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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 7:18 PM
3,026 datasets, 56,681 catalogued fields, 9,808 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.
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← What we have understood · Dataset page
Most read — At least three quarters of their fields carry a verdict.
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 |
|---|---|---|---|---|---|
| home_cms_zone | Text | Checked, no match | — | value_domain_readtop[8 of 12]={Manhattan Core×21089; Inner Brooklyn×11712; Upper Manhattan×7559; Inner Queens×7242; Southern Bronx×6893; Northern Bronx×5241; Outer Brooklyn×5133; Middle Queens×4951} | — |
| hh_member_11 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| mode_type_detailed | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| mode_1 | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| bike_park_location | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| d_distance_school | Number | Checked, no match | — | value_domain_readsmallest=0 largest=8383.707534 top[8 of 20]={0×69; 0.00691709×19; 0.020751269×16; 0.055336717×10; 0.131424704×8; 0.069170897×8; 0.124507614×7; 0.117590524×6} | — |
| o_purpose_imputed | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| hh_member_3 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| analyst_split | Number | Checked, no match | — | value_domain_readtop[3]={0×79052; 1×4318; 995×2089} | — |
| d_location_type | Number | Checked, no match | — | value_profilesmallest=1 largest=4 top[4]={4×60178; 1×18440; 2×6615; 3×226} | — |
| hh_member_9 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| invalid_purpose_flag | Number | Checked, no match | — | value_profilesmallest=0 largest=1 top[2]={0×65960; 1×19499} | — |
| d_purpose_category | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| survey_complete | Number | Checked, no match | — | value_profilesmallest=0 largest=1 top[2]={0×65960; 1×19499} | — |
| o_congestion | Number | Checked, no match | — | value_profilesmallest=0 largest=1 top[2]={0×65960; 1×19499} | — |
| hh_member_4 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| num_travelers | Number | Nobody has looked | — | — | — |
| taxi_cost_amount | Number | Checked, no match | — | value_domain_readsmallest=0.01 largest=NA top[8 of 20]={NA×85566; 0.01×115; 0.04×60; 0.02×50; 0.03×38; 1.1×36; 2.2×32; 0.05×32} | — |
| o_purpose_category_imputed | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| trip_weight | Number | Checked, no match | — | value_domain_readsmallest=0 largest=999.8431822 top[8 of 20]={0×11699; 121.5305307×440; 112.5177103×345; 229.2633298×310; 59.64467613×306; 47.03426367×276; 164.8405469×273; 217.8436865×200} | — |
| driver | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| person_num | Number | Checked, no match | — | value_profilesmallest=1 largest=1 top[1]={1×86339} | — |
| trip_id | Number | Nobody has looked | — | — | — |
| trip_num | Number | Checked, no match | — | value_domain_readsmallest=1 largest=13 top[8 of 13]={1×61144; 2×9734; 3×9712; 4×3515; 5×1591; 6×410; 7×151; 8×48} | — |
| unlinked_trip | Number | Checked, no match | — | value_domain_readtop[3]={0×79052; 1×4318; 995×2089} | — |
| depart_time | Calendar date | Understood | time.world_event.occurred Occurrence time | value_profilesmallest=2019-05-22T05:25:00.000 largest=2019-06-30T22:49:28.000 | — |
| mode_4 | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| arrive_time | Calendar date | Understood | time.world_event.closed Closing time | value_profilesmallest=2019-05-22T06:20:00.000 largest=2019-07-01T12:03:00.000 | — |
| hh_member_6 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| hh_member_5 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| travel_date | Calendar date | Nobody has looked | — | — | — |
| survey_mode | Number | Checked, no match | — | value_profilesmallest=1 largest=4 top[4]={4×60178; 1×18440; 2×6615; 3×226} | — |
| o_purpose | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| park_location | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| day_num | Number | Checked, no match | — | value_profilesmallest=1 largest=7 top[7]={4×13778; 3×13742; 2×13342; 5×13171; 6×11857; 1×10741; 7×9708} | — |
| hh_member_8 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| transit_access | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| hh_member_7 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| d_distance_home | Number | Checked, no match | — | value_domain_readsmallest=0 largest=8383.707534 top[8 of 20]={0×69; 0.00691709×19; 0.020751269×16; 0.055336717×10; 0.131424704×8; 0.069170897×8; 0.124507614×7; 0.117590524×6} | — |
