Highway 401 Widening - Highway 8 to Townline Road

[danbrotherston]

That does appear to be cement. It makes sense to do it on cement roads, but over time, cement and asphalt tend towards the same colour.

Florida (and other non-snowy) places usually use reflectors and bumps. These work very well in practice I find, buuuuuuuut are vastly more expensive (not impossible) in area's with snowplows. If simply glued on the surface as they do in warm places, the snowplow will peal them off, so they must be sunk into the road. Also, they tend to get clogged with snow in the winter. As a result, they're only used in select places here, often when fog is a common condition.