Prolonged street light outages in Winnipeg are prompting concerns about road and sidewalk safety, with some blocks being in the dark for days or weeks at a time when the sun is going down earlier.

A street light off on Kensington Road in Calgary. The city says there are about 100,000 street lights in Calgary. (Lily Dupuis/CBC) ...

In Vancouver, more than 100 blue or purple street lights have been reported to the city — the result of a manufacturing defect involving a coating on the light.