1. OSHA Authorized Trainer and Ph.D. Candidate, Dept. of Civil and Construction Engineering, Western Michigan Univ., Kalamazoo, MI 49008 (corresponding author). .
2. Professor and Chair, Dept. of Civil and Construction Engineering, Western Michigan Univ., Kalamazoo, MI 49008.
3. Professor and Director, Dept. of Industrial and Entrepreneurial Engineering and Engineering Management, Human Performance Institute, Western Michigan Univ., Kalamazoo, MI 49008.
4. Professor and Chair, Dept. of Industrial and Entrepreneurial Engineering and Engineering Management, Western Michigan Univ., Kalamazoo, MI 49008.