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Climate counts per year; rainfall intensity per wet day >=1mm within grid before road weighting.", "sourceStatus": "acquired_exact_publisher_normal", "nationalRows": 35672, "numericLSOAs": 35365, "measurementGatePassed": true, "measurementGate": true, "measurementGateReason": "passed_exact_definition_grid_and_road_join", "valueOrigin": "estimated_grid_normal", "nationalBandDecision": "F6 must independently apply national, group and worst-case missing-rank gates", "sourceIds": [ "00244a91df4e45c696f37451f17d7a05" ], "sourceUrl": "https://services.arcgis.com/Lq3V5RFuTBC9I7kv/arcgis/rest/services/Annual_Count_of_10mm_Rain_Days_1991_2020/FeatureServer/0", "blockers": [ "307 LSOAs fail the 99% road-coverage requirement and remain unavailable. Exact source and geometry gates passed; F6 national missing-rank sensitivity and concentrated-missingness review pending." ], "nextAction": "Apply F6 national coverage and missing-rank sensitivity gates.", "historicalAsOf2022Eligible": false, "temporalUse": "Retrospective static climate context only; source edition/band availability not backdated. No observed future-year weather in a pre-year score.", "note": "HadUK station-interpolated climate estimate, road-length weighted. Exact source threshold and 1991-2020 period preserved; missing road coverage remains unavailable. Higher value is more weather exposure, not established collision risk.", "predictiveValidation": false }, "rain_intensity": { "id": "rain_intensity", "label": "Road-weighted wet-day rainfall intensity", "family": "Weather", "unit": "mm/wet day", "definition": "Sum rainfall on days >=1mm / number of days >=1mm, pooled over 1991-2020 within grid; then road weighted", "observationPeriod": "1991-2020", "denominatorDefinition": "Covered mapped road metres; >=99% of all frozen mapped physical road length per LSOA required. Climate counts per year; rainfall intensity per wet day >=1mm within grid before road weighting.", "sourceStatus": "blocked_source_access", "nationalRows": 35672, "numericLSOAs": 0, "measurementGatePassed": false, "measurementGate": false, "measurementGateReason": "failed_exact_source_not_acquired", "valueOrigin": "unavailable", "nationalBandDecision": "withheld", "sourceIds": [ "HadUK-Grid v1.3.2.ceda" ], "sourceUrl": "https://catalogue.ceda.ac.uk/uuid/789b3065d74a4c948ab05d33556c86d0/", "blockers": [ "Exact authorised CEDA inputs not acquired; registered-user authentication required.", "New 1km road/grid intersections required before optional NetCDF grid outputs can enter LSOA lookup." ], "nextAction": "Supply lawfully downloaded pinned CEDA files and per-file provenance manifest, prepare exact grids, then calculate and validate 1km road intersections.", "historicalAsOf2022Eligible": false, "temporalUse": "Retrospective static climate context only; source edition/band availability not backdated. No observed future-year weather in a pre-year score.", "note": "HadUK station-interpolated climate estimate, road-length weighted. Exact source threshold and 1991-2020 period preserved; missing road coverage remains unavailable. Higher value is more weather exposure, not established collision risk.", "predictiveValidation": false }, "snow_lying": { "id": "snow_lying", "label": "Road-weighted snow-lying days", "family": "Weather", "unit": "days/year", "definition": "Publisher annual mean count of days with >50% ground covered by snow at 0900 UTC; 1991-2020", "observationPeriod": "1991-2020", "denominatorDefinition": "Covered mapped road metres; >=99% of all frozen mapped physical road length per LSOA required. Climate counts per year; rainfall intensity per wet day >=1mm within grid before road weighting.", "sourceStatus": "blocked_source_access", "nationalRows": 35672, "numericLSOAs": 0, "measurementGatePassed": false, "measurementGate": false, "measurementGateReason": "failed_exact_source_not_acquired", "valueOrigin": "unavailable", "nationalBandDecision": "withheld", "sourceIds": [ "HadUK-Grid v1.3.2.ceda" ], "sourceUrl": "https://catalogue.ceda.ac.uk/uuid/789b3065d74a4c948ab05d33556c86d0/", "blockers": [ "Exact authorised CEDA inputs not acquired; registered-user authentication required.", "New 1km road/grid intersections required before optional NetCDF grid outputs can enter LSOA lookup." ], "nextAction": "Supply lawfully downloaded pinned CEDA files and per-file provenance manifest, prepare exact grids, then calculate and validate 1km road intersections.", "historicalAsOf2022Eligible": false, "temporalUse": "Retrospective static climate context only; source edition/band availability not backdated. No observed future-year weather in a pre-year score.", "note": "HadUK station-interpolated climate estimate, road-length weighted. Exact source threshold and 1991-2020 period preserved; missing road coverage remains unavailable. Higher value is more weather exposure, not established collision risk.", "predictiveValidation": false } }, "annualWeather": { "yearsRequested": [ 2022, 2023, 2024, 2025 ], "yearsAcquired": [], "status": "blocked_exact_full_calendar_sources", "role": "Separate same-year explanatory diagnostics, never future weather in pre-year prediction." }, "output": { "file": "inputs/f5-features.csv.gz", "rows": 178360, "features": [ "heat_days_25", "heat_days_30", "heavy_rain", "rain_intensity", "snow_lying" ], "nationalLSOAs": 35672, "nullPolicy": "Unavailable values remain blank; never zero or middle-band imputation." } }