I've just been reading this report on the BBC website. I know that I certainly played out as a child, but we lived in a long cul de sac so you could see cars coming and all cars were parked on drives rather than in the road.
My DS isn't old enough to play out yet but I'm aware I generally don't see children playing out in the street. You hear them from their gardens but they don't ride bikes up the roads etc.
Do you let your children play out? If so, what sort of road do you live in and how old were they when you let them out? What restrictions, if any do you put in place e.g. not being out of sight of the house?
TIA