{"version":"ew-v2","features":[{"id":"no_qualifications","label":"No qualifications","family":"Socio-demographic","source":"ts067","numerator":[4],"denominator":[3],"unit":"%","role":"candidate","note":"Residents aged 16+. Not age-adjusted; age composition is a separate control.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Highest level of qualification: No qualifications","weight":1}],"denominatorColumns":["Highest level of qualification: Total: All usual residents aged 16 years and over"],"releasedAt":"2023-01-10T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts067.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"level4_qualifications","label":"Level 4+ qualifications","family":"Socio-demographic","source":"ts067","numerator":[9],"denominator":[3],"unit":"%","role":"candidate","note":"","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Highest level of qualification: Level 4 qualifications and above","weight":1}],"denominatorColumns":["Highest level of qualification: Total: All usual residents aged 16 years and over"],"releasedAt":"2023-01-10T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts067.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"social_rented","label":"Social rented households","family":"Socio-demographic","source":"ts054","numerator":[10,11],"denominator":[3],"unit":"%","role":"candidate","note":"Council plus other social rent; do not add their parent category again.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Tenure of household: Social rented: Rents from council or Local Authority","weight":1},{"column":"Tenure of household: Social rented: Other social rented","weight":1}],"denominatorColumns":["Tenure of household: Total: All households"],"releasedAt":"2023-01-06T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts054.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"private_rented","label":"Private rented households","family":"Socio-demographic","source":"ts054","numerator":[12],"denominator":[3],"unit":"%","role":"candidate","note":"","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Tenure of household: Private rented","weight":1}],"denominatorColumns":["Tenure of household: Total: All households"],"releasedAt":"2023-01-06T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts054.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"owner_occupied","label":"Owner occupied households","family":"Socio-demographic","source":"ts054","numerator":[4],"denominator":[3],"unit":"%","role":"candidate","note":"Owned outright or with mortgage; shared ownership excluded. Tenure shares are dependent.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Tenure of household: Owned","weight":1}],"denominatorColumns":["Tenure of household: Total: All households"],"releasedAt":"2023-01-06T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts054.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"overcrowded_bedrooms","label":"Overcrowded households","family":"Socio-demographic","source":"ts052","numerator":[7,8],"denominator":[3],"unit":"%","role":"candidate","note":"Bedroom occupancy rating -1 or -2 or less. Household denominator.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Occupancy rating for bedrooms: Occupancy rating of bedrooms: -1","weight":1},{"column":"Occupancy rating for bedrooms: Occupancy rating of bedrooms: -2 or less","weight":1}],"denominatorColumns":["Occupancy rating for bedrooms: Total: All households"],"releasedAt":"2023-01-06T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts052.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"unemployment","label":"Unemployment among economically active adults","family":"Socio-demographic","source":"ts066","numerator":[15,27],"denominator":[4,16],"unit":"%","role":"candidate","note":"Includes economically active full-time students in numerator and denominator. Census lockdown-era measure.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Economic activity status: Economically active (excluding full-time students): Unemployed","weight":1},{"column":"Economic activity status: Economically active and a full-time student: Unemployed","weight":1}],"denominatorColumns":["Economic activity status: Economically active (excluding full-time students)","Economic activity status: Economically active and a full-time student"],"releasedAt":"2022-12-08T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts066.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"terraced","label":"Terraced housing","family":"Housing and vehicles","source":"ts044","numerator":[6],"denominator":[3],"unit":"%","role":"candidate","note":"Housing context; not measured on-street parking.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Accommodation type: Terraced","weight":1}],"denominatorColumns":["Accommodation type: Total: All households"],"releasedAt":"2023-01-06T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts044.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"flats","label":"Flats and converted/commercial accommodation","family":"Housing and vehicles","source":"ts044","numerator":[7,8,9,10],"denominator":[3],"unit":"%","role":"candidate","note":"Purpose-built, converted/shared houses, converted buildings and commercial buildings. Not observed garaging.