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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 12, 2026, 9:02 AM

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 12, 2026, 9:02 AM.

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 451–500 of 603
Dataset	Fields	Decided	Understood	Nobody looked	Shared terms
DSNY DonateNYC Directory (Map) qtrb-nhaa	0	0 —	0	0	0	See every field
ARCHIVE - Beaches qvtg-k2hn	0	0 —	0	0	0	See every field
Functional Parkland Map r2ng-2bhg	0	0 —	0	0	0	See every field
Waterfront Public Access Areas (WPAAs) - Footprints - Map r395-44a8	0	0 —	0	0	0	See every field
2014 Orthoimagery Brooklyn r5j3-b762	0	0 —	0	0	0	See every field
Location of Disposal Facilities and Sites Used for DSNY-Managed Waste (Map) r6e8-2fwe	0	0 —	0	0	0	See every field
Motor Vehicle Collisions Summary Reports r7rr-2vqh	0	0 —	0	0	0	See every field
Pedestrian Ramp - Program Progress (Map) r94j-3cph	0	0 —	0	0	0	See every field
2011-2012 Transfer High School Progress Report rb33-zusf	0	0 —	0	0	0	See every field
2011-2012 NYC High School directory rek2-fjft	0	0 —	0	0	0	See every field
Designated Areas in M districts Appendix J rew8-qrvr	0	0 —	0	0	0	See every field
Property Valuation and Assessment Data rgy2-tti8	0	0 —	0	0	0	See every field
ARCHIVE - Golf Courses rjqi-t95z	0	0 —	0	0	0	See every field
Universal Pre-K rm4p-5usz	0	0 —	0	0	0	See every field
Citywide Low Bridges rn6h-i66u	0	0 —	0	0	0	See every field
Abuse/Neglect by Community District (CD) rnjn-x48k	0	0 —	0	0	0	See every field
NYC Street Tree Map – Stewardship Activity rnnj-5mmi	0	0 —	0	0	0	See every field
Bus Lanes - Local Streets (Map) rx8t-6euq	0	0 —	0	0	0	See every field
CommonPlace rxuy-2muj	0	0 —	0	0	0	See every field
Childcare Regulated Programs Map s65f-sqe8	0	0 —	0	0	0	See every field
Fiscal 2013 Appendices s7k9-vr5b	0	0 —	0	0	0	See every field
Parking Meters - ParkNYC Block Faces (Map) s7zi-dgdx	0	0 —	0	0	0	See every field
2020 Census Blocks (water areas included) - Mapped s84u-yh9q	0	0 —	0	0	0	See every field
NYC DOT Pedestrian Plazas - Point Feature (Map) s8x5-ashy	0	0 —	0	0	0	See every field
NYC Parks Active and Passive Recreation Map s9bk-jdih	0	0 —	0	0	0	See every field
Directory of Ice Skating Rinks sage-tgxd	0	0 —	0	0	0	See every field
NYC Street Tree Map - Stewardship Groups sban-vuz2	0	0 —	0	0	0	See every field
2020 Census Blocks - Mapped sbvv-hpwv	0	0 —	0	0	0	See every field
Adopt-a-Tree Inventory sg2s-hjt6	0	0 —	0	0	0	See every field
School Zones Map 2024-2025 shkv-c3w7	0	0 —	0	0	0	See every field
Street and Highway Capital Reconstruction Projects - Block (Map) si9g-fztb	0	0 —	0	0	0	See every field
2017 - 2018 NYC School Survey Teacher Data sjxh-har6	0	0 —	0	0	0	See every field
2014 Orthoimagery Queens - 1 of 2 sjy3-nf9e	0	0 —	0	0	0	See every field
Landcover Raster Data (2010) – 6in Resolution sknu-4f6s	0	0 —	0	0	0	See every field
Department of Finance Digital Tax Map smk3-tmxj	0	0 —	0	0	0	See every field
2016 Orthoimagery Tile Index sms6-sm5p	0	0 —	0	0	0	See every field
2014 Orthoimagery Bronx snt7-jkiu	0	0 —	0	0	0	See every field
NYC Truck Routes (Historical) spax-mybh	0	0 —	0	0	0	See every field
DSNY Snow Priority Designation (Map) ssqc-a9e6	0	0 —	0	0	0	See every field
LockerNYC Locations (Map) sstf-x9es	0	0 —	0	0	0	See every field
2006 Orthoimagery Queens stv3-xtpf	0	0 —	0	0	0	See every field
Directory of Horseback Riding Trails sxe3-hucm	0	0 —	0	0	0	See every field
Housing Database by NTA (Map) sxwi-583e	0	0 —	0	0	0	See every field
NYC Planimetric Database: Elevation Points szwg-xci6	0	0 —	0	0	0	See every field
2015 - 2016 Biannual Report July t3w8-49gp	0	0 —	0	0	0	See every field
Special Traffic Updates t4s6-khpm	0	0 —	0	0	0	See every field
2018 Squirrel Census - Hectare Grid Map t572-gp5u	0	0 —	0	0	0	See every field
2004 Orthoimagery Bronx t6ia-5tin	0	0 —	0	0	0	See every field
2011 D75 School Surveys t9nb-zfe4	0	0 —	0	0	0	See every field
2010 Orthoimagery Queens - 2 of 2 tars-scr5	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.