Hard on the eyes': Defective streetlights on some Calgary roadways have drivers blue

Scores of streetlights along some of Calgary

Calgary 311

Blue streetlights in Spokane are manufacturer's defect; city investigating

Why dozens of street lights on 2 major Calgary roads are turning blue (or purple)

Hard on the eyes': Defective streetlights on some Calgary roadways have drivers blue

Streetlights Are Mysteriously Turning Purple. Here's Why

Nationwide Failure of AEL Streetlights - Night Sky Santa Fe

Lights out: fallout from worldwide shortage impacting streetlight repair in Calgary - Calgary

Why dozens of street lights on 2 major Calgary roads are turning blue (or purple)

Light Pollution Abatement - Light and The Eye

A look back at Calgary's first traffic lights