What's not covered in the diagrams you've provided are construction standards (for fire ratings) and also whether scissor stairs [0] satisfy the requirements fo

What's not covered in the diagrams you've provided are construction standards (for fire ratings) and also whether scissor stairs [0] satisfy the requirements for two staircases. These vary widely across the countries noted [0] https://pbs.twimg.com/media/FnC9ge6WQAAFd7p?format=png&name=small https://pbs.twimg.com/media/FnC9ge6WQAAFd7p?format=png&name=...