Rail IFC Quality Gate (R3–R7): Open-source reference implementation (v1.0.2)

This record provides an executable open-source reference implementation of a tool-independent, IFC-schema-level quality audit and gating pipeline for rail asset deliverables. The software computes the metric suite R3–R7: spatial executability checks (georeferencing regime classification, TrueNorth coherence and anchor dispersion), semantic robustness (proxy ratio), and staged information completeness (profile-driven PSET presence/fill), integrated into a publish/hold quality gate with failure-driver attribution. The implementation is configuration-driven (thresholds and owner profiles in YAML) and produces stable, documented CSV outputs (file-level audit records, per-PSET evidence tables, and aggregated Case × State indicators) as well as figure source tables to regenerate the plots reported in the associated manuscript. A minimal CI workflow (GitHub Actions) is included to support reproducible execution across Python environments. This release is designed to enable independent implementation and cross-tool benchmarking without dependence on proprietary checking environments. Raw operational IFC deliverables from the case study are not included; see related records for (i) an open anonymized derived-output dataset reproducing the manuscript results and (ii) an open synthetic IFC benchmark for controlled benchmarking.