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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, 3:13 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, 3:13 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 301–350 of 603
Dataset	Fields	Decided	Understood	Nobody looked	Shared terms
2018 Orthoimagery Manhattan hxws-3mbm	0	0 —	0	0	0	See every field
Demographics and profiles at the Neighborhood Tabulation Area (NTA) level hyuz-tij8	0	0 —	0	0	0	See every field
NYC Clean Soil Bank Generating and Receiving Sites hywf-9b6t	0	0 —	0	0	0	See every field
VZV Turn Traffic Calming hz4p-9f7s	0	0 —	0	0	0	See every field
Protected Streets Block (Map) i3na-cf9d	0	0 —	0	0	0	See every field
NYC School Survey 2014 i3si-qy6x	0	0 —	0	0	0	See every field
Open Parking and Camera Violations i4p3-pe6a	0	0 —	0	0	0	See every field
2008 NYC School Survey - - General Education i762-rk6i	0	0 —	0	0	0	See every field
NYC Planimetric Database: Railroad Line i7a5-bsik	0	0 —	0	0	0	See every field
Municipal Parking Facilities (Manhattan) i8d5-5ciu	0	0 —	0	0	0	See every field
Directory of Hiking Trails i8f4-bu5r	0	0 —	0	0	0	See every field
2020 Public Use Microdata Areas (PUMAs) - Map id4y-qddt	0	0 —	0	0	0	See every field
LION Differences File ige5-v6sk	0	0 —	0	0	0	See every field
2014 School Survey igkm-n3xt	0	0 —	0	0	0	See every field
Restrictive Declaration Sites Map igsj-fxac	0	0 —	0	0	0	See every field
VZV Bike Priority Areas ii5c-g6sq	0	0 —	0	0	0	See every field
Parks Trails Map iidj-gxys	0	0 —	0	0	0	See every field
2017 - 2018 NYC School Survey Parent Data iiu6-juu8	0	0 —	0	0	0	See every field
Fire Companies iiv7-jaj9	0	0 —	0	0	0	See every field
NYC Planimetric Database: Curbs ikvd-dex8	0	0 —	0	0	0	See every field
NYC Parks Spray Showers Map im58-6hb9	0	0 —	0	0	0	See every field
Directory of Dog Runs and Off-Leash Areas ipbu-mtcs	0	0 —	0	0	0	See every field
2009 School Survey ixe9-9fcq	0	0 —	0	0	0	See every field
VZV Arterial Slow Zones ixwf-56db	0	0 —	0	0	0	See every field
2004 Orthoimagery Tile Index j49e-erz3	0	0 —	0	0	0	See every field
Educational Continuity of Children in Foster Care j4t9-dyts	0	0 —	0	0	0	See every field
Municipal Separate Storm Sewer System (MS4) Data j57c-rqtq	0	0 —	0	0	0	See every field
NYC Planimetric Database: Swimming Pools j7ww-5ipv	0	0 —	0	0	0	See every field
2007 NYC School Survey j8i7-ptfe	0	0 —	0	0	0	See every field
Criminal Court Summonses j8nm-zs7q	0	0 —	0	0	0	See every field
Waterfront Public Access Areas (WPAAs) - Map jakx-zd39	0	0 —	0	0	0	See every field
Designated and Calendared Buildings and Sites (Map) jcj6-zji6	0	0 —	0	0	0	See every field
New York City Domestic Violence Fatality Review Committee Annual Report: 2006 - 2020 jcs8-anmt	0	0 —	0	0	0	See every field
School Point Locations jfju-ynrr	0	0 —	0	0	0	See every field
Walk to a Park Service Area for CEQR Open Space Assessment jfsk-arcd	0	0 —	0	0	0	See every field
NYC Parks Pools Map jgf2-kw9q	0	0 —	0	0	0	See every field
City Council Districts (water areas included) jgqm-ccbd	0	0 —	0	0	0	See every field
Building Footprints (Map) jh45-qr5r	0	0 —	0	0	0	See every field
2002 Orthoimagery Queens jpib-dv6s	0	0 —	0	0	0	See every field
Lead Service Line Location Coordinates (Map) jpn2-huby	0	0 —	0	0	0	See every field
2011 NYC Community Schools Survey jt4k-7qty	0	0 —	0	0	0	See every field
2010 Orthoimagery Brooklyn - 1 of 2 jvnx-z9de	0	0 —	0	0	0	See every field
DOT Street Lights and Traffic Signals (311 Service Requests from 2010 to Present) jwvp-gyiq	0	0 —	0	0	0	See every field
NYC Orthoimagery Tile Index jxmq-5dde	0	0 —	0	0	0	See every field
Municipal Court Districts (water areas included) k2bb-k6p8	0	0 —	0	0	0	See every field
ARCHIVED - Parks Properties k2ya-ucmv	0	0 —	0	0	0	See every field
NYC Recovery & Resiliency Projects Map - Lines k6b6-sdbz	0	0 —	0	0	0	See every field
NYC Planimetric Database: Cooling Towers kbgp-72qi	0	0 —	0	0	0	See every field
Museums and galleries kcrm-j9hh	0	0 —	0	0	0	See every field
VZV Priority Corridors kdda-2wcy	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.