Traffic signal backplates are designed to properly shield a traffic signal from background obstructions. The backplate provides a dark silhouette that isolates the signal face from store lights, signs, sunlight and other environmental conditions that tend to reduce the brilliance of the light indications. A study found that back-plating can cut the number of vehicle accident claims at intersections by nearly 15%.
Vacuum Formed backplates include a formed flange around the edges of the backplate to add strength and rigidity over and above a typical flat poly backplate. This allows the backplate to keep its strength and shape in extreme temperatures, continuous direct sunlight, and severe weather conditions.