But mostly it doesn't.
Melbourne doesn't have runway specific SIDs for a good reason-ATC can change the runway at a moments notice without changing the clearance. For the pilots it is not a simple process to change runways and as someone stated at 5:30 it is a PITA. I also note that on ACD some controllers will advise which runway you can expect and yet others don't. How about making it SOP to tell the crew what runway they can expect for departure Traditionally runway direction is dictated by the wind direction, not by the clock.