1. Postdoctoral Research Scholar, Institute for Transportation Research and Education, North Carolina State Univ., 909 Capability Dr., Raleigh, NC 27695-7908 (corresponding author). ORCID: .
2. Senior Engineer, Kittelson and Associates Inc., 272 N Front St. #410, Wilmington, NC 28401.
3. Director, Highway System, Institute for Transportation Research and Education, North Carolina State Univ., 909 Capability Dr., Raleigh, NC 27695-7908.
4. Professor, Dept. of Civil, Construction, and Environmental Engineering, North Carolina State Univ., Campus Box 7908, Raleigh, NC 27606.