{"version":"ew-v4","previousDecisions":[{"sourceVersion":"ew-v1","decisions":{"version":"ew-v1","decisions":[{"family":"Census 2021","decision":"Combined","reason":"Common census day, geography, categories and within-table denominators. Disclosure control can cause differences across table totals; no cross-table rescaling. Frozen Nomis bulk edition, not certified latest API revision."},{"family":"Deprivation","decision":"Deferred","reason":"Do not combine national IMD/WIMD ranks. Raw component comparability has not been established. Overall IMD/living environment excluded due to outcome overlap."},{"family":"Road layout","decision":"Combined","reason":"Same April 2026 OS release and full-resolution ONS boundary allocation. Restricted/private physical roads included; no claim of public-road mileage."},{"family":"Frost","decision":"Provisional combined","reason":"Same public 2 km climatology and road weights; source-only eligibility at >=99% road coverage. Full master retained. Annual weather and latest 1 km upgrade absent."},{"family":"Traffic, terrain, claimants, activity and other weather","decision":"Deferred","reason":"See individual feature dictionary for the unresolved source, definition or national allocation gate."},{"family":"Geography changes","decision":"Exact 2021 geography","reason":"No historical code interpolation in this release. UTLA2023 retained as labelled. Future crosswalks must redistribute counts/weights and recalculate raw rates, never average deciles."}]}},{"sourceVersion":"ew-v2","decisions":{"version":"ew-v2","decisions":[{"family":"Census","decision":"Combined; exact original TS045 edition retained","reason":"Same source categories and within-table denominators across both countries; TS045 version 2, TS058/TS061 version 1. Census disclosure-control differences retained. No latest-revision claim."},{"family":"DfT connectivity","decision":"Combined separately by mode","reason":"Workbook time period Q4 2024 takes precedence over the ambiguous 2021-data statement in the guidance. 2021 is the geography. Mixed inputs include Q1 2025 destinations, BRES 2023 and NTS 2011–2020. Public release 2025-09-29, not available at 2022–2024 forecast origins."},{"family":"Published scores","decision":"Use four Overall(mode) columns, not Overall sustainable composite","reason":"Preserve numeric office:value precision; recompute this registry’s combined national bands from scores, not provider decile labels. Not observed flow."},{"family":"DfT reuse","decision":"Published aggregate scores under GOV.UK publication OGL terms","reason":"GOV.UK publication and landing page state OGL v3 except identified third-party material. Workbook license field says TBA; retained as a metadata discrepancy. Only published aggregate scores are reused; underlying proprietary network/timetable data are not redistributed."}]}},{"sourceVersion":"ew-v3","decisions":{"version":"ew-v3","decisions":{"heat":"Exact >=25 and >=30 await registered CEDA daily files. Supporting >25 normal separate; >=99% road coverage.","air":"Annual assessed 1 km grids; >=99% mapped-road coverage; 2025 model break.","crime":"36 complete own-force months, no contradictory ID allocation for raw rate; national bands withheld.","speed":">=95% classified eligible road length for raw values; only 1,547 areas eligible, heavily urban; national bands withheld; authority validation outstanding.","insolvency":"Official 2025 authority rates and LAD mapping; inherited context, adult denominator provisional."},"temporalUse":"2025 air/insolvency and 2026 roads/crime editions are retrospective context for prior collision years, not historical as-of forecasts. No prospective 2022 claim.","activity":"DfT count-point audit retained. No national pedestrian/cyclist flow deciles inferred from sample counters, commuting or accessibility.","authoritySensitivity":{"purpose":"Compare one-LSOA-one-weight bands against one-source-reporting-area-one-weight bands; this is a descriptive geography-weight sensitivity, not an accident model.","reportingAreas":316,"cutoffs":{"bankruptcy_la":[0.965661091583298,1.1087430549567,1.23943894730319,1.35073737981507,1.4898285342796,1.64378018865539,1.7627487128262,1.97882655585238,2.2613299280365],"insolvency_la":[16.2566542540725,20.0680606140827,22.0397368292165,23.6774545406175,25.3445089453464,26.8105209673409,29.8184755749857,32.5906532975264,36.2595976994716]},"changedAuthorityBands":{"bankruptcy_la":120,"insolvency_la":31},"changedLsoaBands":{"bankruptcy_la":13272,"insolvency_la":3487},"file":"inputs/insolvency-authority-sensitivity.csv.gz"}}}],"finalDecision":"Definitions and stored national assignments unchanged. All coverage limitations and source-vintage restrictions remain; E8 adds complete rurality summaries and an explicit release decision, not new source values."}