In training centers, stores, administrative and multi -storey buildings, vertical vehicles are installed to accelerate and facilitate the movement of people and goods. Relatively small area is its important advantage. This circumstance often forces to resort to this device, both in the industrial economy and in the communal. Many residential buildings, the number of storeys of which does not exceed five floors, are equipped with lifts. Even with low altitude, you have to use such lifts. An example of that is: