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Ontology crosswalk

Not commercially licensable. FAF5 Freight Flows is outside the Commercial All-access license; no commercial or paid tier is offered for it.

FAF5 Freight Flows — Ontology Crosswalk v1.0

Dataset: FAF5 Freight Flows (faf5-freight-flows) Target standards: USDOT BTS / FHWA / ORNL Freight Analysis Framework 5.7.1 (DOI 10.21949/1529116); Standard Classification of Transported Goods (SCTG); ANSI/FIPS state codes; APRS ingestion contract. Dataset license: LicenseRef-US-Gov-Public-Domain — U.S. Government public domain (FAF5.7.1 U.S. Government work; cite USDOT BTS, FHWA and ORNL, FAF5.7.1, DOI 10.21949/1529116), research release · not commercially licensable; outside the Commercial All-access license Effective: 2026-11-07

FAF rows are modeled annual aggregate flow estimates. Publisher codes are authoritative source terms and are preserved as strings; the FAF5 User Guide defines their meaning. The APRS envelope mappings describe the canonical conceptual boundary; envelope-only fields are not emitted by the flat releases.

1. Field mapping

Codex field External term / source field Namespace Notes
chunk_id dct:identifier Dublin Core / APRS Envelope-only.
doc_id schema:identifier schema.org / APRS Envelope-only; would bind record_id.
record_id dct:identifier Dublin Core / APRS Stable release-qualified source-row URN.
source_native_id FAF natural identity FAF5 Pipe-joined publisher codes plus year.
release_version FAF release FAF5 5.7.1.
year time:Year OWL-Time Annual estimate period.
estimate_status FAF estimate status FAF5 final or preliminary.
fr_orig fr_orig FAF5 Foreign origin region code.
origin_state_fips dms_origst FAF5 / ANSI FIPS State panel origin state.
destination_state_fips dms_destst FAF5 / ANSI FIPS State panel destination state.
dms_orig dms_orig FAF5 Zone sample origin FAF zone.
dms_dest dms_dest FAF5 Zone sample destination FAF zone.
fr_dest fr_dest FAF5 Foreign destination region code.
fr_inmode fr_inmode FAF5 Foreign inbound mode code.
dms_mode dms_mode FAF5 Domestic mode code.
fr_outmode fr_outmode FAF5 Foreign outbound mode code.
sctg2 SCTG two-digit commodity SCTG Not NAICS.
trade_type trade_type FAF5 Trade type code.
dist_band dist_band FAF5 Distance band classification.
tons_thousands tons_<year> FAF5 Thousand short tons.
value_million_2017_usd value_<year> FAF5 Million constant 2017 US dollars.
current_value_million_usd current_value_<year> FAF5 Million current-year US dollars.
ton_miles_millions tmiles_<year> FAF5 Million ton-miles.
source_feed dct:source Dublin Core / Axiom registry Governed source feed identifier.
source_system dct:source Dublin Core / Axiom registry faf5.
source_uri dct:source Dublin Core Exact FAF5.7.1 input file.
acl_tier dct:accessRights Dublin Core / Axiom policy Research tier marker.
acl dct:accessRights Dublin Core / APRS Envelope-only.
schema_version dct:conformsTo Dublin Core Frozen row-level schema string.
normalization_version dct:conformsTo Dublin Core Normalization contract version.
occurred_at prov:startedAtTime W3C PROV-O Always null.
effective_from time:hasBeginning OWL-Time Envelope-only.
effective_to time:hasEnd OWL-Time Envelope-only.
ingested_at prov:generatedAtTime W3C PROV-O Codex observation clock.
modified_at prov:generatedAtTime W3C PROV-O / Axiom Last re-derivation clock.
superseded_by prov:wasRevisionOf W3C PROV-O Envelope-only.
confidence_score N/A APRS envelope Envelope-only; no Codex confidence is assigned.
provenance prov:wasGeneratedBy W3C PROV-O Envelope-only; release manifest.json carries provenance.

2. Deviations

Deviation Rationale
Annual year columns are pivoted into one row per year. One record per natural identity and year keeps measures comparable across years.
occurred_at is null. An annual estimate has no event instant.
No h3_index. A state or FAF zone has no canonical observation point; a centroid would misrepresent an aggregate flow as cell-level freight.

3. References

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