A common path of egress travel is that portion of the exit access travel distance measured from the most remote point within a story to that point where the occupants have separate access to __________ exits or exit access doorways.

The correct answer is two, as a common path of egress travel is defined in building codes and safety standards to ensure that occupants have sufficient access to separate exits in the event of an emergency.

The critical concept here is that having two distinct exits or exit access doorways allows for redundancy in egress routes. If one exit becomes inaccessible due to smoke, fire, or other hazards, occupants can safely use the alternative exit to evacuate the building. This redundancy is vital to enhancing the overall safety and effectiveness of a building’s evacuation strategy.

By requiring that a common path of egress travel is measured up to a distance where access to at least two exits is provided, building codes aim to minimize the likelihood of occupants becoming trapped and ensure that evacuation routes remain accessible under various emergency situations. The requirement for two exits is a fundamental principle in life safety and fire prevention design, ensuring that even in worst-case scenarios, occupants have multiple avenues for escape.