| trip_duration | Number | Checked, no match | — | value_domain_readsmallest=0 largest=7465 top[8 of 20]={0×10831; 5×4304; 4×4125; 6×4062; 3×3823; 7×3700; 8×3364; 2×3297} | — |
| d_cms_zone | Text | Checked, no match | — | value_domain_readtop[8 of 12]={Manhattan Core×21089; Inner Brooklyn×11712; Upper Manhattan×7559; Inner Queens×7242; Southern Bronx×6893; Northern Bronx×5241; Outer Brooklyn×5133; Middle Queens×4951} | — |
| d_purpose_category_imputed | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| d_purpose_imputed | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| park_cost | Text | Checked, no match | — | value_domain_readsmallest=0.01 largest=NA top[8 of 20]={NA×85566; 0.01×115; 0.04×60; 0.02×50; 0.03×38; 1.1×36; 2.2×32; 0.05×32} | — |
| o_cms_zone | Text | Checked, no match | — | value_domain_readtop[8 of 12]={Manhattan Core×21089; Inner Brooklyn×11712; Upper Manhattan×7559; Inner Queens×7242; Southern Bronx×6893; Northern Bronx×5241; Outer Brooklyn×5133; Middle Queens×4951} | — |
| linked_trip_num | Number | Checked, no match | — | value_domain_readsmallest=1 largest=13 top[8 of 13]={1×61144; 2×9734; 3×9712; 4×3515; 5×1591; 6×410; 7×151; 8×48} | — |
| mode_3 | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| hh_id | Number | Nobody has looked | — | — | — |
| leg_num | Number | Checked, no match | — | value_domain_readsmallest=1 largest=995 top[8 of 9]={1×71937; 2×7315; 3×2960; 995×2089; 4×893; 5×207; 6×44; 7×10} | — |
| o_purpose_category | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| user_merged | Number | Checked, no match | — | value_domain_readtop[3]={0×79052; 1×4318; 995×2089} | — |
| analyst_split_loop | Number | Checked, no match | — | value_domain_readtop[3]={0×79052; 1×4318; 995×2089} | — |
| travel_date_dow | Number | Checked, no match | — | value_profilesmallest=1 largest=7 top[7]={4×13778; 3×13742; 2×13342; 5×13171; 6×11857; 1×10741; 7×9708} | — |
| added_trip | Number | Checked, no match | — | value_domain_readtop[3]={0×79052; 1×4318; 995×2089} | — |
| o_location_type | Number | Checked, no match | — | value_profilesmallest=1 largest=4 top[4]={4×60178; 1×18440; 2×6615; 3×226} | — |
| user_split | Number | Checked, no match | — | value_domain_readtop[3]={0×79052; 1×4318; 995×2089} | — |
| used_transit | Number | Checked, no match | — | value_profilesmallest=0 largest=1 top[2]={0×65960; 1×19499} | — |
| hh_member_2 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| person_id | Number | Nobody has looked | — | — | — |
| num_hh_travelers | Number | Checked, no match | — | value_domain_readsmallest=1 largest=12 top[8 of 9]={1×70394; 2×11888; 3×2661; 4×1125; 5×225; 6×34; 8×7; 9×3} | — |
| sustainable_mode | Number | Checked, no match | — | value_domain_readtop[3]={0×79052; 1×4318; 995×2089} | — |
| hh_member_1 | Number | Nobody has looked | — | — | — |
| hh_member_10 | Number | Checked, no match | — | value_domain_readtop[8 of 20]={995×47354; 0×31953; 1904819703×52; 1975792903×41; 1939943803×39; 1967878903×39; 1926485203×39; 1900785403×38} | — |
| transit_egress | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| d_distance_work | Number | Checked, no match | — | value_domain_readsmallest=0 largest=8383.707534 top[8 of 20]={0×69; 0.00691709×19; 0.020751269×16; 0.055336717×10; 0.131424704×8; 0.069170897×8; 0.124507614×7; 0.117590524×6} | — |
| mode_2 | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| d_purpose | Number | Checked, no match | — | value_domain_readsmallest=-9998 largest=997 top[8 of 20]={1×18043; 33×13060; 60×11310; 10×7361; -9998×6614; 50×6275; 63×5968; 997×4669} | — |
| trip_distance | Number | Checked, no match | — | value_domain_readsmallest=0 largest=8383.707534 top[8 of 20]={0×69; 0.00691709×19; 0.020751269×16; 0.055336717×10; 0.131424704×8; 0.069170897×8; 0.124507614×7; 0.117590524×6} | — |
| long_distance_flag | Number | Checked, no match | — | value_profilesmallest=0 largest=1 top[2]={0×65960; 1×19499} | — |
| park_pay | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| d_congestion | Number | Checked, no match | — | value_profilesmallest=0 largest=1 top[2]={0×65960; 1×19499} | — |
| num_non_hh_travelers | Number | Checked, no match | — | value_domain_readsmallest=1 largest=12 top[8 of 9]={1×70394; 2×11888; 3×2661; 4×1125; 5×225; 6×34; 8×7; 9×3} | — |
| mode_type | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| analyst_merge | Number | Checked, no match | — | value_domain_readtop[3]={0×79052; 1×4318; 995×2089} | — |
| taxi_cost | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |
| high_speed_flag | Number | Checked, no match | — | value_profilesmallest=0 largest=1 top[2]={0×65960; 1×19499} | — |
| scooter_park_location | Number | Checked, no match | — | value_domain_readtop[8 of 11]={9×31060; 7×23678; 6×13263; 995×6339; 4×5355; 10×1379; 8×1342; 2×1244} | — |