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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, 3:10 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.

2019 Yellow Taxi Trip Data

2upf-qytp

← What we have understood · Dataset page

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
tpep_pickup_datetime	Calendar date	Not enough to tell	—	value_profile	—
congestion_surcharge	Text	Understood	quantity.money Monetary amount	value_profile top[6]={0.5×11482402; 0×233200; -0.5×25056; 0.6×7; 0.81×1; 0.83×1}	—
total_amount	Number	Not enough to tell	—	value_domain_read	—
pulocationid PULocationID	Number	Checked, no match	—	value_domain_read card=263 nonnull=84399019 null=0 smallest=1 largest=265	—
dolocationid DOLocationID	Number	Checked, no match	—	value_domain_read card=263 nonnull=84399019 null=0 smallest=1 largest=265	—
mta_tax	Number	Understood	quantity.money Monetary amount	value_profile top[6]={0.5×11482402; 0×233200; -0.5×25056; 0.6×7; 0.81×1; 0.83×1}	—
payment_type	Number	Not enough to tell	—	value_profile	—
extra	Number	Not enough to tell	—	value_domain_read	—
tip_amount	Number	Not enough to tell	—	value_domain_read	—
tolls_amount	Number	Not enough to tell	—	value_domain_read	—
improvement_surcharge	Number	Understood	quantity.money Monetary amount	value_profile top[6]={0.5×11482402; 0×233200; -0.5×25056; 0.6×7; 0.81×1; 0.83×1}	—
trip_distance	Number	Checked, no match	—	value_domain_read smallest=0.00 largest=640.00 sum=31516885.51 average=2.684420357889377	—
passenger_count	Number	Checked, no match	—	value_domain_read top[8 of 10]={1×9887419; 2×938995; 5×416239; 3×221037; 6×203442; 4×71048; 0×1843; 8×286}	—
vendorid VendorID	Number	Not enough to tell	—	value_profile	—
store_and_fwd_flag	Text	Checked, no match	—	value_domain_read top[2]={N×11723594; Y×17073}	—
fare_amount	Number	Not enough to tell	—	value_domain_read	—
tpep_dropoff_datetime	Calendar date	Not enough to tell	—	value_profile	—
ratecodeid RatecodeID	Number	Not enough to tell	—	value_profile	—