Mississippi State University
Bethel, Cindy L.
Carruth, Daniel W.
Swan, J. Edward, II
Date of Degree
Graduate Thesis - Open Access
Master of Science (M.S.)
James Worth Bagley College of Engineering
Department of Computer Science and Engineering
The state of the art of autonomous vehicles requires operators to remain vigilant while performing secondary tasks. The goal of this research was to investigate how dynamically allocated secondary tasks affected driving performance, cognitive load, and situation awareness. Secondary tasks were presented at rates based on the autonomy level present and whether the autonomous system was engaged. A rapid secondary task rate was also presented for two short periods regardless of whether autonomy was engaged. There was a three-minute familiarization phase followed by a data collection phase where participants responded to secondary tasks while preventing the vehicle from colliding into random obstacles. After data collection, there was a brief survey to gather data on cognitive load, situation awareness, and relevant demographics. The data was compared to data gathered in a similar study by Cossitt  where secondary tasks were presented at a controlled frequency and a gradually increasing frequency.
Automotive Research Center
Patel, Viraj R., "Using dynamic task allocation to evaluate driving performance, situation awareness, and cognitive load at different levels of partial autonomy" (2023). Theses and Dissertations. 5942.