Which of the following is NOT considered a part of the means of egress?

In the context of fire safety and building codes, the means of egress refers to the continuous and unobstructed path of travel to a public way from any point in a building. This includes elements that allow individuals to safely exit a building during an emergency.

Exits are specifically designated routes that lead people out of the building, including doorways and stairways. Stairs provide necessary vertical movement within the means of egress, allowing occupants to move between levels safely. Corridors serve as horizontal pathways that direct individuals to exits.

Escalators, while useful for moving people between floors, are not reliable in emergency situations. They may not operate during a fire or other emergency, and their design does not inherently provide a safe egress path. Consequently, escalators are not considered a part of the means of egress as they cannot ensure the safety and accessibility that other elements like exits, stairs, and corridors provide.