access denied no access no further not beyond this point private prohibition public sign stop here warning insiders limited access no public access restriction staff staff only workers 3-D advice blue communicating communication conditional conditions eye-catching glassy indication information informative informing limited-access liquidy no-public-access notification notifying plastic raised security semi-transparent signs staff-only words black clear transparent access barrier barring bollards chips concrete concrete bollards council garden edge edge of council public roadside garden no thoroughfare pillars plants prevention protection public roadside garden pyramid shaped pyramid topped roadside roadside garden shaped shapes wood wood chips artistic artwork color coloration colored colour coloured contrast copper-art copper-work copperwork coppery craftsmanship decorative designed distinctive embossed embossing expressing expression impressed lettering patterned patterns perspectives presentation accessibility appliances availability available bar bars bathroom challenged disability disabled fitters free grab handicap handicapped helpful wheel chair wheelchair entrance hall red telephone