Section 9. Color Displays-Terminal
3-9-1. COLOR USE
ON ATC DISPLAYS
Color use on
terminal systems was developed jointly with the Terminal Safety and
Operations Support Office and the Terminal Automation Human Factors Team.
This section provides guidelines on the use of color on ATC displays
through a national standard for terminal air traffic displays. These
guidelines are intended to standardize the use of colors across the
terminal systems. Any use outside these guidelines must be developed
jointly with the Terminal Safety and Operations Support Office, the
appropriate Service Area Director, and the Terminal Automation Human
Factors Team. All use of color on ATC displays must fall within these
guidelines, except for MEARTS:
color capabilities exist, the following National Color Standard for
Terminal Systems must be installed:
must be black.
2. Point out
identifier blinking or steady must be yellow.
Rose, range rings, maps A and B must be dim gray.
rundown list as follows:
must be green.
must be blinking green.
must be steady green.
restriction border, fill, and text must be yellow.
blocks owned must be white.
or partial data blocks unowned must be green.
target symbol must be blue.
target extent must be green.
trails must be blue.
track line must be white.
separation line must be white.
color is used to identify critical information it must be used with
another method of notification such as blinking.
color conventions which cannot be violated include red for danger and
yellow for warning.
d. The color
pure blue should not be used for text, small symbols, other fine details,
or as a background color.
all colors that are used including text and symbols are presented in
f. Ensure no
more than two colors are assigned to a single data block.
g. Use of
color in general should be kept to a minimum. When color is used to denote
a specific meaning, e.g., yellow means caution, the number of colors used
on a single display must be no more than six and should be constrained to
the primary colors of red, yellow, green, blue, orange, and cyan. The
optimum number of colors used for coding should be limited to four.
specific colors that are selected for a display must take into account the
ambient environment and the capabilities of the specific monitor.
implementation of color is to be tested in the context and environment to
which it was designed.
j. Color use
needs to be consistent across all of the displays that a single controller
air traffic managers must make all requests for any color changes to color
baseline through the Director, Terminal Safety and Operations Support.