re from captain87
When operating the TCAS in TA mode, a pilot should look out of the window in order to be better aware of the situation and this not because the TA informations and RA instructions are not sure ! The responsibility is always of the captain, who must always well-understand the instruments and computers. If we are flying into a "crowded" controlled-airspace, we must use ATC instructions to be separated from the traffic and TCAS for situation awareness ... if the TCAS gives us a "Traffic Alert" even if ATC do not, we must always follow TCAS. If we are flying in uncontrolled airspaces we use TCAS as the primary source of traffic informations and Visual Inspection for situation awareness ... TCAS informations have anytime priority over visual. I think this is the traffic-philosophy We have to follow anyway.
Cheers
by captain87