From the document

Preamble

The purpose of this Guide is to develop and promote appropriate methods of road engineering that gives the best possible access to rural communities at minimal cost. This Guide has been prepared for use across PWD for the rural road network in Vanuatu. The Public Works Department Standard Technical Specification for Road and Bridge Works and Standard Drawings are complementary documents addressing how the work shall be undertaken. They have been prepared as separate documents. This Guide does not include urban roads. The Austroads Road Design Series is the basis for this Vanuatu Rural Roads Design Guide.

Vanuatu Rural Roads Design Guide | Incorporating Climate Resilient Design