Brightness is key for 3M roadshow

MILTON, Ont. – It’s raining, it’s dark, and you’re squinting to see the lines on the road and the signs ahead of you. We’ve all been there, but if you’ve ever cursed your inability to see road markings in the dark or bad weather, you don’t necessarily need to blame advancing age or declining sight, say engineers at 3M. Instead, you should blame the sign technology.