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DOOH advertising in transit venues
Transit venues, airports, buses, train stations, average 3,540 daily impressions per screen on the Trillboards network.
- 54
- Screens on the network
- $2.99
- Average floor CPM, USD per thousand impressions
- 3,540
- Daily impressions per screen
- 4
- US cities
Audiences you can buy here
28 curated segments run on our transit inventory. Each is a live private marketplace deal, addressable from your DSP today.
What you are buying
Transit DOOH delivers the highest single-screen impression count of any category (3,540 daily impressions per screen average) because the audience is concentrated and continuous. CPMs are competitive at $2.99 USD, and the audience archetype skews toward commuters and travelers, high-value for telecom, travel, automotive, and financial-services advertisers.
- commuters
- travelers
- mixed group
Where the supply is
The five US cities carrying the most transit venues on the network. Counts are aggregate, no per-screen identifiers are published.
- 1Long Beach, CA
- 2Key West, FL
- 3Wayzata, MN
- 4New York, NY
Transit venues in the DOOH ecosystem
Transit DOOH is one of the most reach-efficient categories in the global out-of-home market because the audience is concentrated geographically (a single rail platform can see 20,000–50,000 daily commuters) and temporally (peak morning and evening windows). The Trillboards transit footprint includes airport, bus, and train-station inventory. The 3,540 daily impressions per screen is the highest of any category on the platform and is driven by audience density rather than dwell time, each individual impression is brief (5–30 seconds) but raw volume is enormous. Buyer demand concentrates in telecom (national carriers), travel (airlines, hotels, travel-tech), automotive, and financial services.
How the buy executes at transit venues
Each screen runs the Trillboards kiosk app on an open OpenRTB 2.6 connection to our SSP. Roughly every 30 seconds, the device fires an ad request carrying the IAB DOOH inventory descriptor, venue category, location, screen format, plus the live audience measurements from the on-device CV pipeline.
Demand-side platforms bid in under 100 ms. The winning creative ships back, plays in the device's native VAST player, and confirms playback with a signed proof-of-play receipt. Those receipts reconcile daily against partner-reported numbers, which is the record we bill against.
We serve first-party and third-party VAST, OMID viewability where the creative declares it, and device-signed proof of play, meeting the OAAA measurement standards and the IAB DOOH 1.0 specification. Buyers on our OpenRTB endpoint target transit venues through the IAB Audience Taxonomy and the Trillboards segtax=600 namespace, and receive no per-screen identifiers in the bid request.
If you own the venue
Transit operators, typically port authorities or transit-property managers, host Trillboards screens at platform, gate, and concourse positions. Trillboards handles all programmatic demand wiring and reports plays to the operator monthly.
Where these numbers come from
Screen counts, floor CPM, daily impressions and city rankings are aggregated from the Trillboards PostgreSQL system of record (earner_screens, filtered to status = 'approved') joined to the venue taxonomy, snapshotted 2026-05-11 and rebuilt monthly. Floor CPM is the screen-level minimum; cleared CPMs typically run 20–40% higher with demand. Audience index, price and market count come from the live curated catalogue. This page publishes no per-screen, partner or device identifiers.