This data was sourced from the Bureau of Infrastructure, Transport and Regional Economics and shows baseline modal share projections for total urban travel, 1945 - 2030. From: Traffic and congestion cost trends for Australian capital cities, information sheet 74.
Data used to profuece Figure BLT5 in Built environment, SoE 2016. See; https://soe.environment.gov.au/theme/built-environment/topic/2016/increased-traffic#built-environment-figure-BLT5
For more information see http://bitre.gov.au/publications/2015/is_074.aspx