So many things are conveyed by people flashing the car’s headlights at other motorists and pedestrians, how do we know what the intended communication means? If only everyone knew Morse code. My online research suggests there is not yet a set definition for specific flash patterns. So why not start a language and see if it catches on?
1 Flash – One or both of your headlights are out (not on or may not be working).
2 Flashes – I’m planning to pass you on the road.
3 Flashes – Upcoming danger on the road or police monitoring.
What else am I missing?