Publications

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…

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 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…