Methodology & data quality
Aequitas pre-computes bus equity analytics into a read-only warehouse. Phase 0 validation runs 103 automated checks with 0 failures. Spatial join coverage is 99.9993%. National inequality pack: Gini 0.5741 across 33,755 LSOAs and 55 analytical sections.
Datasets
- NaPTAN, BODS GTFS, ONS Census 2021, MHCLG IMD 2025
- NOMIS BRES, NHS ODS, GIAS, DfT TAG, DESNZ 2025
Appraisal
Economic sections follow DfT TAG and Green Book framing for indicative BCR/NPV-style metrics — not formal DfT-accredited scheme appraisal.