Publications

Understanding the extent of changes in modal shift and their consequences in terms of road deaths and injuries is essential if we are to fully understand progress towards the targets of the National Road Safety Strategy, and the actions that may be…

Austroads project Classification of motorcycles as a distinct vehicle class aims to test whether motorcycles can be identified as a separate class of vehicle based on distance between axles. Motorcycles are currently classified as light vehicles…

Roadside hazards pose a major risk to road users who lose control of their vehicles and run off the road. From 2003 to 2007, an average of 558 fatal run-off-road crashes occurred annually in Australia and 135 in New Zealand. In addition to these,…

The objective of Austroads Project NS1203 (Estimating Road Network Congestion and Associated Costs) is to develop a procedure to calculate delay and associated congestion costs by making use of directly measurable traffic data. Network performance…

This report provides a literature review on the analyses of the flow breakdown process on a freeway. It begins with the basic freeway flow theory and automatic freeway control tools now in operation. The factors that contribute to flow breakdowns on…

This study reviews recent developments in road pricing for managing road travel demand and congestion, and identifies potential pricing mechanisms to facilitate freight modal choice based on marginal social costs including environmental and other…

This report provides an analysis of road pricing from a technical perspective to inform road authorities in Australia and New Zealand of some of the key issues involved. A key objective is to provide advice on what is required to identify and…

This project had its origins in an earlier project which showed that crash rates increased at extremes of horizontal and vertical geometry, and were lowest with narrow sealed shoulders. This paper reports an investigation based on the original…

This report examines whether a Traffic Frustration Index, which quantifies the events which contribute to driver frustration, would be a useful supplement to measures such as traffic speed and flow in identifying priorities for traffic management…