Retail co-location tier methodology
editorial(substrate): fix retail-co-location-tier-methodology gate omissions (Track-B) — confirmed against app-orchestration-gis/SCORING-METHODOLOGY.md: 2 real gates were missing entirely (Tier 1's secondary-catchment-population check, Tier 2's consumer-spend-rank requirement), understating the real gate set; kept the existing appropriate abstraction level (no internal field names, no exact IoU radius/thresholds) rather than adding implementation specifics beyond what a public explainer needs, per public-repo-safety-review.md; register-clean EN+ES
@@ -11,7 +11,7 @@ status: active audience: public bcsc_class: public-disclosure-safe language_protocol: PROSE-TOPIC last_edited: 2026-08-01 last_edited: 2026-08-22 editor: pointsav-engineering paired_with: retail-co-location-tier-methodology.es.md cites: @@ -51,18 +51,21 @@ vocabulary. ## What a cluster must clear Every tier requires all of its gates to pass — composition, catchment rank, civic support, and non-overlap: Every tier requires all of its gates to pass — composition, catchment rank, spend rank where it applies, civic support, and non-overlap: - **Composition** — which categories of capital-intensive anchor must co-occur. Regional requires a warehouse-club or lifestyle anchor alongside a hypermarket; District requires a hypermarket alongside hardware or warehouse; Local requires a hardware or warehouse anchor on its own. - **Catchment population rank** — each cluster's primary catchment population is ranked - **Catchment population rank** — each cluster's catchment population is ranked against every other cluster *within its own country*, not globally, so a Tier 1 cluster in a smaller market is compared to its own market's distribution rather than penalized for that market's overall size. Regional requires the top 10% nationally; District the top 25%; Local the top 50%. for that market's overall size. Regional requires the top 10% nationally on primary catchment (plus a secondary-catchment population check); District the top 25% on primary catchment; Local the top 50%. - **Spend rank** — District additionally requires the cluster to rank in the top quartile nationally on at least one of several consumer-spend measures, not population alone. - **Civic support** — a minimum count of regionally or locally classified hospitals within the cluster's outer catchment ring. Regional requires a regional-grade hospital; District accepts a regional or district hospital; Local accepts any classified hospital.