High Intensity and Diamond Grade Meet DOT and MUTCD State and Federal Guidelines
MUTCD Information: The Stop Ahead (W3-1) sign shall be installed on an approach to a primary traffic control device that is not visible for a sufficient distance to permit the road user to respond to the device. The visibility criteria for a traffic control signal shall be based on having a continuous view of at least two signal faces for the distance specified in Table 4D-2.