When entering a building, what are your first thoughts? Few people pay attention to an emergency exit route or how to get out fast. In case of fire or other emergency, getting out as soon as possible is all that matters.
Door environment safety is often associated with locking the doors and with authorised entry. Besides that, personal safety also includes getting out, and therefore each building must have an exit that is safe in all situations.
Exits must be unimpeded, passable and safe, even when used by large numbers and range of people from kids to elderly. In an emergency, the doors must be opened easily without a key, and exit routes must be clearly marked.