Which of the following is a factor for level egress components width per person?

The correct factor for calculating the width of egress components per person is based on established fire safety codes and regulations, which define the necessary width to ensure safe and efficient evacuation during emergencies. The standard measure of 0.2 inches per person reflects the minimum width required to effectively accommodate individuals in a timely manner during an evacuation.

This value takes into account various aspects, including the average shoulder width of a person and the need for sufficient space to move safely without obstruction or delay. Adequate egress width is critical in preventing bottlenecks and ensuring that all occupants can exit the building promptly, especially in emergency situations.

The other values mentioned do not align with current safety codes, which are grounded in extensive research and practical experience in fire safety and evacuation planning. Consequently, they do not provide a sufficient width for egress components, thereby not complying with the standards necessary for maintaining safety in potentially hazardous situations.