![]() ![]() The lowest in the study had had 11 links. The study measured the “degree centrality” of each postal area, finding highly affected top-5 postal areas had 61.2 links on average. Despite those measures, New South Wales, the state where Sydney is located, is reporting. As many had neighbouring suburbs or postal areas within the designated radius, people were free to move in and out across infected suburbs, bringing the virus to newer suburbs. On Wednesday, Sydney extended a lockdown by a month until Aug. The authors say stakeholders and policymakers could consider their findings in developing strategies to prevent the spread and reduce the severity of future pandemics.ĭuring Sydney’s second delta wave, harsher lockdowns were imposed on south-west and western Sydney LGAs. “As pandemic policy is determined at a state or local health district level, we wanted to provide a more granular approach – to fill the gap – showing how the movements of people progress across suburbs through local roads and their chances of introducing the virus to adjacent suburbs”. This study puts into contention the efficacy of strict LGA lockdowns in areas that are highly connected by road, says Dr Shahadat Uddin. “While many studies have explored the relation between mobility and COVID-19 propagation, they primarily focused on larger geographic areas, such as whole cities, states and countries,” Dr Uddin, an expert in complex networks and health analytics in the School of Project Management, said. “It was not the most urbanised or densely populated parts of Sydney which were most severely affected by the disease – rather it was the suburbs that were connected to many other suburbs by road,” lead researcher Shahadat Uddin says. ![]() These roads put people in easy reach of each other, thereby increasing their vulnerability to being infected sooner. Parramatta is quiet in August 2021 as it goes through the delta lockdown Wolter Peetersīut the lockdowns did allow movement of 10 kilometres initially, later shortened to five kilometres, even if it meant breaching a council boundary, and they did not consider the road networks that created myriad connections between neighbouring suburbs of other LGAs that fell within the radius. Only essential workers could leave the areas. Locking down local government areas during the pandemic may have been ineffective in stopping the spread of COVID-19, a new study from Sydney University has found.īetween July and September 2021, residents of so-called LGAs of concern suffered under much tougher rules than other Sydneysiders. ![]()
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