1. Ph.D. Student, Dept. of Civil and Environmental Engineering, Norwegian Univ. of Science and Technology, Trondheim NO-7491, Norway (corresponding author). ORCID: .
2. Principal Engineer, Norwegian Public Roads Administration, Directorate of Public Rd., P.O. Box 8142 Dep, Oslo 0033, Norway.
3. Associate Professor, Dept. of Civil and Environmental Engineering, Norwegian Univ. of Science and Technology, Trondheim NO-7491, Norway.