Even though there is a post over this ítem I am not really sure about this two áreas and the need of signage.

In our builiding there are 4 entrances to the underground car park. In the whole building it is prohibited to smoke

If only the tobacco smoke can come from a person walking by in the parking entrance (it is forbidden by the Spanish law inside the buildings), and the Access ramp is longer than 25 meters, do we need to put a Prohibited Smoking signal in the Street?

And the other question a bit related it is about Loading docks. In the same building, there is asmall area of loading dock. If there is no permanent occupancy of workers (they load or discharge ocasionally) do we need to put the signal of non smoking in the entrance?