Publications

Accessibility is broadly defined as the variety of opportunities provided to people through efficient arrangement of land use and various modes of transport. It measures the ease with which people are able to find and reach the best suited…

This paper considers how several recent pedestrian-oriented bridges, all on Auckland’s Western Ring Route, provide new connections or re-establish severed connections between communities. As the architect involved in these bridges, I will also…

A wide range of test methods has been used to measure the resistance of concrete to chloride penetration. Each method is purported to measure the property of concrete central to the chloride transport mechanism into concrete. They include water…

Priorities in bridge engineering are changing. The imperative has shifted subtly from minimum cost to “more for less”, requiring a more holistic approach to sustainable delivery which offers best value to the economy and society as a whole over the…

The Roads and Traffic Authority of NSW (RTA) has had various concerns regarding the quality of the “cover concrete” produced by contractors and suppliers using certain types of bar chairs in the manufacture of concrete products for RTA bridges.…

The Austroads asphalt mix design method was developed in 1997 and has had a number of revisions over the intervening years as test methods evolve and experience is gained. However, implementation of the method has been variable across the various…

This report summarises some of the literature dealing with the compaction of dense graded asphalt. Compaction of asphalt is usually expressed in terms of air void content. This is necessary as the aggregate which constitutes about 95% of the mass of…

The development of an Austroads asphalt mix design procedure led to adaptation and adoption of a number of overseas test methods. These test methods were then compiled into what has become a suite of Austroads test methods. The Austroads test…

This report presents a review of the available structural design methods for foamed bitumen pavements, as a first step in the development of thickness design procedures. Six design procedures were found in the literature, most of them based on well…

This report details a laboratory investigation of the effects of different multiple-axle load groups on the fatigue performance of cement treated materials. In the Austroads flexible pavement design process the performance of cement treated…