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Accommodation type: In a purpose-built block of flats or tenement","weight":1},{"column":"Accommodation type: Part of a converted or shared house, including bedsits","weight":1},{"column":"Accommodation type: Part of another converted building, for example, former school, church or warehouse","weight":1},{"column":"Accommodation type: In a commercial building, for example, in an office building, hotel or over a shop","weight":1}],"denominatorColumns":["Accommodation type: Total: All households"],"releasedAt":"2023-01-06T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts044.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"no_car","label":"Households without a car or van","family":"Housing and vehicles","source":"ts045","numerator":[4],"denominator":[3],"unit":"%","role":"candidate","note":"Household availability, not distance driven.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Number of cars or vans: No cars or vans in household","weight":1}],"denominatorColumns":["Number of cars or vans: Total: All households"],"releasedAt":"2023-01-06T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts045.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"cars_per_household_lower_bound","label":"Cars/vans per household · lower bound","family":"Housing and vehicles","source":"ts045","numerator":[[5,1],[6,2],[7,3]],"denominator":[3],"unit":"vehicles/household","role":"candidate","note":"Top-coded 3+ category is assigned 3. This is a lower bound, not an exact vehicle count.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Number of cars or vans: 1 car or van in household","weight":1},{"column":"Number of cars or vans: 2 cars or vans in household","weight":2},{"column":"Number of cars or vans: 3 or more cars or vans in household","weight":3}],"denominatorColumns":["Number of cars or vans: Total: All households"],"releasedAt":"2023-01-06T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts045.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"population_density","label":"Population density","family":"Baseline controls","source":"ts006","numerator":[3],"denominator":[],"unit":"people/km²","role":"control","note":"","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Population Density: Persons per square kilometre; measures: Value","weight":1}],"denominatorColumns":[],"releasedAt":"2022-12-13T00:00:00.000Z","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts006.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); 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nationwide allocation audit pending"},{"id":"age65_plus","label":"Residents aged 65+","family":"Baseline controls","source":"ts007a","numerator":[17,18,19,20,21],"denominator":[3],"unit":"%","role":"control","note":"","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Age: Aged 65 to 69 years","weight":1},{"column":"Age: Aged 70 to 74 years","weight":1},{"column":"Age: Aged 75 to 79 years","weight":1},{"column":"Age: Aged 80 to 84 years","weight":1},{"column":"Age: Aged 85 years and over","weight":1}],"denominatorColumns":["Age: Total"],"releasedAt":null,"sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts007a.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"age0_14","label":"Residents aged 0–14","family":"Baseline controls","source":"ts007a","numerator":[4,5,6],"denominator":[3],"unit":"%","role":"control","note":"","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2021-03-21","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","numeratorColumns":[{"column":"Age: Aged 4 years and under","weight":1},{"column":"Age: Aged 5 to 9 years","weight":1},{"column":"Age: Aged 10 to 14 years","weight":1}],"denominatorColumns":["Age: Total"],"releasedAt":null,"sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts007a.zip","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"motorway_share","label":"Motorway share of mapped road length","family":"Road layout","source":"os-roads","numerator":["motorwayMetres"],"denominator":["roadMetres"],"unit":"%","role":"control","note":"Zero group plus positive-value deciles. Physical road length, not mileage.","status":"complete","zeroBand":true,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2026-04","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","sourceUrl":"https://api.os.uk/downloads/v1/products/OpenRoads/downloads?area=GB&format=ESRI%C2%AE+Shapefile&redirect","releasedAt":null,"validCount":35672,"missingCount":0,"bandScheme":"Zero + positive deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); sensitivity required"},{"id":"a_road_share","label":"A-road share of mapped road length","family":"Road layout","source":"os-roads","numerator":["aRoadMetres"],"denominator":["roadMetres"],"unit":"%","role":"control","note":"Zero group plus positive-value deciles. OS function field.","status":"complete","zeroBand":true,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2026-04","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","sourceUrl":"https://api.os.uk/downloads/v1/products/OpenRoads/downloads?area=GB&format=ESRI%C2%AE+Shapefile&redirect","releasedAt":null,"validCount":35672,"missingCount":0,"bandScheme":"Zero + positive deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); sensitivity required"},{"id":"minor_road_share","label":"Minor/local share of mapped road length","family":"Road layout","source":"os-roads","numerator":["minorMetres"],"denominator":["roadMetres"],"unit":"%","role":"control","note":"B, minor, local and access-road functions, including restricted access. Not traffic-weighted.