Work Zone - Appendix M

Appendix M: Sign Face Types – A, B, and C

(Added 12/3/2020)

The aim of this document is to illustrate and give examples for the different sign face types as described in the Standard Specifications. The Department’s classifications of different signs can be found in Section 919 of the Standard Specifications. Section 922 describes the reflectivity requirements of temporary signs, and additional requirements can be found in Section 812.

Type A

Type A signs are signs that have both a retroreflective legend, border, and background. A common example of a Type A sign is a stop sign. This sign has a white legend, and a red background. Both the background and legend are reflectorized so they are visible at night. Since the background and the legend are reflectorized, this is a Type A sign. Exhibit M-1: Examples of Type A Signs, R1-1 and R1-2 INSERT IMAGE HERE

Type B

Type B signs are signs that have a non-reflective legend and border but a reflective background. An example of a Type B sign is a common work zone warning sign, like W21-5a. The orange background on the sign is reflective, but the black legend and border on the sign are not. Since the background is reflective but the legend and border are not, this sign is a Type B sign. Exhibit M-2: Examples of Type B Signs, W3-3, W21-5a, R4-1 INSERT IMAGE HERE

Type C

Type C signs are signs that have a reflective legend and border but a non-reflective background. These signs are less common. An example of this sign is the night speed limit signs that have a non-reflective black background and a reflective white legend and border. Exhibit M-3: Example of a Type C Sign, R2-3P INSERT IMAGE HERE