“…This echoes the legal desire for certainty and clarity that runs through the law. In addition to this clarity, the cases that revolve around interpretation of signs focus on issues of appropriateness, placement, whether concerns could have been addressed before the sign was posted (Fried and Ammon, 2001) and whether the concerns are brought to the attention of the user. Crucially too, a sign, of itself, will not necessarily be enough to keep someone safe or absolve the person relying on it from liability -what may in fact be needed is a broader system of approach to safety which is supported by, and supportive of, the sign.…”