3M got into the road safety business in the 1930s by inventing a reflective sheeting called Scotchlite. Tiny glass beads help retroreflect light back to drivers to make signs visible from farther ...

MoDOT engineers said their road signs have reflective paint. When you shine your headlights, they should be easier to see. “The signs outside of town are minimal,” said Engevik.

The Uttar Pradesh government introduces retro-reflective road signage and additional safety measures to reduce winter road accidents and fatalities, particularly during foggy conditions.

The signs are made of aluminum and reflective vinyl. Curt Jemison, who has worked in sign production for Salt Lake County for 25 years, says there’s more than meets the eye when making one.

All road users are being advised to "be bright and be seen" as the evenings draw in. BBC Homepage. ... Kids given reflective keyrings in safety campaign. Image source, Getty Images.