Publications

Showing 41 - 50 of 53 Publications
Development of HDM-4 Road Deterioration (RD) Model Calibrations for Sealed Granular and Asphalt Roads

Improved RD models for sealed granular and asphalt pavements are needed. Pavement performance history data from state road authorities and New Zealand (SRAs) were used for calibrating RD models. The calibration and refinement of RD models is…

Estimating Uncertainty in Measurements Made on Materials
This document provides some guidelines on the estimation of measurement uncertainty and sampling variation. The procedures are demonstrated through a worked example based on a soil moisture content test. Estimation of the standard deviation for each…
Road Surface Characteristics and Crash Occurrence: A Literature Review

The starting point for this review was the recently-published Austroads Guidelines for the Management of Road Surface Skid Resistance. Skid resistance, which depends on both microtexture and macrotexture, is currently the road surface characteristic…

Specification for Pavement Deflection Measurement with a Falling Weight Deflectometer (FWD)
This specification provides minimum equipment, calibration, validation and survey method requirements for the conduct of network level pavement deflection testing using a Falling Weight Deflectometer (FWD).
Audit of Rest Areas Against National Guidelines
At its February 2006 meeting, Council of Australian Governments requested that a national audit of heavy vehicle Rest Areas be carried out against a nationally agreed standards (National Guidelines for Provision of Rest Area Facilities). The audited…
Optimum Use of Granular Bases: Construction of Test Pavements

Over the last decade a considerable amount of research effort has been focussed on the development of a repeated load triaxial (RLT) test procedure to assist practitioners in the use of natural and marginal unbound base/subbase materials in road…

A Review of Austroads Gyratory Compaction Research
Work associated with the gyratory compaction procedure, which is part of the performance based Austroads asphalt mix design procedure, was reviewed. Studies included determination of the design cycles for different traffic levels, the effect of…
Comparison of the US and Australian Long Term Pavement Performance (LTPP) Data on Asphalt Pavements
This report compares the deterioration of two pavement groups in the US-LTPP program (GPS1 and GPS2) with that of the Australian LTPP GPS1 and GPS2 pavement groups. For the non-freezing group of the GPS1 pavements, the US sections had similar…
Ball Penetration Test Stage 2: Field Validation
Field testing was carried out to validate the K factors of the ball penetration test and found generally comparable trends to the previously determined laboratory data. Consequently, a replacement K factor (0.06) was recommended for fatty roads and…
Guide to Road Safety Part 3: Speed Limits and Speed Management
The purpose of this guide is to provide an overview of speed limits and their application as a speed management tool. The use of appropriate speed limits form an integral part of a safe road system. They are a speed management tool used to improve…