I think the optimal tenperature for infrastructure would be something in the 20C’s.
Much higher and tar starts to melt.
When it goes to -20 and below, you need to invest in sanding and snow plowing trucks to make the roads less slippery.
But when it gets to around 0, I suspect it’s actually the worst. Now you can use salt instead of sand & gravel. But you get many freeze-thaw cycles that wreck concrete and tarmac as liquid water seeps into places, then freeze & expand, etc. Toronto has this problem whereas Calgary does not.
A little bit of warming might be bad for much of Canada’s infra!
Much higher and tar starts to melt.
When it goes to -20 and below, you need to invest in sanding and snow plowing trucks to make the roads less slippery.
But when it gets to around 0, I suspect it’s actually the worst. Now you can use salt instead of sand & gravel. But you get many freeze-thaw cycles that wreck concrete and tarmac as liquid water seeps into places, then freeze & expand, etc. Toronto has this problem whereas Calgary does not.
A little bit of warming might be bad for much of Canada’s infra!