20517 App O.pdf [As Published] · 132007.1259

NY

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All sign surfaces must be non reflective and with an 80% matte finish. The use of
natural, polished or linished metal surfaces must be avoided.

All embossed or raised graphics and or text must have a minimum 30% luminance
contrast with the backgrounds behind each embossed or raised element.

The background of the sign must have a minimum 30% luminance contrast with the
surface it is being viewed against.

Where the background of the sign does not have a minimum 30% luminance
contrast with the surface it is being viewed against, the use of a luminance
contrasting border around the sign with a minimum width of 5mm must be included
to achieve luminance contrast.

The Raised Tactile and Braille information must be manufactured using a process
which excludes any cut out, applied, engraved or inserted material. All graphics and
text must be embossed and integral to the sign to minimise chipping, falling off,
dirt/oacteria build-up or vandalism.

The thickness of raised or embossed graphics and text must be between 1.0mm and
1.5mm above the surface underneath each character or graphic.

The use of Internationally recognised symbols/graphics is preferred ahead of words.
(Refer to AS1428.1 and AS2899.1 for acceptable graphics).

Where graphics and/or words are used these must be consistent throughout the built
environment.

Tactile characters, symbols, and the like, must have slightly rounded edges.

The entire sign, including any frame, must have slightly rounded edges.

The minimum letter spacing of tactile characters on signs must be 2mm.

The minimum word spacing of tactile words on signs must be 10mm.

Fonts (sans serif) with letters of constant stroke width must be used:

Sentence Case (Upper Case for the first letter of each main word and lower case for
all other letters) must be used on all Raised Tactile and Braille Signs.

Upper Case Tactile letters must have a minimum height of 15mm and a maximum
height of 55mm on all Raised Tactile Signs (excludes Raised Tactile text used on
maps)

Upper Case Tactile letters on Tactile Map Surfaces can have a minimum height of
12mm.

The width of the stroke must allow the finger to touch both sides of the embossed
letter or numeral with a single pass. The width of the stroke must be between 2mm
and 7mm.

Where graphics only are used on a sign the distance between the bottom of the
graphic and the top of the Braille cells must be 8mm

Where text is used on a sign, the Brailie must be located under the text. The
distance between the bottom of the text line and the top of the Braille cells (excluding
decenders) must be 8mm.

For clarity, punctuation should be used sparingly and the use of full stops at the end
of words must be avoided. Abbreviations must also be avoided.

On Directional Signs only, alignment must be ranged in the accordance with the
direction being described. Text for right direction must be right aligned and text for
left direction must be left aligned.

Sign Specification

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