Archived research v1. Preserved for reference; its assumptions have not been revalidated for the new research.
Archived dossier data
Minimum catchment
Edition dated 7 September 2026
- Category
- Catchment
- How to test
- Recount resident managers and professionals in the actual travel-time catchment, at IRIS level
- Impact if wrong
- Critical
- Confidence
- Back-calculated
- Source
- 1,200 members ÷ 4% capture rate
- Value
- ≈ 30,000 managers and professionals in the travel-time catchment