While the media landscape continues to evolve, one channel remains consistently effective: Out of Home (OOH) and Digital Out of Home (DOOH) advertising. Out of Home advertising continues to grow as a channel, with UK OOH revenue reaching a record £1.44bn in 2025, and forecast to reach around £1.47 billion in 2026. This sustained growth reflects the role OOH plays across a wide range of media strategies, from local campaigns to large-scale national activity.
Understanding the OOH & DOOH Landscape
OOH advertising spans a wide range of environments and formats. From classic roadside billboards and bus shelters to transport hubs and retail spaces, it captures attention in high-footfall, real-world locations.
A 6-sheet is accepted as the standard industry OOH and DOOH size and is most commonly found on the sides of bus shelters, in high streets and shopping centres, leisure centres and entertainment complexes – close to eye level, as well as close to the point of purchase, reaching people at the moment they are making decisions.
4-sheet escalator panels are positioned at eye level, capturing the attention of commuters travelling by metro or underground, delivering repeated message exposure to a captive audience during their daily routine.
16-sheet cross-track panels are positioned on the opposite platform wall in underground and rail stations, achieving high dwell-time visibility for campaign placements, as passengers spend time waiting on the platform.
A 48-sheet or larger 96-sheet is the billboard format positioned on a roadside or motorway, reaching travellers and commuters daily and is a position suited to campaigns that need to build awareness and achieve impact at scale.
Where an ad is placed matters just as much as the format itself. For example, a busy commuter route, a town centre junction or the entrance to a retail park directly affects how many people see the ad and how frequently, but location also shapes the mindset of the person seeing it. A commuter on an underground platform during the morning rush is in a very different mindset to a shopper browsing a high street on a Saturday afternoon or a driver passing a motorway billboard on a long journey. Each touchpoint brings a different mood and a different level of receptivity. This is why the best OOH campaigns think beyond the format and consider the full context.
Why Real-World Advertising Matters
People spend a significant portion of their time outside the home, commuting, shopping, travelling and socialising. OOH ensures brands are present in these everyday moments, with the ability to reach a large proportion of the population on a weekly basis. Positioned in high-footfall environments such as city centres, transport hubs and retail destinations, captures attention at scale. With 71% of people saying they notice billboards while travelling, it reinforces its ability to capture attention in real-world environments.
Repeated exposure in these environments builds familiarity, strengthens recognition and contributes to long-term brand trust. Research consistently shows that traditional formats are among the most trusted forms of advertising. The physical nature of the channel also creates a sense of accountability, reinforcing the perception that brands are established and reliable.
Digital OOH strengthens this further by combining physical presence with digital flexibility. Creative can be refreshed in real time, aligned with data signals from paid social, search and online video, and optimised to context as a campaign progresses. This integration reinforces recognition, improves overall effectiveness and, when woven into a broader media mix, drives more efficient performance across the whole media plan.
Iconic DOOH Sites in the UK
Some digital OOH sites go beyond audience reach to become cultural landmarks. These ‘fame’ formats are designed to create impact, generate conversation and drive earned media beyond the screen itself.
London’s Piccadilly Lights is a prime example. Located in the West End, it reaches large audiences while also gaining global visibility through social and press coverage. Campaigns such as Coca-Cola’s real-time creative executions have used the screen to drive both on-site engagement and social amplification.
In Manchester, The Printworks is another high-impact location, combining large-format digital screens with a high-footfall leisure destination. Campaigns here often benefit from extended dwell time and audience engagement. Similarly, Liverpool Media Wall offers premium city-centre visibility, with campaigns designed to capture attention in a busy retail and commuter environment while also delivering strong visual impact.
These locations demonstrate how premium DOOH sites can turn a single placement into a multi-channel campaign moment, combining real-world impact with digital amplification.
Reaching Audiences in the Right Moments
Effective media planning combines reach with relevance and OOH, enabling brands to align messaging with context. Commuters on busy roads, shoppers near retail destinations, gym users in leisure environments and travellers in airports are all experiencing different mindsets and behaviours. Understanding how people move through a location and when is what turns a good OOH site into the right site.
Footfall data helps to identify where audiences are most concentrated at the times that matter most. Research shows that consumers exposed to OOH are 48% more likely to visit a store, demonstrating its role beyond awareness and into real-world action. This creates an opportunity to communicate in moments where decisions are being shaped. For example, advertising near supermarkets or high streets can influence purchase intent close to the point of sale.
How OOH & DOOH Works: Buying, Measuring & Providing Impact
The link between OOH exposure and online behaviour is well documented. Studies show that around 46% of consumers search for a brand online after seeing an OOH ad, with 40% of consumers visiting the brand’s website within minutes of exposure. High-traffic environments that provide repeated daily exposure reinforce messaging over time, and
DOOH introduces flexibility and dynamism. Campaigns can serve different messages depending on the time of day and the weather – optimising towards whichever creative is best for the campaign. Digital roadside panels, large-format city centre screens and networked environments across rail, airports and shopping centres allow campaigns to be updated in real time and tailored to context. This shift is significant, with digital formats now accounting for around two-thirds of total OOH revenue, highlighting how quickly the channel has evolved into a more flexible, data-driven medium. Research by Ocean Outdoor and Lumen found that premium large-format DOOH gains five times more attention than online digital formats and holds attention 5.5 times longer than social media content.
OOH alongside Digital Channels
OOH and digital channels are most effective when planned together, as they operate at different points in the same customer journey. OOH builds initial awareness at scale in real-world environments, while digital channels reinforce the message through more targeted, repeated exposure. When a consumer sees a brand on a billboard and later encounters the same campaign in their social feed, it registers not as a separate ad but as a coherent and cumulative point of influence.
This joined-up approach builds frequency across channels, accelerating familiarity and strengthening campaign recall. The more consistent the visual identity and messaging, the more quickly that familiarity compounds, helping to drive preference over time. This is why planning channels as part of a connected ecosystem, rather than in isolation, is critical to performance. We explore this further in our blog on how to make multi-platform campaigns work.
What This Means for Media Planning
In practice, this means treating OOH as the foundation of broad visibility rather than a standalone placement. Social and other digital channels then build on that exposure with more granular targeting, extending reach and adding frequency at lower cost. Each channel plays a distinct role, and the plan is stronger for that division of labour.
The most effective plans are built around this coordination. By aligning creative, timing and audience targeting across channels, brands can maximise frequency without increasing waste, ensuring every exposure adds value and moves audiences closer to action.
How Route Plans Out-of-Home
At Route, OOH planning is built around behavioural audience segments, using movement data and audience profiles to understand how people interact with different environments. Campaigns are planned around reach and frequency data, with site selection informed by footfall data and audience behaviours.
Our focus is simple: clear strategy, integrated planning and measurable performance. If OOH is part of your next campaign, or if you want to understand how it can strengthen your wider media strategy,speak to Route about how to make it work harder for your brand.