OOH Pushes Deeper Into Performance Media
OOH advertising has long benefited from its physical presence in the real world. But as marketers increasingly demand the same level of attribution, interoperability, and performance accountability they expect from digital channels, the industry is racing to modernize how the medium is measured.
That effort is now accelerating through a new initiative led by the Out of Home Advertising Association of America (OAAA) and Geopath, which are developing a next-generation audience measurement platform designed to bring greater precision, interoperability, and advertiser confidence to out-of-home (OOH) media. The initiative arrives during a period of sustained momentum for the channel. According to OAAA, OOH advertising revenue reached $9.46 billion in 2025, growing 3.6% year over year. Digital OOH formats continued driving expansion, while transit advertising grew 9.2%, making it the fastest-growing segment for the second consecutive year. Street furniture and place-based media also posted gains.
“OOH is the human medium,” said Anna Bager, President and CEO of the OAAA. “It draws its power from the real world—streets, transit systems, and daily movement patterns.”
To help modernize how those movement patterns are measured, OAAA and Geopath are developing what they call the Advance Measurement System (AMS), with Ipsos selected to support an industry pilot scheduled to launch in the second half of 2026. The ambition behind the initiative is substantial: bringing OOH measurement closer to parity with digital and television channels in areas such as attribution, targeting, forecasting, and real-time analytics.
According to Bager, the AMS framework is designed to provide “decision-grade outputs” that allow advertisers to evaluate OOH investments with the same rigor increasingly applied to other media channels. “By aligning our metrics to cross-media planning standards, we ensure OOH performance withstands the same CFO and CMO scrutiny as any digital or TV investment,” Bager told StreetFight. “We are closing the confidence gap with real-time speed and results that are natively structured for attribution and Marketing Mix Modeling.”
Bringing OOH Into Omnichannel Workflows
For agencies and multi-location brands, interoperability may be one of the most consequential aspects of the initiative. Historically, OOH planning often operated independently from broader omnichannel buying workflows, limiting its ability to integrate cleanly into performance-driven media strategies. AMS aims to change that through standardized APIs and data structures that allow OOH performance data to flow directly into the planning, activation, and reconciliation systems already used by media buyers. “OOH is no longer a standalone planning exercise,” Bager said. “It is workflow-ready.”
That evolution could have particular significance for regional advertisers, franchises, and SMB-focused agencies that increasingly expect local media channels to deliver measurable business outcomes rather than broad awareness alone. Historically, many local OOH campaigns were evaluated primarily through location logic — choosing the right board, neighborhood, or trade area. While those factors still matter, advertisers increasingly want digital-style clarity around audience reach, exposure frequency, and downstream business impact. “Local and SMB advertisers now expect the same kind of clarity they get from digital,” Bager said. “Who they are reaching, how many people they are reaching, where exposure is happening, and how the media is contributing to business outcomes.”
Improved measurement could also lower the barrier to entry for smaller advertisers by making OOH easier to justify within performance-oriented marketing budgets. Instead of being treated primarily as a top-of-funnel branding tactic, OOH could increasingly become part of measurable local growth strategies tied to store traffic, retail promotions, market launches, and community-level engagement.
Building a Standardized Yet Localized Measurement System
The modernization effort also reflects broader industry shifts around privacy and data governance. Rather than relying solely on raw mobile location data, AMS combines privacy-compliant mobile SDK signals with validated “ground truth” inputs and advanced viewshed modeling designed to estimate real-world exposure more accurately while maintaining anonymity. “Accuracy and privacy are not competing goals,” Bager said. “They are the twin pillars of a calibration and validation framework designed for long-term data resiliency.”
The upcoming Ipsos-led pilot will effectively serve as a large-scale operational stress test ahead of a planned national rollout in 2027. The pilot will evaluate whether the system can accurately onboard and audit inventory, validate visibility conditions across multiple environments, normalize mobility data, and maintain stable reach and frequency metrics across formats. Industry participation has also been central to the initiative’s development. Bager said the discovery process included 95 stakeholder discussions across agencies, advertisers, and media owners ranging from national operators to regional and local companies.
“Local and regional feedback is critical,” Bager said, noting that the system must account for the nuances of varying market conditions, formats, traffic patterns, and physical viewing environments.
That balance between standardization and local complexity remains one of the industry’s biggest challenges. While AMS seeks to establish a standardized measurement currency that enables cross-channel comparison, the platform also incorporates advanced visibility logic designed to reflect real-world variables such as obstructions, differing formats, and localized movement behaviors. “We are standardizing the currency while addressing the real-world requirements of OOH measurement,” Bager said.
Ultimately, OAAA sees improved measurement as more than a technical upgrade. The organization views it as a foundational requirement for OOH to compete for larger portions of modern media budgets increasingly governed by accountability, interoperability, and measurable outcomes.
“Measurement confidence equals market momentum,” Bager said. “AMS provides the credibility and transparency required to compete for a larger share of the total media pie.”
