Publications

This report identifies trends in crash involvement amongst older road users (aged 75+).

The Austroads Network Operation Planning Framework (the Framework) was developed in 2009 however it is not widely used by road agencies. This research aimed to understand each road agency’s approach and consider how the Framework could be improved…

Congestion in Australian cities has continued to get worse with significant increases in population and new car registrations. About a million new motor vehicles per year were registered in Australia in the years 2005-2007 before the global…

The purpose of the study is to recommend an ongoing Austroads research programme that is focussed on the impacts of the increasing volume of light commercial vehicles (LCVs) and rigid trucks (Rigids) on the urban traffic network in terms of their…

The current practice of balancing traffic density or distributing traffic evenly in a road network is essentially subjective and is achieved manually through expert opinions. This report summarises these expert opinions and investigates whether…

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…

Older drivers are over represented in serious injury and fatal crash rates based on distance travelled. While their physical frailty is a contributing factor, ageing may also result in unacceptably diminished driving skills for a minority of older…

There is a widespread claim that older drivers are over-represented in crashes, particularly when crash figures are adjusted for distance travelled. There are numerous reasons suggested for this increased risk, including the increased frailty…

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…