1. Professor, Dept. of Civil Engineering, Istanbul Univ., Avcilar, Istanbul 34320, Turkey.
2. Assistant Professor, Dept. of Civil Engineering, Erciyes Univ., Kayseri 38039, Turkey (corresponding author).
3. Director, Dept. of Research and Development, General Directorate of Turkish Highways, Yücetepe, Ankara 06100, Turkey.
4. Researcher, Dept. of Research and Development, General Directorate of Turkish Highways, Yücetepe, Ankara 06100, Turkey.
5. Assistant Professor, Dept. of Civil Engineering, Afyon Kocatepe Univ., Afyonkarahisar 03200, Turkey.