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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, 9:58 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, 9:58 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 501–550 of 603
Dataset	Fields	Decided	Understood	Nobody looked	Shared terms
Street Seats (Map) 2014-2019 tbmp-nmim	0	0 —	0	0	0	See every field
LinkNYC New-Site Permit Applications - Map tdt4-7qzu	0	0 —	0	0	0	See every field
Bicycle Parking Shelters (Map) thbt-gfu9	0	0 —	0	0	0	See every field
3-D Building Model tnru-abg2	0	0 —	0	0	0	See every field
2015 - 2016 Annual Report on Special Education tq7f-w2f5	0	0 —	0	0	0	See every field
2002 Bronx, Brooklyn, Queens Orthoimagery Tile Index tqh4-y786	0	0 —	0	0	0	See every field
Individual Landmark Sites (Map) ts56-fkf5	0	0 —	0	0	0	See every field
2006 Orthoimagery Bronx tsny-wwsu	0	0 —	0	0	0	See every field
Franchise and Concession Review Committee twim-r7xp	0	0 —	0	0	0	See every field
Local Law 1 City Council Report FY 2015 u2m4-wh3s	0	0 —	0	0	0	See every field
Outdoor Learning - Streets Locations Map (Historical) u3t3-74n4	0	0 —	0	0	0	See every field
Demographic Profiles of ACS 5 Year Estimates at the New York City and Borough Level u42x-c94z	0	0 —	0	0	0	See every field
2015 NYC School Survey u4es-gw3m	0	0 —	0	0	0	See every field
NYC 3D Model by Community District u5j4-zxpn	0	0 —	0	0	0	See every field
2015 NYC School Survey u5vp-yxq8	0	0 —	0	0	0	See every field
School Attendance Statistics u6fv-5dqe	0	0 —	0	0	0	See every field
2017-2021 NYC KIDS Survey u7vp-i37z	0	0 —	0	0	0	See every field
Pedestrian Ramp Locations (Map) u7ws-2dus	0	0 —	0	0	0	See every field
School Progress Report ud5r-z5ws	0	0 —	0	0	0	See every field
Taxi and For Hire Vehicle (FHV) Relief Stands (Map) udk9-t2yf	0	0 —	0	0	0	See every field
Municipal Parking Facilities (Staten Island) udt3-taj7	0	0 —	0	0	0	See every field
DEP's Citywide Parcel-Based Impervious Area GIS Study uex9-rfq8	0	0 —	0	0	0	See every field
Fire Battalions uh7r-6nya	0	0 —	0	0	0	See every field
2012-2013 Elem MS K-8 uk5i-vjzr	0	0 —	0	0	0	See every field
EZ Pass Readers - Local Street Traffic Speeds (Midtown in Motion) ume6-8kxp	0	0 —	0	0	0	See every field
Accessible Pedestrian Signal Locations (Map) umfn-twbz	0	0 —	0	0	0	See every field
Directory of Historic Houses un72-4nix	0	0 —	0	0	0	See every field
DSNY District (Map) uqhg-h4at	0	0 —	0	0	0	See every field
ARCHIVE - Schoolyards To Playgrounds urxm-vzzk	0	0 —	0	0	0	See every field
WalkNYC Base Map Data 2017 utnf-u4xf	0	0 —	0	0	0	See every field
2004 Orthoimagery Staten Island uvbr-fk6w	0	0 —	0	0	0	See every field
NYC Planimetric Database: Retaining Wall uvgd-xsc8	0	0 —	0	0	0	See every field
Sandy Inundation Zone uyj8-7rv5	0	0 —	0	0	0	See every field
NYC Calendar Sales (Archive) uzf5-f8n2	0	0 —	0	0	0	See every field
2015 Child Health, Emotional Wellness, and Development Survey (CHEWDS) uzg5-56gw	0	0 —	0	0	0	See every field
Automatic Public Toilets (Map) uzgy-xh4j	0	0 —	0	0	0	See every field
2012 Orthoimagery Bronx v3am-k46r	0	0 —	0	0	0	See every field
Directory of Barbecuing Areas v3zf-nci8	0	0 —	0	0	0	See every field
VZV Vision Zero View Data v7f4-yzyg	0	0 —	0	0	0	See every field
2010 Census Blocks (water areas included) v9xd-tt3e	0	0 —	0	0	0	See every field
2011 - 2014 Annual Arts in School Reports vdgp-ddvg	0	0 —	0	0	0	See every field
NYC Planimetric Database: Sidewalk vfx9-tbb6	0	0 —	0	0	0	See every field
TAX_BLOCK_POLYGON vhcs-h6rv	0	0 —	0	0	0	See every field
Weekday Traffic Updates vihk-m25f	0	0 —	0	0	0	See every field
Community Connect: Bronx Information Portal vijr-8gr7	0	0 —	0	0	0	See every field
Sustainability Indicators (2012) vnwz-ihnf	0	0 —	0	0	0	See every field
MillionTreesNYC Block Planting Locations vr8g-vfny	0	0 —	0	0	0	See every field
Citi Bike System Data vsnr-94wk	0	0 —	0	0	0	See every field
Community Parks Initiative Zone Boundaries vvdx-b56i	0	0 —	0	0	0	See every field
Greenstreets vzj6-pcjy	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.