Machines for dispensing money, tickets or small goods should be accessible and should be located on an accessible level. The approach to dispensers should be clear and unobstructed, at least 900 mm wide. A knee space of minimum 700 mm in height and minimum 600 mm in depth and 900 mm in width should be provided to ease access for wheelchair users (see Fig. 69). The clear area immediately in front of the machine should be at least 1 500 mm × 1 500 mm, to allow a wheelchair user to approach the controls sideways, and to turn around after use and to provide some privacy.
Touch screen ticket dispensers at train/bus stations, etc, should not be the only type of ticket dispenser, as they are inaccessible to people with impaired vision. A numeric keypad should also be provided to make it
PART 3 DEVELOPMENT CONTROL RULES AND GENERAL BUILDING REQUIREMENTS

All dimensions in millimetres.
FIG. 67 SPACE ALLOWANCE FOR A WHEELCHAIR USER FOR USING TELEPHONE

All dimensions in millimetres.
FIG. 68 HEIGHT OF TELEPHONE CONTROLS FOR WHEELCHAIR USERS
accessible for visually impaired users.
Glare from sun, artificial lighting and street lighting on the screen should be avoided.
The operation of the machine should be easy to understand.
Where card access or coin slot is provided, they shall,
a) have a slot located at a height of between 800 mm and 1 000 mm above the floor, preferably between 800 mm and 900 mm,
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with its edge bevelled, and
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colour-contrasted with the surrounding surface;
b) include tactile graphic symbols on the surrounding surface that,
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represent the card, and
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identify the orientation of the card/coin insertion; and
c) have both audible (beep) and visual (light) signals to indicate that access has been granted.
Where a keypad is provided, it shall,
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be located at a height between 800 mm and 1 000 mm from the floor;
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be colour-contrasted with the background;
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have characters and symbols on key surfaces

All dimensions in millimetres.
FIG. 69 EXAMPLE OF A VENDING MACHINE
that are colour-contrasted with the key surfaces; d) where numeric,
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the keys shall be arranged in a 12-key ascending or descending telephone keypad layout,
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the number five key shall be tactilely distinct from the other keys; the raised dot on number five shall be mm high and shall have a base 1.5 mm in diameter, and
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function key surfaces shall have tactile symbols as follows: enter or proceed key: raised circle [o]; clear or correct key: raised left arrow [ ]; cancel key: raised letter × [x]; add value key: raised plus [+] sign; decrease value key: raised minus [-] sign; and
e) have both audible (beep) and visual (light) signals to indicate that access has been granted; and
f) have the keys readable from both a standing and a seated position.
NOTE — For ATMs and similar facilities, other requirements as laid down by the concerned authorities shall be followed.