Policy · Reviewed Sep 9, 2026
BigBoards data methodology
How sources enter the site, how scopes stay intact and how calculations remain auditable.
What the sources support.
Claims below reproduce the scope of the page contract. Derived items show their calculation.
- verified
The MRC public-comment draft says OOH measurement techniques vary by format and location and that inherent limitations should be studied and disclosed.
1. Primary sources first
Industry revenue uses dated OAAA releases. Public-company claims use SEC filings. Measurement definitions prefer Geopath, OAAA and MRC materials. Vendor pages may describe a vendor’s own method but do not establish a universal standard.
2. Scope before comparison
Every value retains its period, geography, format and reporting perimeter. We do not label company or segment revenue as market share without a reconciled market denominator.
3. Derived values are labeled
Arithmetic created by BigBoards is marked “derived” and shows its inputs. We do not estimate missing observations merely to complete a chart.
4. Revisions stay visible
When a primary source changes, the affected page receives a revision date and the derived outputs are recomputed. We preserve the nature of the change.
5. Unproven claims are omitted
No city pricing, inventory availability, operator ranking, effectiveness promise or review score is published without suitable evidence. The MRC draft’s emphasis on format-specific limitations informs this restraint.
Sources for this page
- Media Rating CouncilNovember 2023 draftOOH Measurement Standards — Public Comment Draft (opens in a new tab) ↗
Used for: OOH measurement terms, format-dependent techniques and disclosure of limitations.