Which statement best describes horizontal exits?

Which statement best describes horizontal exits?

• A. Horizontal exits are exits that go upward via ramps.
• B. Horizontal exits bypass smoke control.
• C. Horizontal exits are only for exterior courtyards.
• D. Horizontal exits provide an alternate means of egress to another building or portion of a building on the same level; they must be properly protected to ensure safe egress.

Answer: (D)

Horizontal exits are a protected, same-floor path that lets occupants move from one building or portion of a building to another on the same level. This provides an alternate means of egress when the primary routes are compromised, by carrying people into a separate, protected area on the same floor. The key requirement is that this path is properly protected with fire-resistive construction and safeguards (such as rated barriers and doors) to prevent smoke and fire from spreading into the path, ensuring safe travel to a safer area. It isn’t about going upward via ramps, it isn’t limited to exterior courtyards, and it doesn’t bypass smoke control; the protection is what makes the route usable for safe egress.

Horizontal exits are a protected, same-floor path that lets occupants move from one building or portion of a building to another on the same level. This provides an alternate means of egress when the primary routes are compromised, by carrying people into a separate, protected area on the same floor. The key requirement is that this path is properly protected with fire-resistive construction and safeguards (such as rated barriers and doors) to prevent smoke and fire from spreading into the path, ensuring safe travel to a safer area. It isn’t about going upward via ramps, it isn’t limited to exterior courtyards, and it doesn’t bypass smoke control; the protection is what makes the route usable for safe egress.