According to Wikipedia ( public moral space not banned ), "BANS" means, in United Kingdom "A decree that prohibits something, a form of censorship"(
http://en.wikipedia.org/wiki/Ban),
et en France républicaine du 12ème siècle, la proclamation d'un édit, toute espèce de cri impératif, émis d'un centre de commandement d'ordre public (
http://fr.wikipedia.org/wiki/Ban)
For "PUBLIC" i'm sure you don't need assistance,
but anyway, few guidelines...
PUBLIC SPACE (
http://en.wikipedia.org/wiki/Public_space)
ESPACE PUBLIC (
http://www.hypergeo.eu/spip.php?article482) ....
If you have more time to waste, many websites already invested time to lock Ban, Public, Space & Display terminology etc..