I once lived in a city in USA where the road was positioned in such a way that at certain times of day basically nobody on the road could see properly. They called them "sun delays" and they sound like BS until you are actually in that position: On a clear day the sun would be directly in your damn eyes all the time and there is nothing you can do to alleviate this. If you put on dark enough sunglasses your vision was farked as well and if you position your head so that the visor was blocking the sun you now cannot see the road properly. There were a lot of accidents on that road constantly.