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2026-04","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","sourceUrl":"https://api.os.uk/downloads/v1/products/OpenRoads/downloads?area=GB&format=ESRI%C2%AE+Shapefile&redirect","releasedAt":null,"validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); sensitivity required"},{"id":"junction_density","label":"Junctions per mapped road kilometre","family":"Road layout","source":"os-roads","numerator":["junctions"],"denominator":["roadMetres"],"unit":"junctions/km","role":"candidate","note":"OS junction nodes only. Pseudo nodes, road ends and roundabout nodes excluded.","status":"complete","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2026-04","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","sourceUrl":"https://api.os.uk/downloads/v1/products/OpenRoads/downloads?area=GB&format=ESRI%C2%AE+Shapefile&redirect","releasedAt":null,"validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); sensitivity required"},{"id":"roundabout_density","label":"Roundabout nodes per mapped road kilometre","family":"Road layout","source":"os-roads","numerator":["roundabouts"],"denominator":["roadMetres"],"unit":"nodes/km","role":"candidate","note":"OS roundabout node count; zero group plus positive-value deciles. Not a manually audited roundabout inventory.","status":"complete","zeroBand":true,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2026-04","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","sourceUrl":"https://api.os.uk/downloads/v1/products/OpenRoads/downloads?area=GB&format=ESRI%C2%AE+Shapefile&redirect","releasedAt":null,"validCount":35672,"missingCount":0,"bandScheme":"Zero + positive deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); sensitivity required"},{"id":"road_sinuosity","label":"Mapped road sinuosity","family":"Road layout","source":"os-roads","numerator":["sinuosityWeightedMetres"],"denominator":["sinuosityEligibleMetres"],"unit":"ratio","role":"candidate","note":"Length-weighted full-link length/endpoint distance, excluding closed and roundabout links. Generalised geometry proxy; not bend radius.","status":"provisional","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"2026-04","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","sourceUrl":"https://api.os.uk/downloads/v1/products/OpenRoads/downloads?area=GB&format=ESRI%C2%AE+Shapefile&redirect","releasedAt":null,"validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); sensitivity required"},{"id":"air_frost_normal","label":"Road-weighted air-frost days","family":"Weather","source":"metoffice-frost","numerator":["frostWeightedMetres"],"denominator":["frostCoveredMetres"],"unit":"days/year","role":"candidate","note":"1991–2020 normal, public 2 km HadUK-Grid v1.1.0.0. At least 99% mapped road coverage. Not road ice or annual 2022–2025 weather.","status":"provisional","zeroBand":false,"comparability":"Common source and calculation across England and Wales","direction":"Higher band = higher feature value; collision-risk direction has not been tested","observationPeriod":"1991–2020","geographicResolution":"LSOA2021, England and Wales","licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","sourceUrl":"https://www.arcgis.com/home/item.html?id=4d5f49b8e0de4119a4579444aed5f6a0","releasedAt":null,"validCount":35365,"missingCount":307,"bandScheme":"Combined E&W deciles","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"claimant_rate","label":"Lagged Claimant Count rate","family":"Socio-demographic","source":"https://www.nomisweb.co.uk/sources/claimant_count","numerator":[],"denominator":[],"definition":"Claimants / matched working-age population","unit":"not yet frozen","role":"candidate","note":"Small-area series, revisions, definition and matched denominator not yet frozen for both countries.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"monthly; target forecast origin minus publication lag","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.nomisweb.co.uk/sources/claimant_count","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"claimant_change","label":"12-month Claimant Count change","family":"Socio-demographic","source":"https://www.nomisweb.co.uk/sources/claimant_count","numerator":[],"denominator":[],"definition":"Percentage-point change in the same claimant rate","unit":"not yet frozen","role":"candidate","note":"Requires the same comparable claimant series and denominator as claimant_rate.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"monthly; lagged 12-month change","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.nomisweb.co.uk/sources/claimant_count","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"income_deprivation","label":"Harmonised income deprivation","family":"Socio-demographic","source":"https://www.gov.wales/welsh-index-multiple-deprivation-wimd-2025-guidance-html","numerator":[],"denominator":[],"definition":"Common benefit coverage / common population denominator","unit":"not yet frozen","role":"candidate","note":"English IMD and Welsh WIMD are not comparable. Benefit coverage, denominators and periods are unreconciled. Native ranks are not pooled.