1. Professor, Dept. of Civil Engineering, Univ. of Kentucky, 265 OHR, Lexington, KY 40506-0281 (corresponding author).
2. Professor, Dept. of Surveying Engineering, National Technical Univ. of Athens, 9 Iroon Polytechneiou, Athens, GR 15780, Greece.
3. Researcher, Dept. of Surveying Engineering, National Technical Univ. of Athens, 9 Iroon Polytechneiou, Athens, GR 15780, Greece. ORCID: .
4. Engineer, Dept. of Surveying Engineering, National Technical Univ. of Athens, 9 Iroon Polytechneiou, Athens, GR 15780, Greece.