Before revision: Glass elements in noise screens can reduce visual obstruction, but require regular cleaning Aesthetic impact on land- and townscape Tendency to get sprayed on with graffiti Creation of spaces hidden from view and social control (e.g.
After revision: Glass elements in noise screens can reduce visual obstruction, but require regular cleaning Aesthetic impact on land- and townscape An expanded target for graffiti, guerilla advertising, and vandalism Creation of spaces hidden from view and social control (e.g.