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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 11, 2026, 2:55 AM
3,026 datasets, 56,681 catalogued fields, 0 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.
Gaps in the data behind this page
Source last observed Oct 11, 2026, 2:02 AM.
710 of the 3,026 datasets in the catalog hold no queryable rows.
710 / 3,026
Source: /api/field-coverage
Check it yourself: /api/field-coverage#/catalog/datasets_mart_declared
48 of the 2,408 mirrored datasets lag the source they copy.
48 / 2,408
Source: /api/scorecard
Check it yourself: /api/scorecard#/mirror_lag/datasets_behind
This note returns on its own when the measurement moves.
These pages state their own gaps: /datasets, /freshness, /scorecard, /scorecard/fields, /analyses, /ontology, /graph, /alerts, any topic page under /domains.
Showing 2 of 52 datasets
DOT issues over 150 different types of sidewalk and roadway construction permits to utilities, contractors, government agencies and homeowners. Permits cover activities such as street openings, sidewa…
Weigh In Motion (WIM) devices are designed to capture and record the axle weights and gross vehicle weights as trucks drive over sensors at measurement sites. WIM devices are installed on City-owned s…