Publications

This report, originally published in November 2021, outlines the findings of a project to develop clearer and more consistent tunnel signage to reduce the impact of over-dimensioned and dangerous goods vehicles on both infrastructure and Workplace…

Road tunnels are an important element of the transport infrastructure, requiring significant resources and energy to construct, operate and maintain. Consequently, they are potentially a major source of greenhouse gas emissions and environmental…

This report documents a project undertaken to investigate the issues associated with managing the planning, construction, operation and maintenance of road tunnels in a sustainable manner. The results of the investigation informed an update to all…

Road tunnels are major pieces of infrastructure across the road network, and the number of tunnels is expected to increase in the coming years. Although they are relatively safe, a significant number of crashes occur on the approaches to and within…

This report evaluates selected low-cost perceptual countermeasure (PCM) treatments in tunnel environments. PCM treatments are used to reduce crash risk by improving driver speed behaviour, alertness and lane discipline within tunnels. Two key…

This webinar, presented on 9 November 2018, provides an overview of an Austroads study to develop suggested good practice for a consistent, efficient and safe approach to emergency egress signage within Australasian road tunnels.

This report provides guidance on consistent, efficient and safe design of emergency egress signage and operations in road tunnels. While there are Australian Standards relating to emergency egress signage, these were not originally intended for use…

Guide to Road Tunnels Part 3 provides guidance on the management of the operation and maintenance aspects of road tunnels, including the factors to be considered in setting appropriate performance standards. Guidance is provided on stakeholder…

Guide to Road Tunnels Part 1 outlines the structure of the Guide to Road Tunnels, while also introducing road tunnel planning. Part 1 describes key issues and considerations related to the implementation process, road tunnels in the context of a…

This report identifies factors that contribute to the occurrence and severity of crashes adjacent to and within tunnels and suggests remedial treatments that will reduce the incidence and severity of these crashes.