A perceived deficiency of the station is that there is only one island platform on the four track section of the Illawarra line, meaning that peak hour services using the 'Illawarra local' tracks have no means to stop at Wolli Creek. Also, trains from the East Hills line travelling on to Tempe and Sydenham have no platforms at which to stop at Wolli Creek. This deficiency has been identified by Railcorp, and there are long term plans to construct additional platforms at Wolli Creek to enable better interchange of services.
By way of reference, the wikipedia page provides a dead link to a TIDC document which I cannot find on the TIDC website.
Can anyone provide any more details? Does anyone know if there are any plans to upgrade Wolli Creek station to enable trains on all lines that pass through to stop there?