Automatic elevator

Automatic elevators are elevators that runs automatically without having passengers to press floor buttons. They can either be a traction or hydraulic mode  When passenger enters and/or leaves the elevator cab, door sensors detects passengers as they enters and/or leaves. After the doors closed, the elevator will starts to run by it’s own, then stopping on each floors (when there are more than two floors). Inside the cab there are no floor buttons except alarm and door control buttons.