Revolving doors must be placed at a safe distance from stairways and escalators to ensure safety in traffic flow and emergency evacuations, although exact distances are subject to local building codes.
The question of how far revolving doors must be from the top or bottom of stairways and escalators relates to safety and building codes which vary by location, but generally, there is a recommended distance to ensure that people have sufficient space to enter and exit without congestion, which could cause accidents.
The requirement addresses safety concerns involving traffic flow and emergency evacuations. Although the exact distance may not be specified in the provided references, the principle of maintaining a safe distance to prevent accidents and ensure smooth traffic flow applies.