1. Civil Engineering Department, Transportation Division, Yıldız Technical University, Davutpaşa Campus, 34220 Esenler-İstanbul, Turkey
2. Faculty of Arts and Science, Department of Statistics, Applied Statistics, Yıldız Technical University, Davutpaşa Campus, 34220 Esenler-İstanbul, Turkey
3. Civil Engineering Department, Transportation Division, Istanbul University, 34320 Avcılar, Istanbul, Turkey