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Development of Machine-Learning Decision-Support Tools for Pavement Asset Management
This report explores the use of Artificial Intelligence (AI) and Machine-Learning (ML) in pavement asset management and details a methodology for developing new use-cases. While there are some existing uses of AI and ML technology in pavement asset…
Prolonging the Life of Road Assets Under Increasing Demand: A Framework and Tools for Informing the Development and Justification of Asset Preservation and Renewal
This report provides an evaluation framework, practices and supporting tools for evaluating road preservation and renewal treatment options for predominantly sprayed seal flexible pavements. It includes a compilation of case studies based on a…
Strategy for an Improved Mechanistic-empirical Flexible Pavement Treatment Design
This report details research undertaken to improve the mechanistic-empirical procedure for pavement rehabilitation and strengthening treatment design included in Austroads Guide to Pavement Technology Part 5: Pavement Evaluation and Treatment Design.…
Social Costs of Road Crashes in Australia: The Case for Willingness-to-pay Values for Road Safety
This report provides a broad indication of the methodology, project components, expertise available and indicative costs required to produce a robust national willingness to pay (WTP) estimate of the social cost of Australian road crashes.
Valuation of Travel Time Reliability: A Review of Current Practice
This report introduces key methodologies and the associated challenges with regards to defining and measuring travel time reliability, in particular, for improving the valuation of travel time in project appraisal by Australian jurisdictions.
Updating Austroads RUE Unit Values and Related Methodologies
Austroads updates of unit values and cost estimation algorithms used as inputs for urban and non-urban road investment evaluation models have become the industry standard in Australia. Updates provide a comprehensive and detailed coverage in both…
Improved Distress Viscosity Model for Reseal Intervention
An existing model predicted binder life by combining a binder hardening (increase in viscosity) model and a distress viscosity model. Inputs for the two models were site temperature parameters, binder durability (resistance to hardening) and seal…
Development of an Aggregate Size Term for a Reseal Intervention Model
An existing model predicted maximum seal life by combining a binder hardening (increase in viscosity) model and a distress viscosity model. Inputs for the two models were site temperature parameters and binder durability (resistance to hardening).…
Review and Enhancement of Vehicle Operating Cost Models - Assessment of Existing Models
In response to a concern that road evaluation models utilised by Australian road authorities were yielding inconsistent and inaccurate estimates of road user benefits, Austroads surveyed and assessed evaluation models currently in use. Information…