The ped-green/road-amber flashing phase is for people already crossing to finish, it is conceivable that someone may be slow enough that they haven't cleared the crossing before the lights go solid. The last bit of that paragraph is just to remind us that a green light does not give you permission to run folk over or brush past intimidatingly close while shouting "waaaaaankaaaaaa". You'd think it's common sense but there really is no such thing.
The ped-green/road-amber flashing phase is for people already crossing to finish, it is conceivable that someone may be slow enough that they haven't cleared the crossing before the lights go solid. The last bit of that paragraph is just to remind us that a green light does not give you permission to run folk over or brush past intimidatingly close while shouting "waaaaaankaaaaaa". You'd think it's common sense but there really is no such thing.