What I don't understand is why they don't know double track Walkley since they are going to be constructing a station there anyway as part of phase 2?
If it eventually needs to be done to improve frequency, why not do it now?
This just ensures that frequency remains low, and that the line will need to close AGAIN in the future when they DO decide to do it and if it's $15M today, we all know its not going to get any cheaper in the future