Two years to replace the track intersection in Toronto. Weekend to replace the track intersection in Zurich. Because public transit is low priority in Ontario.
The boys from Australia say the same thing and it been pointed out many times.
Then, it is out of TTC hands since the City is calling the shots. They call the tenders and stated what has to be done with input from TTC and awarded the contracts.
The first major issue is Toronto Hydro. Toronto Hydro has been late on almost every TTC projects from a few week to 6 months and very late on this one. They were late on the Gardiner Simcoe off ramp by a few months.
You have the funding issue where things get push down the road and this is happen here now.
Doing work in the winter is a lot slower than the summer and require extra time for the concrete to curie considering how cold it been this winter..
How TTC does things is different from most places when it comes to replacing track to the point are they doing it more right then wrong as to how they do it??
TTC said rail should last 20-25 year other than curves before replacement now the tanks are gone. The ties should last 50-75 years before replacing them. The whole base is supposed to last 75-100 year, but who to know since we will be gone before it done.
Then there is the water and storm water system that is supposed to be replace.
To do it right, you close the whole road to traffic 100% other than buses. Expect one big bitching complaint from the car folks. Cars are king and they need their right of use of the roads before transit or pedestrians.
COVID has most thing delays these day due to lack of manpower and material.