Investigation of Classification Parameters and Assumptions for Rigid and Flexible Airfield Pavements

Abstract

Classification of airfield pavement bearing capacity has always been one of the most important tasks for their management and therefore it is important to have a suitable classification and reporting system, which will internationally facilitate the management of airport pavements. Currently the method used for this purpose is the Aircraft Classification Number – Pavement Classification Number (ACN – PCN) of the International Civil Aviation Organization (ICAO) however, practice has shown that there are several difficulties and drawbacks, which encumber the implementation of the method. Theoretical investigations on the method assumptions and background, as well as analyses of field applications have revealed several findings regarding the accuracy and reliability of the reporting system. Related analyses based on data from Greek and international airfield pavement structures have shown that in practice the ACN-PCN system for rigid pavements is less sensitive to background parameters and assumptions, easier to apply and probably more accurate compared to flexible pavements. In addition, critical details which should be considered in order to optimize the accuracy and reliability of the ACN in practice are presented and discussed.