A marketing director once told me billboards were “spray and pray.” Six months later her brand’s branded-search volume had doubled during a two-screen Gulshan flight, and we had the dashboards to prove which weeks did it. She rebooked. The lesson wasn’t that billboards always work — it’s that measured billboards stop being a matter of opinion.
What billboards do brilliantly
- Unskippable frequency. Commuters repeat the same corridor 250+ times a year. No ad-blocker, no skip button, no algorithm deciding reach.
- Trust signalling. Physical presence reads as financial substance — audiences infer that a brand on a Gulshan screen can afford to be there. Digital ads don’t carry that signal.
- Captive dwell. Dhaka’s signals hold viewers 60–120 seconds. That’s cinema-grade attention at street prices.
- Mass simultaneity. A launch across a city network reaches hundreds of thousands the same evening — priming every other channel you run.
What billboards don’t do
Honesty builds budgets, so: billboards won’t give you click-through rates, granular attribution, or instant remarketing pools. They’re a brand-building and priming instrument. The brands that regret OOH almost always bought it expecting performance-channel receipts.
How to actually measure OOH ROI
| Layer | Metric | How |
|---|---|---|
| Delivery | Verified plays | Daily play-out logs from the operator |
| Exposure | Impressions & frequency | Traffic data × flight length |
| Response | Branded search lift | Compare search volume before/during/after |
| Conversion | Promo codes, QR scans | Location-specific offers on the creative |
| Brand | Recall & consideration | Pre/post flight surveys for larger spends |
Frequently asked questions
What’s a realistic cost per thousand impressions?
On high-traffic Bangladeshi screens, OOH CPMs routinely land below comparable digital video — the audience is just measured differently. Request placement-level numbers and run the division yourself.
How long before billboards “work”?
Recall starts building immediately; measurable search lift typically shows within two to four weeks; brand-tracking movement wants a quarter of sustained frequency.
Which businesses see the strongest returns?
Categories with broad audiences and considered purchases: banks, telecoms, real estate, autos, education, FMCG launches. Hyper-niche B2B with ten buyers nationally should spend elsewhere — and we’ll say so.
Run the numbers on a real screen
The worth-it question has a placement-specific answer. Pick a corridor, request the media kit, and you’ll get verified traffic, audience profile, and rates — everything needed to calculate ROI before spending a taka.