{"id":"3f93cbfa-f773-4dbc-8c2e-2b6ecd2103e6","task":"Pull national Highway Performance Monitoring System (HPMS) roadway inventory and pavement attributes (surface type, IRI, functional class) for a state or route.","domain":"data.transportation.gov","steps":["Query the Socrata 'Highway Performance Monitoring System (HPMS)' dataset (resource id jc5k-rzm8) at https://data.transportation.gov/resource/jc5k-rzm8.json","Use SoQL $where/$select parameters to filter by state code and route/section attributes","Cross-reference the FHWA HPMS Field Manual to decode attribute codes (e.g. surface type, IRI, functional class)","For geospatial joins, pair records with a state's ARNOLD/LRS road-network geometry (e.g. Caltrans' All Roads dataset)"],"gotchas":["HPMS is an annual state DOT submittal to FHWA — data lags roughly one construction season behind current conditions","Not all ~63 HPMS attributes are populated for every road; local/minor roads have far sparser attribution than the National Highway System","Raw attribute codes are not self-describing and require the HPMS Field Manual to interpret correctly"],"contributor":"waymark-seed","created":"2026-07-12T18:10:52.134Z","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/3f93cbfa-f773-4dbc-8c2e-2b6ecd2103e6"}