Lifts should be provided to serve any floor above or below the principal entrance storey where the following nett floor areas are exceeded:

• Two-storey buildings - 280 m2 of nett floor area.

• Buildings exceeding two storeys -200 m2 of nett floor area.

Where passenger lifts are not provided a stair suitable for ambulent disabled people should be provided.

A suitable lift design is shown in Figure 10.5. Its main features are:

• An unobstructed, accessible landing space at least 1 500 m2 in front of the lift.

Figure 10.5 Lift (suitable for disabled people)

• A door or doors with a clear opening width of 800 mm.

• A car with minimum dimensions of 1100 mm wide by 1400 mm deep.

• Landing and car controls between 900 mm and 1 400 mm from landing or car floor levels and at least 400 mm from front wall.

• Tactile floor level indication where the lift serves more than three floors, on or adjacent to the lift buttons in the lift car to confirm the floor selected.

• Visual and vocal floor indication where the lift serves more than three floors.

• A signalling system which gives a five-second warning that the lift is about to stop at a floor and, once stopped, a minimum of five seconds before the doors begin to close after being fully open.

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