Sustainable Road Tunnels

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 pollution.

Practices and methods that promote the sustainability of road tunnels are, therefore, necessary for alleviating the pressure they exert on scarce resources and the natural environment. However, sustainability is not about what should be done for the environment, it is something that must be done to preserve the quality of all life on the planet. It is particularly important for a road tunnel compared to a road at grade as a road tunnel has a substantially higher carbon footprint, both during its construction and the continuous operation of its systems throughout its operating life.

Every state and territory in Australia, as well as New Zealand, has committed to net zero emissions by 2050. In this context, responsible organisations have an obligation to reduce the sustainability impacts of delivering and operating road tunnels whose asset life is expected to extend beyond 2050.

In this webinar, Georgia O’Connor, Les Louis and Tony Peglas give an overview of the research undertaken to include updates for sustainability in the four parts of the Austroads Guide to Road Tunnels (AGRT).

The research presented in the session will provide owners, operators, designers and those constructing tunnels with guidance on how to achieve more sustainable outcomes at each stage of a road tunnel’s life cycle.