1. The Dept. of Public Works and Settlements, 34349 Balmumcu, Istanbul, Turkey.
2. Research Assistant, Dept. of Civil Engineering, Civil Engineering Faculty, Yildiz Technical Univ., Barbaros Blvd., 34349 Besiktas, Istanbul, Turkey (corresponding author).
3. Assistant Professor, Dept. of Geodesy and Photographic Engineering, Civil Engineering Faculty, Yildiz Technical Univ., Barbaros Blvd., 34349 Besiktas, Istanbul, Turkey.
4. Professor, Dept. of Civil Engineering, Civil Engineering Faculty, Yildiz Technical Univ., Barbaros Blvd., 34349 Besiktas, Istanbul, Turkey.