Abstract
Airport pavements are widely constructed as airport runways, taxiways, and aprons. The airport traffic should be considered during the design stage of airport pavements before the construction. To protect airport pavements from negligent overload, a pavement strength rating system and an aircraft load classification system are adopted. Under the rating systems developed by the International Civil Aviation Organization (ICAO), Aircraft Classification Number (ACN) and Pavement Classification Number (PCN) are calculated to assess the aircraft loads and the load-carrying capacity of the airport pavements for unrestricted operations. With the increase in the air transport demand, increasing attention on the continuous evaluation of airport pavement conditions is introduced to airports across the globe. The load-carrying capacity can be evaluated to assess airport pavement conditions by calculating the value of PCN continuously during the service cycle of pavements. The value of PCN can be estimated by testing the response of stationary dynamic loads, adopting a Falling Weight Deflectometer (FWD) or a Heavy Weight Deflectometer (HWD) device that simulates the stress generated by aircraft movements. By evaluating the PCN continuously in Airport Pavement Management System (APMS), cyclic determinations of the load-carrying capacity can be conducted to support the maintenance and rehabilitation (M&R) decision-makers. This review summarizes the methodology for determining the PCN and the tests conducted for evaluating the strength of airport pavement presented in the published literature. Further, the review highlights the benefits of determining PCNs by adopting the FWD or HWD field data with more precise results through mechanistic procedures.
Highlights
IntroductionThe airports are generally divided into two areas: airside and landside [1]
1.1 BackgroundThe airports are generally divided into two areas: airside and landside [1]
This research focuses on providing an overview of the nondestructive tests (FWD and Heavy Weight Deflectometer (HWD)), the back calculation methods, and the evaluation process of pavement remaining life and Pavement Classification Number (PCN) of pavement structures
Summary
The airports are generally divided into two areas: airside and landside [1]. Airside consists of all controlled access zones, such as runways, taxiways, aprons, aircraft service areas, and air control facilities. The airport’s landside includes public access areas such as the part of passenger terminal before security check, parking lots, and other public service facilities [2]. The landing and take-offs of aircraft are taken place by the runways that are usually connected with the apron by the taxiways. An apron provides a place for aircraft parking, refuelling, and the operations of loading and unloading with passengers, luggage, and cargo [3]. According to the recommendation from both the International Civil Aviation Organization (ICAO) and the Federal Aviation Administration (FAA), the runways should be arranged to
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