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Coverage

56,681 of 56,681 columns decided — 100.0% · 12,642 bound (22.3%) · 0 still unread

Bound: 12,642; 22.3%; a concept was found and asserted for the column.
Refused: 32,953; 58.1%; the column was read and no concept fits. A verdict, not a gap.
Insufficient: 11,086; 19.6%; read, but the evidence did not settle it.
Unanalysed: 0; 0.0%; nobody has read this column yet.

56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 11, 2026, 11:48 PM

Where the unread columns are

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

603 of the 3,026 datasets in the catalog list no columns at all.

Source last observed Oct 11, 2026, 11:48 PM.

Where each note comes from

603 of the 3,026 datasets in the catalog list no columns at all.
603 / 3,026
Source: /api/field-coverage
Check it yourself: /api/field-coverage#/catalog/datasets_no_inventory

These pages state their own gaps: /datasets, /freshness, /scorecard, /scorecard/fields, /analyses, /ontology, /graph, /alerts, any topic page under /domains, any dataset page.

What we have understood

Freshness above is about the data being current. This is about the data being understood: how many of the catalogue's fields carry a meaning we can act on, which datasets are still waiting, and how far the joinable web reaches.

← Citywide scorecard

Datasets by how much of them we have read

Datasets with the most fields left to read

Showing 151–200 of 603
Dataset	Fields	Decided	Understood	Nobody looked	Shared terms
Model Aircraft Fields asbw-cwm7	0	0 —	0	0	0	See every field
Playgrounds with Dedicated Children's Areas (DCAs) asdj-rj9b	0	0 —	0	0	0	See every field
2008 Orthoimagery Staten Island at6p-rk97	0	0 —	0	0	0	See every field
LL87 Energy Audit Data au6c-jqvf	0	0 —	0	0	0	See every field
Directory of Handball Courts aviq-jvfs	0	0 —	0	0	0	See every field
Hurricane Evacuation Centers (Map) ayer-cga7	0	0 —	0	0	0	See every field
2018 Orthoimagery Staten Island ayph-gj7e	0	0 —	0	0	0	See every field
Health Center Districts b55q-34ps	0	0 —	0	0	0	See every field
Staten Island Ferry Schedule - General Transit Feed Specification (GTFS) b57i-ri22	0	0 —	0	0	0	See every field
BPL Electronic Resources b7t4-zm44	0	0 —	0	0	0	See every field
Protected Streets Intersection (Map) b8yg-sprn	0	0 —	0	0	0	See every field
Directory of Basketball Courts b937-zdky	0	0 —	0	0	0	See every field
Citywide Outfalls b9ze-z4u4	0	0 —	0	0	0	See every field
Holiday Construction Embargo - Block (Map) bbj7-8idq	0	0 —	0	0	0	See every field
Property Address Directory bc8t-ecyu	0	0 —	0	0	0	See every field
Canine Waste Dispensers Map bcsx-ch6m	0	0 —	0	0	0	See every field
Detention and Placement Demographic reports bhs9-p657	0	0 —	0	0	0	See every field
Open Storefronts Applications (Map) bia8-jpx6	0	0 —	0	0	0	See every field
2008 General Education School Survey bjfz-j45a	0	0 —	0	0	0	See every field
2000 Census Tracts (water areas included) bmax-4kci	0	0 —	0	0	0	See every field
Zoning Map Index: Section bpt7-i8t8	0	0 —	0	0	0	See every field
NYC Parks Forever Wild Map br7w-st33	0	0 —	0	0	0	See every field
NYC Early Interventions: Local Early Intervention Coordinating Council (LEICC) Report brud-mdtt	0	0 —	0	0	0	See every field
VZV Enhanced Crossings bssx-36gg	0	0 —	0	0	0	See every field
VZV Safe Streets for Seniors bsuh-ywiw	0	0 —	0	0	0	See every field
Mandatory Inclusionary Housing (MIH) bw8v-wzdr	0	0 —	0	0	0	See every field
Tree Canopy Change (2010 - 2017) by9k-vhck	0	0 —	0	0	0	See every field
Street Network Changes (Historical) bymk-vktx	0	0 —	0	0	0	See every field
Bicycle Parking (Map) bzg2-2abf	0	0 —	0	0	0	See every field
2010 Orthoimagery Queens - 1 of 2 bzri-pz9j	0	0 —	0	0	0	See every field
City Owned and Leased Property (COLP) – Geodatabase c2g8-ercv	0	0 —	0	0	0	See every field
Capital Projects Database (CPDB) - Projects (Polygons Maps) c48v-p34c	0	0 —	0	0	0	See every field
Pedestrian Mobility Plan Pedestrian Demand - (Map) c4kr-96ik	0	0 —	0	0	0	See every field
Citywide Crime Statistics c5dk-m6ea	0	0 —	0	0	0	See every field
2011 NYC District 75 School Survey c5u8-5c47	0	0 —	0	0	0	See every field
Housing Database by 2020 Census Block (Map) c9ex-t8kt	0	0 —	0	0	0	See every field
Waterfront Revitalization Program (WRP) cbn4-bn4p	0	0 —	0	0	0	See every field
2002 Orthoimagery Bronx ce34-mm33	0	0 —	0	0	0	See every field
2010 Orthos Tile Index chzg-3b9u	0	0 —	0	0	0	See every field
Appendix I - Transit Zones cpcf-tcxs	0	0 —	0	0	0	See every field
Property Valuation and Assessment data Tax Classes 2,3,4 cqds-77ys	0	0 —	0	0	0	See every field
Lower Density Growth Management Areas (Map) cse5-enmd	0	0 —	0	0	0	See every field
2014–2015 Report on Special Education cteu-mj4k	0	0 —	0	0	0	See every field
Demographic and Housing Profiles by Borough cu9u-3r5e	0	0 —	0	0	0	See every field
2080s Mean Sea Level cyvg-fsk8	0	0 —	0	0	0	See every field
2001 Manhattan Orthoimagery Tile Index d2bw-3fid	0	0 —	0	0	0	See every field
TLC Driver Exam Testing Center Locations (Map) d3pp-cj56	0	0 —	0	0	0	See every field
DSNY Litter Basket (Map) d6m8-cwh9	0	0 —	0	0	0	See every field
2017-2018 Arts Data Report d9fr-a56v	0	0 —	0	0	0	See every field
Waterfront Access Plans d9z4-v86m	0	0 —	0	0	0	See every field

The web of datasets and fields

A line means a dataset carries a field tagged with a shared vocabulary term. Two datasets on the same term speak the same language about it, which is what makes a cross-dataset question possible. Sharing a term is not the same as a working join — the dataset page says whether a specific pair compiles.

Bipartite. A dimension node is a conformed-dimension family; a dataset node is a catalog dataset; an edge means that dataset carries at least one column tagged with that dimension, and names the columns that carry it.

No field list yet: We hold no columns for these at all.
Nothing read yet: We hold their columns and have decided none of them.
Under half read: Fewer than half their fields carry a verdict.
Half read: At least half their fields carry a verdict.
Most read: At least three quarters of their fields carry a verdict.
Every field decided: Every field carries a verdict — which does not mean every field is understood.

How many of an edge's tagging columns carry a method that actually read something. Zero means the edge rests entirely on carried lexical tags.

Two datasets on the same dimension node share a vocabulary, which is weaker than a join. GET /api/datasets/{fourFour}/bindings/{partner} decides whether a specific pair compiles; executing it additionally needs both marts present.