When a part of a corridor changes itself to interact with another object, that object is known as a _______.

• A. Contact
• B. Interface
• C. Overlay
• D. Target

Answer: (D)

In corridor design, parts can drive their geometry by referencing another element. When a portion of the corridor changes itself to interact with that other element, the element being interacted with is called a target. The corridor uses this target as the reference to shape or position its own geometry, such as matching to an existing surface or alignment. The other terms don’t fit this relationship: contact isn’t the standard term for this driving reference, overlay refers to a layer or surface placed over something, and interface isn’t used to name the object being referenced in this context. So the interacting object is the target.