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"edition-specific","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.gov.wales/welsh-index-multiple-deprivation-wimd-2025-guidance-html","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"employment_deprivation","label":"Harmonised employment deprivation","family":"Socio-demographic","source":"https://www.gov.uk/government/statistics/english-indices-of-deprivation-2025","numerator":[],"denominator":[],"definition":"Common eligible claimant count / common working-age denominator","unit":"not yet frozen","role":"candidate","note":"Country-specific constructions unreconciled. Census unemployment is retained as a separate measure, not a replacement deprivation index.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"edition-specific","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.gov.uk/government/statistics/english-indices-of-deprivation-2025","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"road_gradient","label":"Road-weighted gradient","family":"Road layout","source":"https://www.ordnancesurvey.co.uk/products/os-terrain-50","numerator":[],"denominator":[],"definition":"Length-weighted absolute slope","unit":"not yet frozen","role":"candidate","note":"Terrain grid not acquired or bridge/tunnel treatment validated across both countries.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"source edition at forecast origin","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.ordnancesurvey.co.uk/products/os-terrain-50","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); sensitivity required"},{"id":"steep_road_share","label":"Steep-road share","family":"Road layout","source":"https://www.ordnancesurvey.co.uk/products/os-terrain-50","numerator":[],"denominator":[],"definition":"Road length above prespecified gradient / valid road length","unit":"not yet frozen","role":"candidate","note":"Requires terrain, sampling interval and fixed gradient threshold before calculation.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"source edition at forecast origin","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.ordnancesurvey.co.uk/products/os-terrain-50","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"Shared inputs with pilot exposure (population/road/rurality); sensitivity required"},{"id":"hgv_share","label":"HGV traffic share","family":"Traffic and activity","source":"https://roadtraffic.dft.gov.uk/downloads","numerator":[],"denominator":[],"definition":"HGV miles / all-motor miles","unit":"not yet frozen","role":"candidate","note":"National all-road LSOA vehicle-class allocation not validated. Existing major-road counts and regional mileage are insufficient.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"lagged annual","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://roadtraffic.dft.gov.uk/downloads","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"van_share","label":"Van traffic share","family":"Traffic and activity","source":"https://roadtraffic.dft.gov.uk/downloads","numerator":[],"denominator":[],"definition":"LGV miles / all-motor miles","unit":"not yet frozen","role":"candidate","note":"Same national all-road vehicle-mix gap; retain counted/estimated flags.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"lagged annual","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://roadtraffic.dft.gov.uk/downloads","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"motorcycle_share","label":"Motorcycle traffic share","family":"Traffic and activity","source":"https://roadtraffic.dft.gov.uk/downloads","numerator":[],"denominator":[],"definition":"Motorcycle miles / all-motor miles","unit":"not yet frozen","role":"candidate","note":"Same national all-road vehicle-mix gap; collision-involved vehicles must not supply this feature.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"lagged annual","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://roadtraffic.dft.gov.uk/downloads","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"bus_share","label":"Bus and coach traffic share","family":"Traffic and activity","source":"https://roadtraffic.dft.gov.uk/downloads","numerator":[],"denominator":[],"definition":"Bus and coach miles / all-motor miles","unit":"not yet frozen","role":"candidate","note":"Same national all-road vehicle-mix gap.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"lagged annual","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://roadtraffic.dft.gov.uk/downloads","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"flow_intensity","label":"Motor traffic intensity","family":"Traffic and activity","source":"https://roadtraffic.dft.gov.uk/downloads","numerator":[],"denominator":[],"definition":"Motor miles / mapped public-road length / days","unit":"not yet frozen","role":"candidate","note":"National all-road LSOA exposure remains a Phase 3 dependency. Physical OS road length is not a traffic estimate.