Loading…

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, 9:35 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, 9:35 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 51–100 of 603
Dataset	Fields	Decided	Understood	Nobody looked	Shared terms
Zoning Map Index: Quartersection 58k2-kgtb	0	0 —	0	0	0	See every field
Directory of Playgrounds 59gn-q4ai	0	0 —	0	0	0	See every field
2018 - 2019 Arts Data Survey 5cxm-c27f	0	0 —	0	0	0	See every field
NYC Planimetric Database: Railroad Structure 5dic-xnxs	0	0 —	0	0	0	See every field
Disciplinary Actions 5dmv-5d3w	0	0 —	0	0	0	See every field
Modified Zip Code Tabulation Areas (MODZCTA) Map 5fzm-kpwv	0	0 —	0	0	0	See every field
DSNY Sections (Map) 5hwa-9qfj	0	0 —	0	0	0	See every field
TAX_LOT_POLYGON 5i76-3eqt	0	0 —	0	0	0	See every field
2016 Orthoimagery Staten Island 5k4d-a692	0	0 —	0	0	0	See every field
DSNY Frequencies (Map) 5qcq-w32p	0	0 —	0	0	0	See every field
Competitiveness 5rx8-ct65	0	0 —	0	0	0	See every field
2011 Community School 5s8t-db6q	0	0 —	0	0	0	See every field
Census Demographics at the NYC Community District (CD) level 5unr-w4sc	0	0 —	0	0	0	See every field
NYC Parks Water Features 5v6p-rtfu	0	0 —	0	0	0	See every field
Walk-to-a-Park Service area 5vb5-y6cv	0	0 —	0	0	0	See every field
2009-2010 NYC High School Directory 5zjm-4nny	0	0 —	0	0	0	See every field
NYC Parks Drinking Fountains Map 622h-mkfu	0	0 —	0	0	0	See every field
Congressional Districts (water areas included) 62dw-nwnq	0	0 —	0	0	0	See every field
Construction Pipeline 64vf-hxyb	0	0 —	0	0	0	See every field
Special Waste Drop-Off Sites (Map) 68qr-38va	0	0 —	0	0	0	See every field
Ice Ladders 6bgt-eg8b	0	0 —	0	0	0	See every field
2000 Census Blocks (water areas included) 6cne-um3h	0	0 —	0	0	0	See every field
2012 Orthoimagery Brooklyn 6dju-qj67	0	0 —	0	0	0	See every field
2010-2011 NYC High School Directory 6dx8-h7s4	0	0 —	0	0	0	See every field
2008 District 75 School Survey 6etc-vpfd	0	0 —	0	0	0	See every field
Landfills 6gvx-hydd	0	0 —	0	0	0	See every field
2011 School Survey 6i5e-7v2f	0	0 —	0	0	0	See every field
Housing Database by 2020 CDTA (Map) 6jjp-if35	0	0 —	0	0	0	See every field
Sea Level Rise Maps (2080s 100-year Floodplain) 6jtr-t483	0	0 —	0	0	0	See every field
NYCDEP Citywide Hydrants 6pui-xhxz	0	0 —	0	0	0	See every field
Housing Database 6umk-irkx	0	0 —	0	0	0	See every field
Open Streets Locations (Map) 6vys-sfk5	0	0 —	0	0	0	See every field
NYC Parks Sectors Map 6wp7-y8uw	0	0 —	0	0	0	See every field
2008-2009 NYC High School Director 6wwu-giff	0	0 —	0	0	0	See every field
AddressPoint 6xyb-j5pk	0	0 —	0	0	0	See every field
NYC Saltwater Fishing Sites - Map 72w4-n8gq	0	0 —	0	0	0	See every field
NYCHA PSA (Police Service Areas) 72wx-vdjr	0	0 —	0	0	0	See every field
Pedestrian Zone Shapefile (Map) 73kr-kt5y	0	0 —	0	0	0	See every field
VZV Street Improvement Projects (SIPs) Intersections 79sh-heg3	0	0 —	0	0	0	See every field
NYC Planimetric Database: Miscellaneous Structures 7acq-q3tq	0	0 —	0	0	0	See every field
LinkNYC Locations Shapefile 7b32-6xny	0	0 —	0	0	0	See every field
State Senate Districts (water areas included) 7equ-j2vi	0	0 —	0	0	0	See every field
ARCHIVE - Greenstreets 7fuk-i2af	0	0 —	0	0	0	See every field
Staten Island Ferry – Daily Performance Data 7gic-pibm	0	0 —	0	0	0	See every field
VZV Taxi & Car Service Training Locations 7i33-iphh	0	0 —	0	0	0	See every field
Beaches 7ii8-ytj7	0	0 —	0	0	0	See every field
WalkNYC Overview BaseMap 2020 7jbq-q7je	0	0 —	0	0	0	See every field
1 foot Digital Elevation Model (DEM) Integer Raster 7kuu-zah7	0	0 —	0	0	0	See every field
Individual Landmark and Historic District Building Database (Map) 7mgd-s57w	0	0 —	0	0	0	See every field
VZV Speed Limits 7n5j-865y	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.