How's Leader St Coping?

I watched tonight's news with interest. When the newsreader described the bottle neck at Oaklands Rd I thought the story would be on Leader St. The intersection has exactly the same number of trains from Seaford as Goodwood, the story showed the cars idling as the boom gates went down every 41/2 minutes. The difference is Leader St also has the Belair Line and the freight line. So, is the traffic diverting to Victoria St or Mills St or staying on South Rd or Goodwood Rd?