THE DEVELOPMENT OF A TASK NETWORK MODEL OF OPERATOR PERFORMANCE IN A SIMULATED AIR TRAFFIC CONTROL TASK

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Authors
  1. Burbank, N.S.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
A model of operator performance was developed for a simulated air traffic control task. A model of operator performance while carrying out this simulation was constructed using MicroSAINT, a general purpose task network modeling environment. This model incorporated elements corresponing to both the air traffic control task and the human operator. The portion of the model corresponding to the operator was constructed using general principles concerning human performance, including assumptions of single channel processing and constrained optimality on the part of the operator, and task times estimated from sources in the literature. Data was obtained from both actual operators and numerous runs of the model. Results were gathered from six volunteer subjects under a number of conditions. Each project participated in 25 sessions, each representing a unique combination of number of aircraft and update interval and each of which was 15 minutes in duration. For these same 25 conditions predictions were generated using four versions of the model. Each version of the model was run six times for each of the conditions. The match between simulated and observed results was fairly good for almost all parameters of interest. The model appears to be particularly accurate in predicting the saturation level (the level at which significant numbers of errors start to occur) of the operators. TRUNCATED.
Keywords
Task network simulation;MicroSAINT
Report Number
DCIEM-94-05 —
Date of publication
01 Feb 1994
Number of Pages
110
DSTKIM No
94-02977
CANDIS No
141526
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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