Originally Posted by
channa
That would make sense. But if the system is to be used for emergency communication or critical safety alerts, it's probably not a good idea to use the signage all the time for motivational garbage. That just trains people to ignore it.
The systems are not used for critical safety alerts, though. The displays simply broadcast relevant flight information and customer service-oriented reminders in an easy-to-locate spot. In fact, when Continental installed the systems at EWR and IAH in the mid-2000s, the manufacturer even reported that CO saw a reduction in safety-related incidents on the ramp. I'll see if I can dig up more on that in the interwebs.
As a method of disseminating important operational safety information, though, it is more of a backup or supplement than a primary source.
EDIT: found it, from 2008...
http://www.mediatile.com/sites/defau...inentalAir.pdf