1. Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, US
2. Vanasse Hangen Brustlin, Inc., North Carolina State University, Raleigh, NC, US
3. Institute of Transportation Research and Education, Raleigh, NC, US
4. College of Engineering, Institute for Transportation Research and Education, North Carolina State University, Raleigh, NC, US
5. North Carolina State University, Raleigh, NC, US
6. Kittelson and Associates, Inc., North Carolina State University, Raleigh, NC, US