I've been driving along highways in Western Canada at night or dusk and I've been pretty surprised by the darkness on the roads. I'm not thinking of actual streetlights, as it doesn't really make sense in rural areas, but of cat's eyes, or road reflectors, that are common on many roads in the world.
These highways usually have little traffic, so the chances you can follow another car are low. Big turns are announced by signs but frequent turns with lower curvature are not really signaled and it appeared to me on many opportunities that these road reflectors were lacking and would make sense there.
I've been thinking about it and the main reason there might not be any could be the presence of wildlife at night, the main way to notice them is to see their eyes reflecting the car's lights (and animals wouldn't be noticed if there were road reflectors). It is quite popular in Canada that night driving is not recommended because you would encounter wildlife. This theory is only mine and very hypothetical.
Is there a reason why road reflectors are not used on roads in Western Canada?