When using a crosswalk on foot, I always make sure a car is stopped in it’s lane before proceeding to the next lane. Full eye contact. It doesn’t matter that I’m in a crosswalk. I might have been in the right, but that won’t matter if I die.

It’s the same with cycling. Cameras will only help after the fact, and maybe a bit if it’s very visible. But the best thing you can do is not trust any car, and avoid travelling where you have to trust cars.