Egress is the ability to leave a building to go to a large area or place in case of emergencies. Egress is defined in three different parts; exit access, exits, and exit discharge. Ching divided all of these into separate parts, giving them each their own definition. An exit access is the passageway leading to the exit, an exit is a corridor that leads to the outside of the building, and an exit discharge is the safe place that is at the end of the exit.
There was also a section on stairs in the chapter, where stairs are made up of treads and risers, which act as the “slope” of each step. The design of each staircase depends on the building code, a set of rules that the building places for constructed objects, whether it could be only a certain size, or a certain material. Stairways also have different designs, such as a spiral staircase, a half and a quarter stairwell, a straight run stairwell, winding stairwell, and a circular stairwell