The ORNL Database to Enable Face characterization in Driving Studies (DEFADS) is a dataset created by Oak Ridge National Laboratory to help evaluate algorithms used in an analysis of automobile driver behavior. The sample was developed as part of the U.S. Department of Transportation’s Federal Highway Administration Exploratory Advanced Research Program efforts seeking to understand the role of driver performance and behavior on traffic safety.
DEFADS is the second dataset created by ORNL to emulate aspects of the Second Strategic Highway Research Project’s (SHRP2) Naturalistic Driving Study (NDS). The NDS study collected data from more than 3,000 drivers in personal vehicles between 2010 and 2013, which were then analyzed using algorithms to assess how drivers interact with and adapt to their vehicle, traffic environment, roadway conditions, and traffic control devices, including assessment of collision risk.