TY  - JOUR
PY  - 2009//
TI  - False alerts in the ATC conflict alert system: Is there a "cry wolf" effect?
JO  - Proceedings of the Human Factors and Ergonomic Society annual meeting
A1  - Wickens, Christopher D.
A1  - Hutchins, Shaun
A1  - Rice, Stephen
A1  - Keller, David
A1  - Hughes, Jamie
SP  - 91
EP  - 95
VL  - 53
IS  - 1
N2  - We analyzed the extent to which a high false alert rate of the conflict alerting (CA) system in five ATC facilities was the cause of a "cry-wolf" effect, whereby true alerts of a pending loss of separation were associated with either controller failure to respond, or a delayed response. Radar track data surrounding 497 CA's were examined and from these we extracted information as to whether the alert was true or false, whether a trajectory change was (response) or was not (non-response) evident, whether a loss of separation occurred, and the controller response time to the CA. Results revealed an overall 47% false alert rate, but that increases in this rate across facilities was not associated with more non-responses or delayed responses to true alerts, or loss-of-separation. Cry-wolf appeared to be absent. Instead, desirable anticipatory behavior indicated that controllers often responded prior to the conflict alerts.<p /> <p>Language: en</p> 
LA  - en
SN  - 2169-5067
UR  - http://dx.doi.org/10.1177/154193120905300120
ID  - ref1
ER  -