Professor Dulcy M. Abraham along with Assistant Professor Javier Irizarry, Southern Polytechnic State University and Assistant Professor Katy L. Simonsen, Department of Statistics, Purdue University, collaborated to research the direct observation of steel erection activities and statistical analysis of task duration data. This data included personal protective equipment (PPE), elevation of the work area, environmental conditions such as temperature and humidity, and worker performance in the form of task durations.