There is only one that I cross regularly and I always slow to a virtual halt and look both ways as well Wooly, its a minor road and the left turn just before it is now a stop so I am not travelling fast but even in the other direction I stop, not defying anyone but its human nature to sneak a peak unless you are a smartphone user crossing the road.
There are a few PàD's locally that because they are an acute angle I have to take my priorité blind whilst muttering Inshallah.
I havn't looked at the détails of the crossing but what often happens is that in traffic a long vehicle like a bus will cross before he has enough length ahead for a safe exit, the traffic stops and a tragedy occurs.
Iknow if I were in charge of Young passengers I would look both ways and ahead to make sure the exit was clear.
Another possibility is the old "un train peut en cacher un autre", the "en" always seems malplaced in that phrase.