Ключевые слова: accessibility, ascent, background, building, button, cabin, call, call button, construction, control, convenience, descent, design, disability, disabled person, disabled person sign, door, doorway, electric, electrical, electricity, elevator, elevator doors, energy, entrance, equipment, exit, grey, hand, indoor, infrastructure, inside, interior, lift, lift call button, metallic, modern, moving, object, projection, public, residential building, sign, symbol, technology, transport, use, wall, wide elevator doors, yellow sign,