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Analytical Study of Performance Models for Unbound Granular Pavements

This report presents an analytical and parametric study to assess the relevance of rutting performance models for unbound granular pavements.

The rutting performance relationship used in the Austroads Guide to Pavement Technology Part 2 – Pavement…

Review of Definition of Modified Granular Materials and Bound Materials

This report investigates the origins of the current Unconfined Compressive Strength (UCS) criteria that differentiates modified granular materials from bound materials. Based on the review, a number of changes to the UCS design criteria are…

Improved Rut Resistance Characterisation of Granular Bases - Manufacture and Commissioning of a Wheel-tracking Device

To assess permanent deformation of granular materials repeated triaxial tests are currently used. A previous research project highlighted interest in using a wheel-tracking test to obtain a better agreement with field performance.

A new wheel-tracker…

Development of a Wheel Tracking Test for Rut Resistance Characterisation on Unbound Granular Materials

To assess permanent deformation of granular materials, repeated triaxial tests are currently used in Australia. A previous research project highlighted interest in using a wheel-tracking test to obtain a better agreement with field performance. A…

Safe System Demonstration Project Involving an Indigenous Community: Implementation
This document reports on the implementation phase of the Indigenous Safe System Demonstration Project in Bidyadanga, Western Australia. In this phase a funding strategy was developed for the implementation plan which was prepared in the second half…
The Influence of Multiple Axle Loads on the Performance of an Unbound Granular Pavement under Accelerated Loading: Interim Data Report

This report details the data collected during the performance assessment of a typical unbound granular pavement under accelerated loading, using the Accelerated Loading Facility (ALF) with single, tandem and triaxle axle group loads.

As part of the…

The Effects of Heavy Vehicle Single, Tandem and Triaxle Groupings on Sprayed Seal Wear - Stage 1

The majority of sprayed seal design methods around the world are based on the work of Hanson, published in 1935. However, there are growing weaknesses in current sprayed seal design models. Traffic loads have increased, particularly in both the…

The Influence of Multiple Axle Loads on the Performance of an Unbound Granular Pavement under Accelerated Loading: Construction of Test Pavements

Recognising the importance to pavement designers, asset managers and policy makers of an improved understanding of the relationship between different multiple axle group loads (single, tandem, triaxles, etc.) and road pavement performance, Austroads…

Innovative Road Safety Measures to Address Fatigue: Review of Research and Results from a Treatment Trial.
Austroads study (RS.SS.N.018) identified fatigue as a major contributing factor to rural and remote crashes, and recommended that research be undertaken to address this issue. As a result ST1347 was initiated to identify innovative treatments that…
Cost Effective Structural Treatments for Rural Highways: Cemented Materials

This report describes the preparation, testing and results from project TT1358: Cost-effective structural treatments for rural highways: Cemented Materials. Ten granular materials, with a variety of different characteristics such as normal to high…