Method and apparatus to prevent ghosting in a recycled road sign

摘要

One example embodiment disclosed herein includes a sign substrate including a front side and a back side, a reflective traffic sign layer to reflect a light to display a traffic message to traffic, the reflective traffic sign layer coupled to the front side of the sign substrate, a light blocking layer masking the reflective traffic sign layer to prevent the light from reflecting a ghost image of the message through the light blocking layer to the traffic and a replacement reflective traffic sign layer disposed on top of the light blocking layer, the replacement reflective traffic sign layer to reflect the light to display a reflected replacement message to the traffic.