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"lagged annual","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://roadtraffic.dft.gov.uk/downloads","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"school_density","label":"Schools near roads","family":"Traffic and activity","source":"https://www.gov.wales/addresses-and-phone-numbers-schools-and-pupil-referral-units","numerator":[],"denominator":[],"definition":"Comparable open schools within fixed road buffer / road km","unit":"not yet frozen","role":"candidate","note":"English GIAS and Welsh school extracts not yet harmonised; categories, dates and road buffer remain to be frozen.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"matched English and Welsh editions","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.gov.wales/addresses-and-phone-numbers-schools-and-pupil-referral-units","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"stop_density","label":"Public transport stops near roads","family":"Traffic and activity","source":"https://www.gov.uk/government/publications/national-public-transport-access-node-schema","numerator":[],"denominator":[],"definition":"Eligible active NaPTAN stops within fixed road buffer / road km","unit":"not yet frozen","role":"candidate","note":"Active stop types, duplicates, access points and buffer rule not yet frozen nationally.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"snapshot at forecast origin","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.gov.uk/government/publications/national-public-transport-access-node-schema","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"snow_lying","label":"Road-weighted snow-lying days","family":"Weather","source":"https://www.metoffice.gov.uk/research/climate/maps-and-data/data/haduk-grid/datasets","numerator":[],"denominator":[],"definition":"Road-length-weighted mean days","unit":"not yet frozen","role":"candidate","note":"Required national snow grid has not been acquired. No proxy snow values are substituted.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"lagged observations or prior climatology","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.metoffice.gov.uk/research/climate/maps-and-data/data/haduk-grid/datasets","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"heavy_rain","label":"Road-weighted heavy-rain days","family":"Weather","source":"https://www.metoffice.gov.uk/research/climate/maps-and-data/data/haduk-grid/datasets","numerator":[],"denominator":[],"definition":"Road-length-weighted days above prespecified rainfall threshold","unit":"not yet frozen","role":"candidate","note":"Daily rainfall and threshold not frozen; latest CEDA source acquisition remains open.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"lagged daily observations","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.metoffice.gov.uk/research/climate/maps-and-data/data/haduk-grid/datasets","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"rain_intensity","label":"Road-weighted rainfall intensity","family":"Weather","source":"https://www.metoffice.gov.uk/research/climate/maps-and-data/data/haduk-grid/datasets","numerator":[],"denominator":[],"definition":"Road-length-weighted rainfall","unit":"not yet frozen","role":"candidate","note":"Required rainfall grid not acquired. Same-year explanatory weather must remain distinct from prospective features.","status":"deferred","zeroBand":false,"comparability":"Not established; combined decile withheld","observationPeriod":"lagged observations or prior climatology","direction":"Not assigned","geographicResolution":"LSOA2021, England and Wales","licence":"Expected public-data licence; exact extract terms not yet verified","sourceStatus":"Candidate source identified; national extract not frozen","sourceUrl":"https://www.metoffice.gov.uk/research/climate/maps-and-data/data/haduk-grid/datasets","releasedAt":null,"validCount":0,"missingCount":35672,"bandScheme":"No assignments","sourceVersion":"ew-v1","phase":"Original 1–2","mileageAllocationUse":"No direct use identified in current pilot; nationwide allocation audit pending"},{"id":"multi_car","label":"Households with 2+ cars or vans","family":"Housing and vehicles","source":"ts045","numerator":[6,7],"denominator":[3],"unit":"%","definition":"100 × sum(numerator categories) / sum(denominator categories)","role":"candidate","note":"Includes top-coded 3+ households. Availability, not miles driven.","status":"complete","readiness":"baseline context","measurementType":"Census count-derived share","observationPeriod":"2021-03-21","overlapGroup":"vehicle availability","phase":"E2","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Resident participation, not current travel, hybrid-working frequency or observed road flows. Denominator sums all ten away-from-home travel categories, including passengers and other methods.","status":"complete","readiness":"provisional pandemic travel context","measurementType":"Census count-derived share","observationPeriod":"2021-03-21","overlapGroup":"away-from-home mode shares","phase":"E2","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Resident participation, not current travel, hybrid-working frequency or observed road flows. Straight-line distance. Denominator includes