Placement Strategies: High Fencing

In terms of visibility plus duration (days or weeks as opposed to hours) one of the more effective placement strategies is fencing on top of high retaining walls. Although it usually requires a bit of hunting around and climbing a fence or two, it's rarely as difficult or dangerous as it appears and well worth it if you want your message to be read. Signs appearing along or immediately after the outside of broad curves, as shown, work best.