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feat(transform): H3 catchment index, res 5 k_ring(1) ~24km radius
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Merges worktree-h3-catchment-index. dim_locations now computes h3_cell_res5
(res 5, ~8.5km edge). location_profiles and dim_locations updated;
old location_opportunity_profile.sql already removed on master.

Conflict: location_opportunity_profile.sql deleted on master, kept deletion
and applied h3_cell_res4→res5 rename to location_profiles instead.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Deeman
2026-03-06 14:45:45 +01:00
parent 4d29ecf1d6 f81d5f19da
commit 77ec3a289f
2 changed files with 10 additions and 10 deletions
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18
transform/sqlmesh_padelnomics/models/serving/location_profiles.sql
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@@ -20,7 +20,7 @@
-- "Where should I build a padel court?"
-- Computed for ALL locations — zero-court locations score highest on supply gap.
-- H3 catchment methodology: addressable market and supply gap use a regional
-- H3 catchment (res-4 cell + 6 neighbours, ~462km², ~15-18km radius).
-- H3 catchment (res-5 cell + 6 neighbours, ~24km radius).
--
-- 25 pts addressable market — log-scaled catchment population, ceiling 500K
-- 20 pts economic power — income PPS, normalised to 35,000
@@ -63,30 +63,30 @@ base AS (
l.padel_venues_per_100k,
l.nearest_padel_court_km,
l.tennis_courts_within_25km,
l.h3_cell_res4
l.h3_cell_res5
FROM foundation.dim_locations l
),
-- Aggregate population and court counts per H3 cell (res 4, ~10km edge).
-- Grouping by cell first (~30-50K distinct cells vs 140K locations) keeps the
-- Aggregate population and court counts per H3 cell (res 5, ~8.5km edge).
-- Grouping by cell first (~50-80K distinct cells vs 140K locations) keeps the
-- subsequent lateral join small.
hex_stats AS (
SELECT
h3_cell_res4,
h3_cell_res5,
SUM(population) AS hex_population,
SUM(padel_venue_count) AS hex_padel_courts
FROM foundation.dim_locations
GROUP BY h3_cell_res4
GROUP BY h3_cell_res5
),
-- For each location, sum hex_stats across the cell + 6 neighbours (k_ring=1).
-- Effective catchment: ~462km², ~15-18km radius — realistic driving distance.
-- Effective catchment: ~24km radius — realistic driving distance.
catchment AS (
SELECT
l.geoname_id,
SUM(hs.hex_population) AS catchment_population,
SUM(hs.hex_padel_courts) AS catchment_padel_courts
FROM base l,
LATERAL (SELECT UNNEST(h3_grid_disk(l.h3_cell_res4, 1)) AS cell) ring
JOIN hex_stats hs ON hs.h3_cell_res4 = ring.cell
LATERAL (SELECT UNNEST(h3_grid_disk(l.h3_cell_res5, 1)) AS cell) ring
JOIN hex_stats hs ON hs.h3_cell_res5 = ring.cell
GROUP BY l.geoname_id
),
-- Match dim_cities via (country_code, geoname_id) to get city_slug + exact venue count.