1. Assistant Professor, Dept. of Civil Engineering, Lebanese American Univ., 211 East 46th St., New York 10017, NY (corresponding author). ORCID: .
2. Manager, Airport Pavement R&D Section, Federal Aviation Administration, William J. Hughes Technical Center, Bldg. 296, Atlantic City International Airport, NJ 08405.
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557.
4. Retired, Per Ullidtz ApS, Nordlysvænger 8, Helsingør 3000, Denmark.