State and local government targets to get people out of cars and into more active transport would reduce heart disease and diabetes by tens of thousands of cases.
University of Queensland researchers have evaluated Brisbane’s active travel targets for 2026, which aim to achieve a split of 15% for walking, 5% for cycling and 14% for public transport.
School of Public Health PhD candidate Belen Zapata-Diomedi found there would be substantial health improvements if the targets were achieved.
“In Australia, 57% of adults do not meet national physical activity guidelines, but we found that investing in active travel is a feasible strategy for improving population health,” she said.
The study involved researchers from UQ, the University of Cambridge and QUT, and was conducted through the National Health and Medical Research Council Centre of Research Excellence in Healthy, Liveable and Equitable Communities.
Findings showed 82% of adults’ weekday travel was by private car, but reducing that figure to 66% would result in significant health benefits.
“In effect, Brisbanites would enjoy about 33,000 cumulative healthy life years that they would not have otherwise, by lowering risks of diseases related to physical inactivity.”
Healthy life years are estimated as years of life lived adjusted for disease-related quality of life.
“We found that increasing active travel would reduce cases of heart disease by 45,000 and type 2 diabetes by 90,000 over the lifetime of adults living in Brisbane in 2013,” she said.
Figures showed stroke (14,000 fewer cases), colon cancer (20,000) and breast cancer (13,000) would also be significantly reduced.
The study showed small negative impacts in the cases of increased exposure to air pollution and road injuries for people taking part in active travel, but these impacts were negated by the overall health benefits.
The study is published in PLOS ONE.
(Source: The University of Sydney, PLOS ONE)