only the eight known distance bands; excludes home/offshore/no fixed place/outside UK.","status":"complete","readiness":"provisional pandemic travel context","measurementType":"Census count-derived share","observationPeriod":"2021-03-21","overlapGroup":"commuting distance","phase":"E2","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":"2022-12-08","frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Open Government Licence v3.0","sourceStatus":"Frozen archived input","releasedAt":"2022-12-08T00:00:00.000Z","extractedAt":"2026-10-12","revision":"1","sourceChecksums":[{"file":"inputs/ts058-lsoa.csv.gz","sha256":"af70baafdb74d23c0eebbf046e5e3ec4856c104d5ec1f5e02c46cb9b03bf4f83","bytes":745516},{"file":"inputs/ts058-metadata.txt","sha256":"34f52def965c7f76d14e6cb3dfeaf5133ab75bb4d35ee8e6878dda2ceb2db7c1","bytes":4744}],"coverageStatus":"complete","sourceUrl":"https://www.nomisweb.co.uk/output/census/2021/census2021-ts058.zip","numeratorColumns":[{"column":"Distance travelled to work: 20km to less than 30km","weight":1},{"column":"Distance travelled to work: 30km to less than 40km","weight":1},{"column":"Distance travelled to work: 40km to less than 60km","weight":1},{"column":"Distance travelled to work: 60km and over","weight":1}],"denominatorColumns":["Distance travelled to work: Less than 2km","Distance travelled to work: 2km to less than 5km","Distance travelled to work: 5km to less than 10km","Distance travelled to work: 10km to less than 20km","Distance travelled to work: 20km to less than 30km","Distance travelled to work: 30km to less than 40km","Distance travelled to work: 40km to less than 60km","Distance travelled to work: 60km and over"],"denominatorDefinition":"Distance travelled to work: Less than 2km + Distance travelled to work: 2km to less than 5km + Distance travelled to work: 5km to less than 10km + Distance travelled to work: 10km to less than 20km + Distance travelled to work: 20km to less than 30km + Distance travelled to work: 30km to less than 40km + Distance travelled to work: 40km to less than 60km + Distance travelled to work: 60km and over","validCount":35672,"missingCount":0,"bandScheme":"Combined E&W deciles"},{"id":"work_from_home","label":"Working mainly at or from home","family":"Commuting baseline","source":"ts061","numerator":[4],"denominator":[3],"unit":"%","definition":"100 × sum(numerator categories) / sum(denominator categories)","role":"candidate","note":"Census 2021 lockdown/furlough context. Resident participation, not current travel, hybrid-working frequency or observed road flows. Denominator is all employed residents aged 16+ in TS061.","status":"complete","readiness":"provisional pandemic travel context","measurementType":"Census count-derived share","observationPeriod":"2021-03-21","overlapGroup":"home working and mode shares","phase":"E2","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Resident participation, not current travel, hybrid-working frequency or observed road flows. Share among residents travelling away from home, not pedestrian pressure in this LSOA.","status":"complete","readiness":"provisional pandemic travel context","measurementType":"Census count-derived share","observationPeriod":"2021-03-21","overlapGroup":"away-from-home mode shares","phase":"E2","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Resident participation, not current travel, hybrid-working frequency or observed road flows. Share among residents travelling away from home, not cyclist pressure in this LSOA.","status":"complete","readiness":"provisional pandemic travel context","measurementType":"Census count-derived share","observationPeriod":"2021-03-21","overlapGroup":"away-from-home mode shares","phase":"E2","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Q4 2024 workbook reference; mixed 2023–2025 inputs and NTS 2011–2020 preferences. Scores from different modes are not directly comparable. Published 29 September 2025.","status":"complete","readiness":"modelled accessibility context","measurementType":"Modelled accessibility","observationPeriod":"Q4 2024 reference; mixed source vintages","overlapGroup":"accessibility and urbanity","phase":"E3","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Q4 2024 workbook reference; mixed 2023–2025 inputs and NTS 2011–2020 preferences. Scores from different modes are not directly comparable. Published 29 September 2025.","status":"complete","readiness":"modelled accessibility context","measurementType":"Modelled accessibility","observationPeriod":"Q4 2024 reference; mixed source vintages","overlapGroup":"accessibility and urbanity","phase":"E3","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Q4 2024 workbook reference; mixed 2023–2025 inputs and NTS 2011–2020 preferences. Scores from different modes are not directly comparable. Published 29 September 2025.","status":"complete","readiness":"modelled accessibility context","measurementType":"Modelled accessibility","observationPeriod":"Q4 2024 reference; mixed source vintages","overlapGroup":"accessibility and urbanity","phase":"E3","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Q4 2024 workbook reference; mixed 2023–2025 inputs and NTS 2011–2020 preferences. Scores from different modes are not directly comparable. Published 29 September 2025.","status":"complete","readiness":"modelled accessibility context","measurementType":"Modelled accessibility","observationPeriod":"Q4 2024 reference; mixed source vintages","overlapGroup":"accessibility and urbanity","phase":"E3","zeroBand":false,"sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"LSOA2021","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Common national source, categories and mode definition","retrospectiveResearchAvailable":true,"historicalForecastEligibility":"Source release is a lower bound only. 