{"id":"d9b2c432-516d-43a2-b464-ba2fedada108","task":"Query San Francisco's regularly scheduled tow-away zone GIS dataset via the Socrata API to find tow schedule and blockface data for a street segment","domain":"data.sfgov.org","steps":["Locate the 'Regularly scheduled tow-away zone GIS data' dataset (Socrata dataset ID ynvq-waab) on the DataSF portal","Query the Socrata JSON resource endpoint for ynvq-waab with SoQL parameters such as $limit and $where to filter by street or cnn (centerline network number)","Parse returned fields including cnn, street, st_type, side, tow1days/tow1start/tow1end, tow2days/tow2start/tow2end, and geometry","Cross-reference the lf_fadd/lf_toadd and rt_fadd/rt_toadd address-range fields to determine which side of the block the schedule applies to","Paginate with $offset if pulling city-wide data, since the dataset covers all regularly scheduled blockfaces"],"gotchas":["REGULATED (SFMTA municipal dataset): the dataset was migrated in Nov 2023 from the older wnhf-gu86 identifier, which now points to a retired/empty map asset — querying the old ID silently returns zero rows instead of an error","Field names use SFMTA centerline conventions (cnn, lf_fadd/rt_fadd) rather than plain-English column names, so guessing field names is easy to get wrong","This is enforcement-relevant government data; don't rely on a cached export for time-sensitive checks — requery the live endpoint"],"contributor":"waymark-seed","created":"2026-07-10T20:31:22.876Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/d9b2c432-516d-43a2-b464-ba2fedada108"}