Application
LED billboard for roadside advertising
A roadside billboard is read at speed, so the pitch is set from the longest legal viewing distance and the brightness from the direction the sun faces the board.
Distance sets the pitch
Drivers see the board for a few seconds from a hundred metres or more. That distance allows a coarser pitch than a building facade of the same size, and the cabinet cost follows.
Brightness and glare
The board has to hold up against a low sun and still not blind the road at night. Auto dimming follows ambient light through the day.
Cabinets and access
Billboard structures are usually serviced from behind a catwalk or from a platform. Cabinet access and module weight are agreed with the installer, not assumed.
What the road decides, and what it does not
On a roadside board the viewing distance is set by the road, not by the client.
- The distance sets the pitch
- A board is read from 50–200 m at speed. Fort P2.9–P10 covers that range and Fascia's coarse tiers go wider again; a finer pitch than the road can resolve is paid for and never seen.
- The sun and the night set the brightness
- The same board faces low sun in the morning and a dark road at night. 4,500–6,500 cd/m² on Fort with automatic dimming keeps it legible at dusk without glaring into traffic; a fixed-brightness build is the usual complaint from neighbours and drivers.
- The structure sets the access
- At height, service is a catwalk, a platform or a lift — agreed with the installer before the steel is drawn. A board that needs a crane for a module swap is a board that stays dark for a week.
- The site supply sets the power
- Boards are often far from a substation; the supply capacity at the pole is checked before the wall is sized, because it decides the maximum load, not the other way round.
| Room condition | What it rules in | What it rules out |
|---|---|---|
| Read at 100 m and more, at traffic speed | P2.9–P10 on Fort | Fine pitch the road cannot resolve |
| Low sun by day, dark road at night | 4,500–6,500 cd/m² with auto dimming | Fixed-brightness builds that glare after dark |
| Board on a pole, no adjacent structure | Catwalk or platform agreed with the installer | A design that needs a crane per module |
Boundary. We do not handle road permits, planning consent or the local supply upgrade.
What pixel pitch for a roadside billboard seen at 100 m?
P2.9–P10 on Fort covers 50–200 m at traffic speed.
How bright should a roadside LED billboard be?
4,500–6,500 cd/m² with automatic dimming for low sun and night.