Implementation Initiatives of the Mechanistic-Empirical Pavement Design Guide in Countries with Insufficient Design Input Data – The Case of Lebanon

  • Ghassan R. ChehabEmail author
  • Rana Hajj Chehade
  • Lamis Houssami
  • Rayane Mrad
Conference paper
Part of the Sustainable Civil Infrastructures book series (SUCI)


The new mechanistic-empirical pavement design guide (M-EPDG) delivers a state-of-the-art and practice design procedure that eliminates the AASHTO 1993 empirical design procedure deficiencies. Huge advances with respect to traffic inputs, materials characterization and environmental impacts are integrated in its performance prediction methodology. However, achieving accurate and reliable design and performance prediction results using the M-EPDG requires extensive data collection. This presents researchers and practitioners with major challenges as they plan and work towards full adoption of the M-EPDG. Similar to the case of highway agencies in the U.S., it is imperative for highway agencies outside the U.S., such as those in the MENA region, to initiate a comprehensive and customized implementation plan for adoption of the M-EPDG. The main objective of this study is to present a methodology for facilitating the adoption of the new design guide in such countries. Firstly, the paper presents the current flexible pavement design practices in the countries lacking design input data sufficient for utilizing the M-EPDG. Then, the paper describes the efforts required to gather the necessary input data and presents an approach for utilizing the M-EPDG software. Sensitivity analyses and implementation initiatives are performed for each of the M-EPDG AASHTOWare design input modules, with Lebanon serving as a case study. Performance results are used to determine which of the design parameters require country-specific information, and proposes a plan for acquiring this information and investigates its effectiveness and reliability. Finally, the paper presents recommendations for implementation of the M-EPDG in such countries.



The authors appreciate and thank the University Research Board at the American University of Beirut for funding this study. Thanks also go to our colleagues Ms. Zeina Bsaibes, Ms. Yara Hamdar and Mr. Hussein Kassem who helped in completing this study.


  1. 1.
    Monismith, C.L.: Evolution of long-lasting asphalt pavement design methodology: a perspective. In: International Symposium on Design and Construction of Long Lasting Asphalt Pavements. Auburn University, Alabama, USA (2004)Google Scholar
  2. 2.
    Pavement Interactive: 1993 AASHTO Flexible Pavement Structural Design. Pavement Interactive (2008)Google Scholar
  3. 3.
    Pierce, L., Smith, K.: Continuously Reinforced Concrete Pavement: Design Using the AASHTOWare Pavement ME Design Procedure. Federal Highway Agency FHWA-HIF-13-025 (2013)Google Scholar
  4. 4.
    Applied Research Associates Inc. Manual 3: Design of New and Reconstructed Flexible Pavements, Chapter 3. Publication NCHRP 1-37A, National Cooperative Highway Research Program, Transportation Research Board, National Research Council (2004)Google Scholar
  5. 5.
    David, T., Robins, M., Tran, N., Rodezno, C.: Flexible Pavement Design-State of the Practice. Rep. Auburn University. National Center of Asphalt Technology (NCAT), Report 14-04 (2014)Google Scholar
  6. 6.
    Linda, P., Smith, K.: AASHTO MEPDG Regional Peer Exchange Meetings Final Technical Report. Publication no. F H W A - HI F - 15 -0 21. Wisconsin Department of Transportation. N.p., Federal Highway Adminstration (2015)Google Scholar
  7. 7.
    Nantung, T., Chehab, G., Newbolds, S., Galal, K., Li, S., Kim, D.: Implementation initiatives of the mechanistic-empirical pavement design guide in Indiana. J. Transp. Res. Board 1919(2005), 142–151 (2005)CrossRefGoogle Scholar
  8. 8.
    Souliman, M., Mamlouk, M., Zapata, C., Cary, C.: Data collection to support implementation of the mechanistic-empirical pavement design guide for county roads. J. Transp. Res. Board 2225, 67–77 (2011)CrossRefGoogle Scholar
  9. 9.
    Ayyala, D., Chehab, G., Daniel, J.: Sensitivity of M-EPDG Level 2 and 3 Inputs using Statistical Analysis Techniques for New England, International Review of Civil Engineering (I.RE.C.E.) (2010)Google Scholar
  10. 10.
    Khattab, A., El-Badawy, S., Al Hazmi, A., Elmwafi, M.: Evaluation of Witczak E* predictive models for the implementation of AASHTOWare-Pavement ME Design in the Kingdom of Saudi Arabia. Constr. Build. Mater. 64, 360–369 (2014)CrossRefGoogle Scholar
  11. 11.
    Sadek, H., Masad, E., Sirin, O., Al-Khalid, H., Sadeq, M., Little, D.: Implementation of mechanistic-empirical pavement analysis in the State of Qatar. Int. J. Pavement Eng. 15(6), 495–511 (2014)CrossRefGoogle Scholar
  12. 12.
    Tran, N., Hall, K.: Development and Significance of state-wide volume adjustment factors in mechanistic—empirical pavement design guide. Transp. Res. Rec. J. Transp. Res. Board 2037, 97–105 (2007)CrossRefGoogle Scholar
  13. 13.
    Lebanon, Council of Development and Reconstruction (CDR): Schéma D’aménagement Du Territoire Libanais. By DAR and Institut D’Aménagement Et D’Urbanisme De La Région D’Ile-de-France (IAURIF) (2002)Google Scholar
  14. 14.
    European Commission: Heavy Goods Vehicles (2016)Google Scholar
  15. 15.
    El Hajj Chehade, A.: Chairman. Ministry of Interior; Department of Traffic Machinery and Vehicles (R. Hajj Chehade, Interviewer) (2016)Google Scholar
  16. 16.
    Chehab, G.: Associate Professor. American University of Beirut; Department of Civil and Environmental Engineering. (R. N. Mourad, & R. Hajj Chehade, Interviewers) Beirut, Lebanon. “Vehicle Weight Classes & Categories.” Vehicle Weight Classes & Categories. U.S. Department of Energy: Alternative Fuels Data Center, n.d. June 2016 (2016)Google Scholar
  17. 17.
    Al-Monitor, S.: How the War on Syria Left Its Mark on Lebanon’s Economy (2016)Google Scholar
  18. 18.
    Alduchov, O., Eskridge, R.:. Improved Magnus’ form approximation of saturation vapor pressure. National Climatic Data Center, National Oceanic and Atmospheric Administration, Asheville, North Carolina (1995)Google Scholar
  19. 19.
    Dawatec: Solar Irradiance in Lebanon (2013)Google Scholar
  20. 20.
    Schwartz, W., Elkins, G., Li, R., Visintine, B., Forman, B., Rada, G., Groeger, J.: Evaluation of LTPP Climatic Data for Use in Mechanistic-Empirical Pavement Design Guide Calibration and Other Pavement Analysis. Federal Highway Administration FHWA-HRT-15-01: 1-3 (2015)Google Scholar
  21. 21.
    Applied Research Associates Inc.: Guide for Mechanistic-Empirical Design of New and Rehabilitated Pavement Structures, Appendix CC-1: Correlation of CBR Values with Soil Index Properties. Publication NCHRP, National Cooperative Highway Research Program, Transportation Research Board, National Research Council (2001)Google Scholar

Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • Ghassan R. Chehab
    • 1
    Email author
  • Rana Hajj Chehade
    • 1
  • Lamis Houssami
    • 1
  • Rayane Mrad
    • 1
  1. 1.Department of Civil and Environmental EngineeringAmerican University of BeirutBeirutLebanon

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