So, stupid question
and I think I know the answer but why do they make everyone put flags on their rigs?
There are areas on the dunes that are non-directional.
The hope is when going up hills in these areas if there is traffic going towards each other the flag can be seen in time to avoid a crash.
It's helped me a couple times but mostly i try to take it easy in these situations.
Crashes do happen out there though.