This was a different world to the television and billboard advertising that agencies understood.

Now, thanks to improved building materials, accurate electronic information displays and, chiefly, the sale of billboard advertising space, shelters have been reinvigorated.

As well as running the billboard advertising group, the stickler for hygiene found time to invent the self-cleaning public super-loo.

Posters are the other common form of billboard advertising, located mostly along primary and secondary arterial roads.

The station gained some notoriety in the late 1990s with a roadside billboard advertising campaign to promote its playing of nine songs in a row.