Travel distance refers to the maximum path occupants must travel to reach an exit. What does it influence?

• A. The height of exit signs
• B. The number of exits required per floor
• C. The maximum path length occupants must travel to reach an exit; it influences exit placement and width to ensure safe evacuation
• D. The time to evacuate the building after alarm

Answer: (C)

Travel distance sets how far people may have to go to reach an exit, so the design focus is on locating exits and sizing the routes to them. When you know the maximum allowed travel distance, you place exits at points where every occupant can reach an exit within that limit, which often means more frequent or strategically placed exits and properly configured corridors and stairs. Because people are moving toward those exits, the width of the paths they use must be adequate to handle the anticipated flow and prevent bottlenecks. If the travel distance is longer, wider egress routes or additional exits are typically needed to maintain a safe, timely evacuation.

Height of exit signs is about visibility along the route and does not directly define how far people must travel. The number of exits per floor is related to meeting the travel-distance requirements, but the core effect described here is the impact on where exits are placed and how wide the egress paths must be to ensure safe evacuation. Time to evacuate after an alarm involves many factors beyond travel distance, such as detection, notification, and occupant behavior.