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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 10, 2026, 11:49 PM

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.

DOT Traffic Speeds

i4gi-tjb9

Fields catalogued

Understood

Checked, no match

Nobody has looked

Every field decided — Every field carries a verdict — which does not mean every field is understood.

Every field in this dataset

Covered and uncovered alike, in the order the publisher lists them. A field with no verdict is one nobody has looked at yet.

Field	Type	What we know	Meaning	How it was decided	Shared term
owner OWNER	Text	Checked, no match	—	value_profile top[8]={NYC_DOT_LIC×81649810; MTA Bridges & Tunnels×7180273	—
transcom_id TRANSCOM_ID	Text	Checked, no match	—	value_domain_read top[8 of 20]={113610137750137790×51	—
borough BOROUGH	Text	Understood	place.borough Borough	value_domain_read	borough
status STATUS	Text	Not enough to tell	—	value_domain_read	—
speed SPEED	Text	Checked, no match	—	value_domain_read top[8 of 20]={0.00×12048120; 0×3801034; 50.95×1852439	—
link_id LINK_ID	Text	Checked, no match	—	value_domain_read top[8 of 20]={113610137750137790×51	—
link_points LINK_POINTS	Text	Understood	geometry.line Linear geometry	value_domain_read 40.63092,-74.14592 40.62975,-74.14593	—
encoded_poly_line_lvls ENCODED_POLY_LINE_LVLS	Text	Not enough to tell	—	value_domain_read	—
encoded_poly_line ENCODED_POLY_LINE	Text	Not enough to tell	—	value_domain_read	—
travel_time TRAVEL_TIME	Text	Checked, no match	—	value_domain_read top[8 of 20]={0.00×12048120; 0×3801034; 50.95×1852439	—
data_as_of DATA_AS_OF	Calendar date	Not enough to tell	—	value_profile	—
id ID	Text	Checked, no match	—	value_domain_read top[8 of 20]={113610137750137790×51	—
link_name LINK_NAME	Text	Checked, no match	—	value_domain_read CIP S LIE - Hempstead Tpk×805966	—