@incollection{, 315711388762F84491E63BF8A25998F7 , author={{Adeeb AdeebKhalil} and {Al balqa Applied University}}, journal={{Global Journal of Researches in Engineering}}, journal={{GJRE}}2249-45960975-586110.34257/gjre, address={Cambridge, United States}, publisher={Global Journals Organisation}2223554 } @book{b0, , title={{Traffic and highway engineering 4 th edition chapter 19}} , address={Nicholas J. Garber. 2} National Asphalt Training Center By FHWA } @book{b1, , title={{Principles of Pavement Design 2 nd edition chapter 1}} , publisher={Yoder Ej} }