Sherif El-Badawy is associate professor at Mansoura University, Egypt. He serves as the director of Highway and Airport Engineering Laboratory, Director of the Center of Scientific, Experimental, and Technical Services, Mansoura University. He received a BSc degree with honor in Civil Engineering and MSc from Mansoura University, Egypt. Dr. El-Badawy pursued his PhD Degree at Arizona State University (ASU), USA in 2006. He worked as a Postdoctoral Research Associate at ASU from June 2006 until July 2007 and as a Research Fellow at University of Idaho from December 2009 until January 2012. He has more than 20 years of experience in pavement structural analysis, design and characterization. Dr. El-Badawy has participated in several state and national projects during his employment in the US. He was one of the team members under Professor Witczak in the NCHRP 1-37A and 1-40D Projects which focused on the development of the Mechanistic-Empirical Pavement Design Guide (MEPDG). He serves as a TRB Committee Member on Flexible Pavement Design (AFD60) since April, 2012. He is an elected board member of the Middle East Society of Asphalt Technologists (MESAT), a member of the International Geosynthetic Society (IGS), Transportation and Traffic Society (TTS), International Association of Computer Science and Information Technology (IACSIT), and Chi-Epsilon Honor Society. He developed and taught many undergraduate and postgraduate course in USA and Egypt. His research interest focuses on pavement material characterization and modeling, Mechanistic-Empirical pavement design methods, and traffic characteristics. Dr. EL-Badawy was the Chief Editor of the ASCE GPS “Innovative Technologies for Severe Weathers and Climate Changes”.  Through research and graduate advising, he published more than 70 technical publications and reports. Ragaa Abdelhakim is an assistant professor at Tanta University, Egypt. She received a BSc degree with honor in Civil Engineering (Structural Engineering) from Tanta University, Egypt. Dr. Abdelhakim pursued her MSc and PhD Degrees at Tanta University in Civil Engineering (Public Works Engineering). She worked as an assistant Professor in civil Engineering Department, Faculty of Engineering, Delta University for Science and Technology from June 2010 until January 2014. She started working in Tanta University since 2014, and she was a Fulbright visiting scholar at Texas A&M University in the Academic year 2017/2018. She has taught many undergraduate and postgraduate courses. Her research interest focuses on pavement material characterization and modeling, Mechanistic-Empirical pavement design methods, and traffic characteristics.

• 1.Performance evaluation of ultra-thin pavement seals in low-volume roads.- 2.Reuse of oil drilling cuts for road construction in the eastern region of colombia.- 3.Pavement friction prediction for single and multiple lane rural roads.- 4.Improvement of rheological properties of asphalt binder by adding composite montmorillonite nanoclay.- 5.Improving mechanical properties of hot mix asphalt using different additives in libya.- 6.Evaluating falling weight deflectometer back-calculation software for aircraft pavement strength rating.- 7.Estimating voc emissions from asphalt pavement.- 8.Foamed bitumen base for expedient airport pavement upgrade: a case study on whitsunday coast airport.- 9.Mechanistic design of foamed bitumen stabilised pavement bases.- 10.Laboratory studies to assess the fatigue behavior of bituminous concrete mix.- 11.Automatic recognition of pavement degradation: case of rif chain.- 12.Asphalt concrete performance combining use of increased reclaimed asphalt content and warm mix additives.- 13.Effect of high ra content on properties of stone mastic asphalt (sma) mixtures - trial section The applicability of recent mechanically stabilized granular layer concept in me pavement design.