What is the major difference between primary and secondary egress in an evacuation plan?

• A. Primary egress is the usual exit path; secondary egress is a backup path that is used if the primary is blocked.
• B. Primary egress is the usual exit path; secondary egress is used as the main route during drills.
• C. Secondary egress is the usual exit path; primary egress is a backup when the secondary is blocked.
• D. Primary egress is the outside path; secondary egress is the window exit.

Answer: (A)

The major difference is that the primary egress is the usual exit path used under normal conditions, while the secondary egress is a backup route chosen to be used if the primary path becomes blocked or unsafe. This setup ensures there’s a safe, ready-to-use alternative if fire, smoke, or obstacles block the primary route. A good evacuation plan clearly marks both routes, keeps the secondary accessible, and trains occupants to switch to it when needed. Drills typically emphasize knowing the primary route for routine evacuation, with the secondary route tested as a contingency rather than replacing the primary. The idea isn’t to rely on a window exit or to make the secondary the main route during drills, since those would introduce unsafe or impractical paths.