As the days grow shorter, my annual request that dawn, twilight, and night road walkers wear highly-visible or reflective clothing, or a reflector vest as in photo. Cheap, lightweight. Wearing a light is good too. I suggest both.
I do not want to hit you, but I might get close if you walk on a roadside dressed in dark clothing. That would be a bad thing for you and me. Please do not make yourself invisible. I have come too close to night walkers.