Usually yes, and assuming otherwise costs customers measurement they could have had. A single highway board in a mid-sized market delivers impression volume in the millions across a typical flight.

One board on a highway in a mid-sized market will produce several million impressions over a normal flight. That clears the bar for an exposure-based brand lift survey, which is the study customers in small markets most often assume is out of reach.

Rural and remote is not the same as low traffic. A single well-placed highway unit can outperform several street-level units in a larger market on exposure volume.

Match rates swing much more on small campaigns. The 10 to 15 percent typical rate is an average across scale, and a two-unit campaign can land well off it in either direction. This is the argument for running a first test at real scale rather than at the minimum.

Causal lift needs control markets. A campaign in your only two markets has no clean comparison available. Search lift still runs on a single market; halo effect does not.

The web traffic your site needs for web attribution is measured nationally rather than by market, so a small-market advertiser with a small site is the case where exceptions get considered. Ask rather than assuming.

Brand lift, which needs no first party data and works at this scale, provided you have at least three units or points of interest in the market and the campaign runs at least two weeks. Those two requirements catch small campaigns more often than any impression floor does.

Footfall attribution, if the locations are your own stores and sit within about five miles of the units. Search lift, which tolerates a single market, provided the brand term has had search activity in the past two months.

Causal lift only if you have markets without OOH to compare against. If you do not, tell us early so the measurement plan can be built around the studies that do work rather than around the one that does not.

Myth: Small or remote markets cannot support these studies.

Reality: One highway board in a mid-sized market delivers impression volume in the millions over a typical flight.