Stephen

And this is why you NEED a very high power and WIDE angle daytime-use headlight. Note how the crossing vehicle was coming out of a brightly lit area into the shade. Fortunately it looks like the rider wasn't seriously injured.

He was probably focused on the truck, crossing from the left, so the car coming from the right at an angle was a real surprise. The rider got on the brakes hard and started to turn, but not quite enough time.