ICAO 9157 PART 3 PDF

FOREWORD

This Aerodrome Design Manual, Part 3 — Pavements (Doc 9157) provides guidance on the design of pavements, including their characteristics, and on evaluating and reporting on their bearing strength. The material included herein is closely associated with the specifications contained in Annex 14 — Aerodromes, Volume I — Aerodrome Design and Operations. The purpose of this manual is to encourage the uniform application of those specifications and to provide information and guidance to States. This manual has been substantially rewritten, resulting in the following major evolutions from the second edition (1983):

a) up-to-date information on the ACR-PCR method for reporting pavement bearing strength (Chapter 1);

b) up-to-date material on regulating overload operations in accordance with the use of the ACR-PCR method (Chapter 2);

c) up-to-date material on the evaluation of pavements (Chapter 3) ;

d) up-to-date material on States’ practices for the design and evaluation of pavements provided by France, the United Kingdom and the United States (Chapter 4), subject to change when the ACR-PCR method becomes applicable (2024);

e) up-to-date material on runway surface texture and drainage characteristics (Chapter 5 moved to Appendix 6-B);

f) up-to-date guidance on protection of asphalt pavements (Chapter 6 moved to Appendix 6-C);

g) up-to-date material on structural design considerations for culverts and bridges (Chapter 7);

h) up-to-date material on the construction of pavement overlays during operations closures (Chapter 8 moved to Appendix 6-D);

i) new material on the bearing strength of natural ground areas (Chapter 9);

j) new landing gear designation system and updated main aircraft characteristics affecting pavement bearing strength (Appendix 1);

k) user information for the ICAO-ACR computer programme (Appendix 2);

l) details on the damage model for flexible ACR (Appendix 3);

m) removal of Appendix 4 (needed information provided in Chapter 4);

n) removal of Appendix 5, aircraft ACRs are available at any mass, centre of gravity (CG) and tire pressure by using ICAO-ACR computer programme; and

o) pavement operations and maintenance oriented guidance (new Appendix 6).

Chapter 4 of this manual is based on material on pavement design and evaluation submitted by States and is, therefore, believed to be current. Should a State, at any time, consider that the material included therein is out-of-date, the State should inform the Secretary General of this and, if possible, provide appropriate revised material.

Chapters 5, 6 and 8 of the second edition covering non-design subjects have been updated and moved to new Appendix 6, which comprises the updated operations and maintenance-oriented materials, augmented with guidance on mitigation of magnetic field distortions. Appendix 6 is provided to accommodate identified non-design materials until such time as they can be moved to more appropriate documents, such as the Airport Services Manual (Doc 9137) and the Procedures for Air Navigation Services — Aerodromes (PANS-Aerodromes, Doc 9981).

In order to maintain the consistency of possible references made to the second edition in other guidance and documents, all deleted chapters and appendices (e.g. deleted chapters that have been moved to the new Appendix 6) have been replaced by pages “intentionally left blank”.