第3部分提供了路面设计指南，包括其承载强度的评估和报告，以及有关超载操作的详细信息。还提供了报告路面承载强度的ACN/PCN方法的背景信息。一些成员国的做法也包括在内。

Part 3 provides guidance on the design of pavements including their evaluation and reporting of their bearing strength as well as detailed information concerning overload operations. Background information on the ACN/PCN method of reporting pavement bearing strength is also provided. Practices of some Member States have also been included.