You know the dangers of jogging and walking near traffic. Even when you have the right of way -- in a crosswalk, for instance -- you can get hit by a driver who does not yield and perhaps never sees you at all. This is especially a problem at dusk and dawn, when it's still fairly dark and you can blend into the shadows.
To protect yourself, you decide to wear high-visibility clothing when you know you'll be around cars. But should you wear orange or yellow? Which gives you the most protection and stands out to drivers?