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Multiple Choice

For an intermediate stairway landing to meet code requirements, it must:

The important idea is that the path people use to exit must keep its capacity from start to finish. An intermediate stairway landing is part of that same egress route, so its width should not get narrower as you move along the stairs in the direction of travel. If the landing were to decrease in width, it could become a bottleneck during an evacuation, slowing people down and hindering safety. Therefore, the rule is that the landing must continue with no decrease in width along the egress direction, preserving the exit capacity. The other options miss this focus on maintaining consistent width: a door opening on the landing isn’t required by this requirement; widening the landing isn’t the goal of the rule; and a smoke detector, while important, isn’t about the width of the egress path.

The important idea is that the path people use to exit must keep its capacity from start to finish. An intermediate stairway landing is part of that same egress route, so its width should not get narrower as you move along the stairs in the direction of travel. If the landing were to decrease in width, it could become a bottleneck during an evacuation, slowing people down and hindering safety. Therefore, the rule is that the landing must continue with no decrease in width along the egress direction, preserving the exit capacity. The other options miss this focus on maintaining consistent width: a door opening on the landing isn’t required by this requirement; widening the landing isn’t the goal of the rule; and a smoke detector, while important, isn’t about the width of the egress path.