This dialog box appears when some noise objects are to be deleted. As the title on the dialog box, it says which object type it is about, e.g., Delete road. The text in the dialog box is: “Do you want to delete the line as well?”
Yes - The line(s) of the object is(are) deleted from the drawing.
No - The line(s) of the object is (are) left in the drawing, but all of the noise information is removed and the color is reset to the original value prior to the object being defined in the noise module.