ICAO 9157 - Part 3:1983 PDF Download

The Aerodrome Design Manual - Part 3: Pavements, also known as ICAO 9157 - Part 3:1983 standard, is a comprehensive guideline that focuses on the design and evaluation of pavements in aerodromes. The manual provides detailed information on various aspects of pavement design, including the determination and reporting of pavement bearing strength.

One of the key features of this standard is the introduction of the ACN/PCN method, which is used to evaluate and report the pavement bearing strength. This method takes into account the anticipated aircraft types and their corresponding aircraft classification number (ACN) and compares it with the pavement classification number (PCN) of the runway or taxiway. This allows for a more accurate assessment of the pavement's ability to withstand aircraft loads and determines its suitability for different types of aircraft operations.

Furthermore, the manual includes guidance on overload operations, which refer to situations where an aircraft exceeds the specified pavement load limit. It addresses the potential impacts of such operations on the pavement and provides techniques to mitigate the resulting damage.

Additionally, the manual includes information on the practices followed by some Member States, which provides valuable insights into the real-world application of pavement design and evaluation.