A report from Australia's New South Wales state on Thursday indicated a number of Sydney train stations will be at risk of overcrowding to the point of being dangerous.
Beca consulting firm conducted the study in 2015, using timetable projections for 2018-2024.
The report showed the infrastructure at Epping, Strathfield and North Sydney stations would not be adequate in future and could create an atmosphere for commuters that was "conducive to panic" with various bottlenecks.
Transport and logistics management expert Geoffrey Clifton at the University of Sydney told Xinhua news agency that the issue will likely "get worse as more people move into the suburbs".
Adding to that, once the city's new rail line, the Sydney Metro, is completed, "there will be a lot more people transferring to the existing train services and that's what will trigger those high levels of overcrowding," Clifton said.
There is a mixture of things that need to be done in order to alleviate the problem, Clifton said.
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