Multi-purpose Billboards
Some billboards are not used only for advertising ends; they can be multi-purpose, meaning that they can have more than one function. So, an advertising sign can integrate its main purpose with telecommunications antenna and/or public lighting support. Usually the structure has a steel pole with a coupling flange on the above-fitted advertising billboard structure that can contain telecommunications antennas. The lighting power supply cables and any possible antennas are placed inside of the structure and fastened on appropriate steel wires.
Read more about this topic: Billboard