These markers define the lane path through a contaminated area and indicate the limits of the lane width.

These markers define the lane path through a contaminated area and indicate the limits of the lane width.

• A. Handrail Markers
• B. Boundary Flags
• C. Tape Markers
• D. Cones and Ropes

Answer: (A)

The main idea is guiding movement through a contaminated area by tying the movement path to a fixed feature in the environment. Handrail markers provide a continuous, durable cue along the handrail, clearly showing both the lane path and its width as you progress. Because the handrail runs the length of the corridor, markers attached to it stay with you and define a stable boundary, even if floor markings become obscured or contaminated. This fixed reference helps maintain a consistent channel and reduces deviation from the approved path. Other marking methods rely on ground-based or portable elements that can be displaced or compromised: boundary flags can be moved or lost, tape markers can wear, tear, or pick up contaminants, and cones with ropes require setup and can shift. The handrail-based approach offers a more reliable, integrated way to establish and maintain the lane through the contaminated area.

The main idea is guiding movement through a contaminated area by tying the movement path to a fixed feature in the environment. Handrail markers provide a continuous, durable cue along the handrail, clearly showing both the lane path and its width as you progress. Because the handrail runs the length of the corridor, markers attached to it stay with you and define a stable boundary, even if floor markings become obscured or contaminated. This fixed reference helps maintain a consistent channel and reduces deviation from the approved path.

Other marking methods rely on ground-based or portable elements that can be displaced or compromised: boundary flags can be moved or lost, tape markers can wear, tear, or pick up contaminants, and cones with ropes require setup and can shift. The handrail-based approach offers a more reliable, integrated way to establish and maintain the lane through the contaminated area.