scope:

This revised and updated version of the Aerodrome Design Manual, Part 3, includes guidance on the design of pavements including their characteristics and on evaluation and reporting of their bearing strength . The material included herein is closely associated with the specifications contained in Annex 14 - Aerodromes. The main purpose of this Manual is to encourage the uniform application of those specifications and to provide information and guidance to States . The significant additions/ revisions to the Manual as a result of this revision are:

a) background information on the ACN-PCN method for reporting pavement bearing strength (Chapter 1);

b) material on regulating overload operations (Chapter 2);

c) updated material on evaluatfon of pavements (Chapter 3) and on runway surface texture and drainage characteristics(Chapter 5 ) ;

d) updated material on the design-and evaluation of pavements provided by Canada, France, the United Kingdom and the United States (Chapter 4);

e) guidance on protection of asphalt pavements (Chapter 6 ) ; and

f ) material on structural design considerations for culverts and bridges (Chapter 7).

Chapter 4 of this Manual is based on updated 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 Should a State, at any time, consider that the material included therein is out of date, it should inform the Secretary General of this and, if possible , provide appropriate revised material.