1. Assistant Teaching Professor, Drexel Univ., 3141 Chestnut St., Philadelphia, PA 19104 (corresponding author). ORCID: .
2. Assistant Professor, Angelo State Univ., San Angelo, TX 76909.
3. Research Engineer, Naval Facilities Engineering Command, Oxnard, CA 93043.
4. Jewel McAlister Smith Professorship in Engineering, Univ. of Texas at Austin, 10100 Burnet Rd., Austin, TX 78758.
5. Assistant Vice Chancellor for Research and Adnan Abou-Ayyash Centennial Professor in Transportation Engineering, Univ. of Texas at Austin, 10100 Burnet Rd., Austin, TX 78758.
6. Emeritus Professor, Univ. of Texas at Austin, 10100 Burnet Rd., Austin, TX 78758.