Abstract: A U-turn signal indicator system for a vehicle includes an indicator assembly including a first portion that may have a first color, and a second portion configured to form a symbol for a U-turn. The second portion may have a second color that contrasts with the first color. The U-turn signal indicator system may further include a light emitting element configured to illuminate the first portion and the second portion, and a control device configured to activate the light emitting element.

Abstract: A perimeter security system for maintaining an object relative to a predefined boundary includes a plurality of water displacement devices configured to output fluid and to control a pressure of the outputted fluid when the object is within a first predetermined distance from the boundary. The system further includes a plurality of light sources configured to emit light toward the object when the object is within a second predetermined distance from the boundary. The system additionally includes an auditory system configured to emit an audible output when the object is within a third predetermined distance from the boundary, and a visual sensor configured to obtain images or video of at least a portion of the predetermined boundary and to transmit the images or video to a location other than the predefined boundary.