Global OOH Audience Measurement Guidelines

World Out of Home Organization · June 2026 · v2.0

The Global OOH Audience Measurement Guidelines 2.0 are the World Out of Home Organization’s framework for measuring out-of-home audiences with the rigour and transparency advertisers expect. Published in June 2026, this second edition draws on the work of twenty-two national measurement bodies from five continents — double the number that contributed in 2022.

It reflects four years of rapid change: AM4DOOH is now an adopted international standard, the Impression Multiplier a live commercial instrument, and continuously collected mobility data and synthetic population modelling are reshaping how audiences are measured. The full document is free to read — register below to receive your access link.

"OOH has always made a strong intuitive case to advertisers. What measurement allows us to do is make that case with evidence — and every market that contributes, whatever its size, strengthens that collective credibility." — Tom Goddard, President, WOO