What fire control feature is required for exit passageways in open mall buildings?

For exit passageways in open mall buildings, there is indeed a requirement for a minimum width. This specification is critical for ensuring safe egress during an emergency, allowing occupants to exit the building quickly and efficiently. The minimum width is designed to accommodate a certain number of occupants based on occupancy load calculations, which take into account factors such as the building's capacity and the potential for crowding during an emergency situation.

Having a defined minimum width helps prevent bottlenecks and ensures that all individuals can leave the premises in a timely manner, which is especially important in high-traffic environments like malls. Properly designed exit passageways that meet width requirements contribute significantly to life safety and compliance with fire codes and regulations.

Considering the context, while other options pertain to various safety features or requirements that can exist within buildings, they do not specifically address the critical aspect of ensuring an adequate and safe means of egress, which is why the minimum width requirement is essential and recognized as a fire control feature for exit passageways.