Pilot's Guide to Avionics 2016-2017 - 36
As a conclusion, the WTIC phase 2 report says it is
clear from this study that pilots' perception of symbol
changes while in flight is "frail," leaving many changes
undetected . This "change blindness" is particularly
strong during multitasking such as during single-pilot
operation . Failure to detect a METAR change means the
pilots missed a valuable cue that would prompt them to
ask ATC for a weather update . "The earlier a pilot recognizes the situation, the more time he or she will have to
make a good decision and the more time there will be to
plan a different course of action," Johnson said .
At the direction of the WTIC program, PEGASAS
researchers also examined whether computer apps
might be able to track weather information and notify
pilots of significant changes . This could assist pilots in
making make good decisions in the future as increasing bandwidth makes it easier for pilots to get access
to the weather information they need in the air and on
the ground before takeoff . q
DID YOU NOTICE...?
Continued from page 35
Currently, there are no industry standards for the
display of weather information in the cockpit . This
lack of a standard has resulted in a large variation
in symbols used by commercial vendors, raising
the question as to whether different symbols for
the same weather data have an effect on pilot
perception and behavior .
The WTIC program will not establish standards
and only aims to provide guidance on the best
ways to highlight changing METARS to improve
pilot recognition . There will be a number of ways to
reduce any information gaps in the cockpit and to
achieve the desired level of performance so pilots
will be more likely to realize when key weather
information is changing . There simply is no onesize-fits-all solution .
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