This chapter provides human factors design guidelines relevant to the displays associated with ATIS devices. ATIS displays represent the primary method used to communicate ATIS messages to the drivers, and, therefore, their design is important to the overall usability and acceptance of ATIS devices. The following design topics are included in this chapter:

• Symbol Contrast
• Symbol Height
• Symbol Luminance Uniformity
• Symbol Font
• Symbol Width-to-Height Ratio
• Symbol Strokewidth-to-Height Ratio
• Symbol Spacing
• Symbol Color
• Symbol Versus Text Presentation of ATIS/CVO Messages