              "evidence-conformance"
            ]
          }
        ],
        "flows": [
          {
            "id": "flow-d038",
            "name": "Directive 038 compliance",
            "version": "3",
            "frameworks": [
              "framework-d038"
            ],
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              {
                "id": "step-1",
                "type": "entrypoint"
              },
              {
                "id": "step-ask-hours",
                "type": "question",
                "label": "How many hours a day does the compressor run?",
                "question": {
                  "answerType": "number",
                  "unit": "h"
                },
                "outputs": [
                  {
                    "name": "hours_per_day",
                    "unit": "h",
                    "valueType": "number"
                  }
                ]
              },
              {
                "id": "step-propagation",
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                  {
                    "name": "sources",
                    "valueType": "list"
                  },
                  {
                    "name": "receptors",
                    "valueType": "list"
                  }
                ],
                "outputs": [
                  {
                    "name": "receptor_levels",
                    "quantity": "a_weighted_sound_pressure_level",
                    "unit": "dB",
                    "valueType": "list"
                  }
                ]
              },
              {
                "id": "step-compare",
                "type": "decision",
                "name": "Compare with the permissible sound level"
              },
              {
                "id": "step-mitigation",
                "type": "outcome",
                "name": "Mitigation needed"
              }
            ],
            "edges": [
              {
                "from": "step-1",
                "to": "step-ask-hours"
              },
              {
                "from": "step-ask-hours",
                "to": "step-propagation"
              },
              {
                "from": "step-propagation",
                "to": "step-compare"
              },
              {
                "id": "edge-over-limit",
                "from": "step-compare",
                "to": "step-mitigation",
                "label": "Over the limit",
                "when": {
                  "operation": "greater",
                  "arguments": [
                    {
                      "variable": "night_level"
                    },
                    {
                      "variable": "variable-night-psl"
                    }
                  ]
                }
              }
            ]
          }
        ],
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            "id": "assumption-downwind",
            "name": "Downwind at night",
            "subject": "feature-dwelling",
            "properties": [
              {
                "type": "wind_speed",
                "value": {
                  "amount": 2,
                  "unit": "m/s"
                }
              }
            ],
            "basis": "The directive asks for the worst case, which is downwind with a light wind.",
            "citation": {
              "title": "Directive 038: Noise Control",
              "section": "Appendix 2"
            }
          }
        ],
        "evidence": [
          {
            "id": "evidence-night-survey",
            "name": "Night survey at the dwelling",
            "type": "measurement",
            "subject": "feature-dwelling",
            "observed": "a_weighted_sound_pressure_level",
            "result": {
              "amount": 37.8,
              "unit": "dB",
              "statistic": {
                "type": "energy_mean"
              },
              "averaging": "PT9H"
            },
            "interval": {
              "start": "2026-07-14T22:00:00-06:00",
              "end": "2026-07-15T07:00:00-06:00"
            },
            "instrument": "instrument-slm",
            "state": "state-loaded",
            "conditions": [
              "weather-2026-07-14T22"
            ],
            "links": [
              {
                "type": "reference",
                "target": "file-recording-1",
                "targetType": "File",
                "role": "recording"
              }
            ]
          },
          {
            "id": "evidence-predicted-night",
            "name": "Predicted night level at the dwelling",
            "type": "calculation",
            "subject": "feature-dwelling",
            "observed": "a_weighted_sound_pressure_level",
            "result": {
              "amount": 36.4,
              "unit": "dB"
            },
            "algorithm": "algorithm-iso9613",
            "trace": "trace-0412-night",
            "state": "state-loaded",
            "conditions": [
              "weather-2026-07-14T22"
            ]
          },
          {
            "id": "evidence-sound-power",
            "name": "Compressor sound power test",
            "type": "measurement",
            "subject": "source-compressor",
            "observed": "sound_power_level",
            "result": {
              "amount": 102,
              "unit": "dB"
            },
            "state": "state-loaded"
          },
          {
            "id": "evidence-conformance",
            "name": "ISO/TR 17534-3 test cases",
            "type": "validation",
            "algorithm": "algorithm-iso9613"
          }
        ],
        "traces": [
          {
            "id": "trace-0412-night",
            "flow": "flow-d038",
            "flowVersion": "3",
            "framework": "framework-d038",
            "status": "completed",
            "startedAt": "2026-07-20T16:02:11Z",
            "endedAt": "2026-07-20T16:02:19Z",
            "agents": [
              {
                "agent": "stakeholder-consultant",
                "role": "author"
              },
              {
                "agent": "algorithm-iso9613",
                "role": "engine"
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            ],
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              "feature-dwelling",
              "weather-2026-07-14T22"
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              "basis": "Every dwelling meets the night-time permissible sound level."
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          }
        ],
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          {
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            "authors": [
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            ],
            "issuedAt": "2026-07-24T18:00:00Z",
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              }
            ]
          }
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      },
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          "id": "file-site-plan",
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          "path": "files/site-plan.gpkg",
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  "x-ods-changes": {
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}