A system andor method for increasing safety in areas in which people work andor through which people travel that potentially may become blocked is provided. It is known from the prior art that the relative position of a neutral point represents a measure of the instantaneous stability of a rolling process. In a number of embodiments, video streams from a variety of sources are segmented. The elongate body has a longitudinal length extending from the elongate body’s first end to its second, opposite end. The method also includes forming a waveguide device in the optical device region, wherein forming the waveguide device includes exposing a portion of the second semiconductor layer in the optical device region; and epitaxially growing a third semiconductor layer over the exposed portion of the second semiconductor layer. At least one upper weight pocket is located at the interior of the shell adjacent one of the arm openings.