For RW files, that's not completely true. There is a way to determine which side the doors open on. While the @station command most likely doesn't allow this, the @STA command does. It needs to be coded like this:
@sta(Patapsco Street,,,0, -1,0,0,,25,65)
Where the -1 is to have the doors open on the left side only. 1 for the right, or 0 for both.