Specifications include, but are not limited to: Furnish and install Light Emitting Diode (LED) Lane Use Control Signals as
specified in the Contract Documents or as directed by the Engineer. Within the face, the Lane Use
Control Signal shall contain up to three types of LED displays. One display shall include a red “X”,
yellow “X” and green “Arrow”. Each symbol shall be 18 in minimum tall as shown on the Contract
Documents. The physical appearance of the Lane Use Control Signals shall be a square shape. Each
display shall create the appropriate symbol by a double stroked row of LED pixels. The symbols
shall be clearly visible in normal daylight and nighttime conditions.