Best practice in urban transport decarbonisation: a case study of three initiatives in Brisbane

Abstract

ABSTRACT Avoiding the worst impacts of climate change requires a transition to net-zero greenhouse gas emissions by mid-century, if not before. Urban transport systems are a significant contributor to emissions, so effective mitigation strategies for this sector are needed. This paper starts by outlining a best practice framework for transport decarbonisation based upon a review of the international research literature that entails: shifting passengers to net-zero or low-emission modes; investing in more energy-efficient technology options; and managing the demand for transport through a combination of land-use planning and socioeconomic policies. This best practice framework is then applied to a case study conducted in Brisbane (Australia) to see how the gap between the concepts developed in the research literature and the practice of making a change may be bridged. A policy analysis of three key transport initiatives in the city was undertaken to determine how they measure up against the best practice framework. On the positive side, Brisbane has the advantage of providing a reasonably reliable public transport system, expanding its bicycle/walking paths and engaging local communities in the decision-making and implementation. However, Brisbane faces a high degree of urban sprawl and car dependency, exacerbating its ecological footprint. Key Points: Urban transport is not sustainable and needs to be decarbonised. This requires a framework of practical solutions to assist transport planners and policymakers in moving towards a more sustainable, low-emission future. The best practice framework for transport decarbonisation entails shifting commuters to low-emission transport options, investing in more energy-efficient vehicles, and managing the demand for transport. Brisbane has geographically extensive and reasonably reliable public transport systems and community engagement processes, but the city is challenged by urban sprawl and car dependency.