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Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Source-derived measure","role":"candidate","zeroBand":false,"overlapGroup":"Weather","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E4","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. 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Full calendar and ≥99% road coverage. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Source-derived measure","role":"candidate","zeroBand":false,"overlapGroup":"Weather","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E4","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"},{"id":"air_no2","label":"Road-weighted NO2","phase":"E4","family":"Air quality","unit":"µg/m³","definition":"Sum road metres × annual assessed NO2 concentration / covered road metres","denominatorDefinition":"Covered mapped road metres","numerator":[],"denominator":[],"source":"Defra assessed 1 km concentrations","sourceUrl":"https://uk-air.defra.gov.uk/data/","observationPeriod":"Annual assessed edition; freeze at E4","note":"Separate assessed values from forecasts; ≥99% road coverage; audit 2025 model-method break. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Modelled environmental estimate","role":"candidate","zeroBand":false,"overlapGroup":"Air quality","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E4","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. 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Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Modelled environmental estimate","role":"candidate","zeroBand":false,"overlapGroup":"Air quality","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E4","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"},{"id":"vehicle_crime","label":"Vehicle-crime intensity","phase":"E5","family":"Crime","unit":"incidents/1,000 households/year","definition":"1000 × trailing 36-month vehicle-crime incidents / 3 / matched households","denominatorDefinition":"Matched households","numerator":[],"denominator":[],"source":"data.police.uk monthly street crime","sourceUrl":"https://data.police.uk/data/","observationPeriod":"Trailing complete 36 months ending before forecast origin","note":"Includes theft of/from vehicles and interference. Not theft-only. Audit every force-month and anonymised geography; no missing reports as zero. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Source-derived measure","role":"candidate","zeroBand":false,"overlapGroup":"Crime","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E5","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. 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Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Source-derived measure","role":"candidate","zeroBand":false,"overlapGroup":"Crime","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E5","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"},{"id":"criminal_damage_arson","label":"Criminal damage and arson intensity","phase":"E5","family":"Crime","unit":"incidents/1,000 residents/year","definition":"1000 × trailing 36-month criminal-damage/arson incidents / 3 / matched residents","denominatorDefinition":"Matched residents","numerator":[],"denominator":[],"source":"data.police.uk monthly street crime","sourceUrl":"https://data.police.uk/data/","observationPeriod":"Trailing complete 36 months ending before forecast origin","note":"Coverage, duplicates and geography audit required; resident denominator is a context proxy. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Source-derived measure","role":"candidate","zeroBand":false,"overlapGroup":"Crime","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E5","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"},{"id":"non_vehicle_crime","label":"Non-vehicle recorded-crime intensity","phase":"E5","family":"Crime","unit":"incidents/1,000 residents/year","definition":"1000 × trailing 36-month crime excluding vehicle crime and anti-social behaviour / 3 / matched residents","denominatorDefinition":"Matched residents","numerator":[],"denominator":[],"source":"data.police.uk monthly street crime","sourceUrl":"https://data.police.uk/data/","observationPeriod":"Trailing complete 36 months ending before forecast origin","note":"Overlaps burglary and damage/arson; handle dependence in joint selection. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Source-derived measure","role":"candidate","zeroBand":false,"overlapGroup":"Crime","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E5","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"},{"id":"speed_le20","label":"Road length at 20 mph or below","phase":"E6","family":"Speed limits","unit":"%","definition":"100 × eligible road length with classified limit ≤20 mph / classified eligible road length","denominatorDefinition":"Classified eligible public motor-road length","numerator":[],"denominator":[],"source":"OSM and highway-authority dated records","sourceUrl":"https://wiki.openstreetmap.org/wiki/Key:maxspeed","observationPeriod":"Dated speed-limit snapshot; freeze at E6","note":"≥95% classified-length gate; retain unknown length and bounds against all eligible roads. Respect Welsh changes from September 2023. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Source-derived measure","role":"candidate","zeroBand":false,"overlapGroup":"Speed limits","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E6","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"},{"id":"speed_le30","label":"Road length at 30 mph or below","phase":"E6","family":"Speed limits","unit":"%","definition":"100 × eligible road length with classified limit ≤30 mph / classified eligible road length","denominatorDefinition":"Classified eligible public motor-road length","numerator":[],"denominator":[],"source":"OSM and highway-authority dated records","sourceUrl":"https://wiki.openstreetmap.org/wiki/Key:maxspeed","observationPeriod":"Dated speed-limit snapshot; freeze at E6","note":"Nested speed share; coverage gate and date-specific limits. No speed imputation from collisions. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Source-derived measure","role":"candidate","zeroBand":false,"overlapGroup":"Speed limits","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Source geography/version pending acquisition","geographicResolution":"LSOA2021, England and Wales","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E6","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"},{"id":"bankruptcy_la","label":"Bankruptcy rate · authority context","phase":"E7","family":"Financial context","unit":"events/10,000 adults/year","definition":"10000 × summed bankruptcy events / summed adult person-years; inherit matching authority rate","denominatorDefinition":"Adult person-years at authority level","numerator":[],"denominator":[],"source":"Insolvency Service","sourceUrl":"https://www.gov.uk/government/collections/individual-insolvency-statistics","observationPeriod":"Lagged annual or three-year window; freeze at E7","note":"No within-authority variation. Retain counts and historical mappings. Ties across LSOAs in each authority remain together. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Inherited local-authority context","role":"candidate","zeroBand":false,"overlapGroup":"Financial context","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Local authority; historical mapping pending","geographicResolution":"Local authority inherited to LSOA2021","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E7","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"},{"id":"insolvency_la","label":"Personal insolvency rate · authority context","phase":"E7","family":"Financial context","unit":"events/10,000 adults/year","definition":"10000 × summed bankruptcy + IVA + DRO events / summed adult person-years; inherit authority rate","denominatorDefinition":"Adult person-years at authority level","numerator":[],"denominator":[],"source":"Insolvency Service","sourceUrl":"https://www.gov.uk/government/collections/individual-insolvency-statistics","observationPeriod":"Lagged annual or three-year window; freeze at E7","note":"Keep bankruptcy/IVA/DRO counts separate. Nested bankruptcy measure. LSOA bands weight each authority by its LSOA count; authority sensitivity required. Source extraction is outside E1–E3; no values assigned.","status":"deferred","readiness":"not acquired","measurementType":"Inherited local-authority context","role":"candidate","zeroBand":false,"overlapGroup":"Financial context","sourceVersion":"ew-v2","direction":"Higher band = higher feature value; no tested collision-risk direction","sourceGeography":"Local authority; historical mapping pending","geographicResolution":"Local authority inherited to LSOA2021","applicability":"All 35,672 master LSOAs; missing denominators remain unavailable","comparability":"Source comparison deferred to E7","retrospectiveResearchAvailable":false,"historicalForecastEligibility":"Source release is a lower bound only. Exact archived edition and national band construction must be evidenced at the forecast origin.","historicalAsOf2022Eligible":false,"availableFrom":null,"frozenBandsAvailableFrom":"2026-10-12","mileageAllocationUse":"Not used by the current regional pilot; future nationwide allocation not audited","exposureSensitivityRequired":true,"licence":"Exact edition/reuse terms require verification before acquisition","sourceStatus":"Deferred; not acquired","releasedAt":null,"extractedAt":null,"revision":null,"sourceChecksums":[],"coverageStatus":"unavailable","validCount":0,"missingCount":35672,"bandScheme":"No assignments"}],"statusDefinition":"Complete = complete calculation and source coverage. Readiness and measurement type describe interpretation separately; no predictive validation.","lookupScope":"23 expansion columns of values/bands/status; join unchanged ew-v1 by lsoa for all 61 candidates"}