Keywords
absence, authority, close-up, color, communication, control, cut out, direction, equipment, focus on foreground, full length, green, green light, guidance, hand-held sign, ideas, no people, order, photography, police, protection, reflective, road signal, safety, security, sign, single object, still life, studio shot, traffic control, transportation, unknown, vertical, white background, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, 1220012