Don't they have to completely relocate and replace utilities along the corridor like they did in Waterloo?If it's like the Eglinton line contracts, then it likely won't, unless something very major happens. The opening date would be fixed in stone, with massive penalties. And there shouldn't be many construction surprises - most of this is just surface LRT. The biggest dig is adacent to the new Finch West station, so there shouldn't be any surprises in what they encounter there. And there's only one other hole in the ground really - at Humber College. Presumably they'll start digging at those locations early.