Publications

This report reviews current practices and research evidence on the co-location of three types of signs: direction signs (DS), variable message signs (VMS) and variable speed limits/lane control signs (VSL/LCS). An advanced driving simulator study…

This report documents research to determine if the size of electronic regulatory speed signs (ERSS), such as variable speed limit signs, could be reduced without adversely impacting efficiency of driving or safety.

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…

This report provides a traffic or logical architecture for the new controller. Austroads recognised the need to develop a new generation of traffic signal controllers, making use of modular, scalable design with an open architecture. Two key…

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…

This report includes the examination and recommendation of a five-layer framework to implement controller functions. The key benefit of this concept is the clear demarcation of functions. The proposed concept allows functions to be built logically…

Computer processing power and memory availability have significantly advanced in the last few decades. New concepts in controller architecture and new vehicle detection technologies are now also available. Project NS1377 (Traffic Signal Controllers…