1. Postdoctoral Research Associate, Transportation Safety & Crash Avoidance Research Lab, School of Engineering and Applied Sciences, Western Kentucky Univ., Bowling Green, KY.
2. Undergraduate Student Researcher, School of Engineering and Applied Sciences, Western Kentucky Univ., Bowling Green, KY.
3. Associate Professor of Civil Engineering, School of Engineering and Applied Sciences, Western Kentucky Univ., Bowling Green, KY.