Geo-fencing for outdoor advertising in London: a practical guide

London is not one market. The City at 8am, Soho at lunchtime, Shoreditch at midnight and the streets around a stadium on match day are different audiences in different moods. Outdoor advertising has always known this, but a fixed site can only ever be in one place.

With geo-fencing, a mobile screen can decide what to show based on where it is and what time it is, play by play. This guide explains how that works for outdoor, how to plan zones and dayparts in London, and how to measure the result.

What geo-fencing means for outdoor

A geo-fence is a virtual boundary drawn on a map. When a connected screen is inside that boundary, a set of rules applies, usually covering which creative plays, how often and at what times.

In street-level media, where screens are carried on delivery riders’ bags, every screen reports its location continuously. When a rider enters a zone, the screen switches to the creative scheduled for that zone and time, and when they leave, it switches back. Every play is logged with a timestamp, GPS position and screen ID, so you can see exactly where each zone’s creative ran. If the format is new to you, start with What is street-level media?.

What geo-fencing does not do

Geo-fencing controls what plays in a zone. It does not move screens into that zone. Riders go where orders take them, which in practice means the busiest food, retail and residential streets in the city. Good planning works with that. You choose zones where rider activity and your audience overlap, instead of picking a single corner and hoping.

The building blocks

Zones

A zone can be as broad as a borough or as tight as a few streets. Most useful London zones end up neighbourhood-sized, big enough to see regular rider traffic and small enough to mean something to the audience.

Common zone types:

• Neighbourhoods, such as Soho, Shoreditch, Brixton, Camden or Clapham.
• Clusters: a group of streets around a station, market or high street.
• Venue halos: a radius around a stadium, arena, theatre district or campus.
• Exclusion zones, where certain creative should never play, such as near schools for age-restricted categories.

Dayparts

A daypart is a window of time. Combined with a zone, it lets you say “show this here, at this time”. Typical London dayparts might be morning commute, late morning, lunch, afternoon, early evening, late night and weekend daytime. You can also set one-off windows around a specific event.

Triggers

Live data streams add another layer, switching creative when a condition changes. Weather is the classic example: a cold drink in sunshine, a hot one in the rain. Event timing is another, such as moving to post-match creative after the final whistle.

Worked examples for London

The examples below illustrate how zones, dayparts and triggers combine. None of them is a client campaign.

Soho at lunchtime

Soho’s streets fill with office workers, shoppers and visitors between late morning and early afternoon, and several of them, Carnaby Street among them, are pedestrianised. Few of those streets carry any fixed advertising.

A quick-service restaurant might set a Soho zone with a late-morning to early-afternoon window, running a short lunch offer that names the nearest branch. Outside that window the same screens could show brand creative, or nothing from that campaign at all.

Shoreditch in the evening

Shoreditch changes after dark. From early evening the audience shifts towards after-work drinks, dinner and nightlife, and late at night towards food and getting home.

A drinks brand might run an early-evening message, then hand over to a late-night food or ride-home partner after a set hour. A streaming service could use the same zone to promote a Friday night release. Weekend and weeknight evenings can carry different creative, too.

Match days

London has several major stadiums, including Wembley, the Emirates, Tottenham Hotspur Stadium, Stamford Bridge and the London Stadium. On match days the surrounding streets fill with fans for a few concentrated hours.

A sportswear or snack brand might set a venue halo around a stadium that is only active on fixture days, with creative running in three phases:

1. Pre-match: build-up messaging as fans arrive.
2. In play: a lighter rotation, since most fans are inside.
3. Post-match: a new message timed for the crowd leaving, perhaps about food or getting home.

The same approach works for concerts, big theatre nights and exhibitions.

Weekday City and Canary Wharf

The Square Mile and Canary Wharf run on a strongly weekday rhythm. A B2B brand, a financial product or a lunch delivery service might run in these zones only on weekdays, weighted towards breakfast and lunch.

Residential evenings

Delivery riders spend much of the evening on residential side roads, delivering to people at home. For brands that want to be seen near the front door, such as grocery, home services or streaming, residential zones in the early evening reach people where billboards rarely go.

How to plan a geo-fenced campaign

1. Start with the audience and the moment

Before drawing any zones, write down who you want to reach and when they are most receptive. “Office workers deciding on lunch” is a better starting point than “central London”.

2. Pick zones where riders and your audience overlap

Riders are most active where orders are dense, which tends to mean busy food, nightlife and residential areas. Your media partner should be able to show you historical activity by zone so you can check coverage before booking.

3. Set dayparts to match behaviour

Keep windows tight enough to stay relevant. A lunch message that runs until 6pm stops being about lunch.

4. Write creative per zone and daypart

Plan a small set of variants instead of one generic ad, and name the neighbourhood, the time or the event where it helps. Our piece on reaching Gen Z when they skip every ad covers creative principles for street-level screens.

5. Add exclusions

Check category rules under the UK advertising codes and set exclusion zones where you need them. They are much easier to plan upfront than to add mid-campaign.

6. Decide how you will measure it

Geo-fencing makes testing straightforward. Leave some comparable zones or hours without the campaign so you have a baseline.

Measuring geo-fenced campaigns

Every play in a geo-fenced campaign is logged with its zone, so reporting can be broken down by area and daypart, and Curb’s advertiser dashboard lets you filter results by zone. That answers the practical questions. Which zones delivered the most plays? Which dayparts carried the most estimated impressions? Did footfall or orders rise in active zones compared with control zones?

Impression estimates are modelled per play from location, time and footfall data, so they reflect how busy each zone is at each hour. For a fuller explanation of play logs, impression modelling and data feeds, see Proof of play: how to measure mobile DOOH campaigns.

Common mistakes

• Zones that are too small. A single street may not see enough rider traffic for consistent delivery.
• Too many variants. Each version needs enough plays to learn anything from, so start with a handful.
• Ignoring the clock. A good zone at the wrong time of day will underperform.
• Low-resolution creative. Localised messages often include small details such as addresses or times, and they need a screen that can show them clearly. That is where full-HD matters; see LCD vs LED screens for mobile advertising.
• No control group. Without a baseline, it is hard to show what the campaign changed.

Summary

Geo-fencing turns a fleet of mobile screens into a set of local campaigns running at once, which suits a city where a few streets can separate completely different audiences. Start with the moment and choose zones where rider activity and your audience overlap. Keep dayparts tight, write creative for each context, and plan the measurement from day one.

Planning a London campaign

The advertisers page explains how Curb’s zones and scheduling work. If you have a neighbourhood, event or daypart in mind, our media pack sets out the options in more detail, and you can request it here.