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Lifts are controlled by a microprocessor in the machine room.This logs all passenger calls and monitors the number of passengers travelling from floor to floor, the position of any car in the system, and its speed. 1 _______. Lifts have many safety devices which make it virtually impossible for an accident to happen. 2 _______. Each one is strong enough to support the car. If the car starts too quickly, a governor or safety brake locks the car to the guide rails. 3 _______. Doors on the car ensure that no passenger can be injured by contact with the shaft. The car cannot move until both sets of doors are closed. 4 _______. All these things combined make travel in lifts one of the safest journeys you can make!
It can direct passengers to the car which will get them to their destination fastest and will prevent any car which is overloaded from moving.
The cables consist of up to eight steel ropes wound together.
Doors on each floor ensure that no one can fall down an open lift shaft.
Finally, at the bottom of the shaft there are large shock absorbers, or buffers, to cushion the impact of any fall.
