Streets free of fly posting

Our goal
A representative sample of sites around the borough are inspected and graded according to the amount of fly posting in that area. Each site is given a grading assessment based on the 4-point scale set out in the Code of Practice on Litter and Refuse (COPL&R), ranging from Grade A (clean) to Grade D (heavily affected). This measure is based on the percentage of sites surveyed for fly posting that do not fall below a Grade B.
Bigger values are best