If you're a driver (or even a passenger), you've seen them: small color-coded plastic markers in the center, or sometimes at the edge, of the road. They have various names; in the U.K., you'll ...

Wearing a "high-visibility" jacket at night might confuse the sensors used by automated driver assist systems.

It's one you've heard repeatedly as you pass over the arrows painted in the traffic lanes and lined with reflectors. The reflectors make the arrows easier to see at night. If you're traveling in ...