The field of petrochemical refining could prevent incidents and improve processes through the application of measures of Situation Awareness (SA). Currently there are multiple measures of SA, with the Situation Awareness Global Assessment Technique (SAGAT) and the Situation Present Assessment Method (SPAM) being the most promising based on a number of theoretical and objective assessments. As researchers seek to apply measures of SA to the field of petrochemical refining, they will need more information on the applicability of these measures. To this end, this research sought to examine specific objective qualities of SAGAT and SPAM when used to assess petrochemical plant operator SA in a medium fidelity simulator. Hydrocracking plant operators participated in a simulation of a loss of hydrogen to their simulated plant, where SA was assessed in addition to a set of performance variables, and workload. Results of this investigation showed SAGAT Accuracies to be predictive of certain performance variables. Although SPAM and SAGAT were not sensitive to differences in task workload, neither measure was significantly intrusive on primary task performance suggesting that these metrics can be used in future experiments in petrochemical refining.
|Commitee:||Burress, Mary Ann, Vu, Kim-Phuong L.|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 55/01M(E), Masters Abstracts International|
|Subjects:||Industrial engineering, Psychology|
|Keywords:||Human factors, Petrochemical, Process control, Refining, Simulation, Situation awareness|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be