Atlantic Highway Sign - Manufacturing Back

First, the reflective material is pressed onto the sign blank to provide the reflective background of the sign. The semi-transparent film is then electronically cut for maximum precision to provide the lettering and color of the sign and is adhered directly to the reflective surface. The final layer is a protective film which shields the sign against the elements and even Graffiti.

There are a number of other attributes that contribute to the visibility of a street sign:

Target Value
Target value is a sign's ability to stand out from it's surroundings. The three most important contributors are brightness, color, and size.
Contrast Ratio
Contrast between a letter and the background of a sign is vital to legibility.
Letter Size
A common ratio for determining letter height is one inch for fifty feet. Typical driving speeds require six inch letters on street name signs for optimum legibility.
Letter Spacing
Studies have shown that increasing the spacing between letters improves legibility.
Border
A white border around a sign helps to set a sign off from it's surroundings.