Tactile Ground Surface Indicators

Why do we need TGSI installations?

The majority of people who are blind or vision impaired have some vision. The provision of sufficient luminance-contrast in the design of signage and the choice of TGSIs will enhance access to information for people with vision impairment and forall pedestriansMore

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What exactly is luminance contrast?

Luminance contrast is defined in Australian Standard 1428.1-2009 as ‘the light reflected from one surface or component, compared to the light reflected from another surface or component’. It is not the difference in the colour or the colour contrast, but the difference in the light reflective properties of each colourMore

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As a designer or certifier are the “Discrete TGSIS” you are responsible for comply?

The key issue with the use of Discrete TGSIs is Luminance contrast, especially with the polished stainless steel type which generally do not comply. More

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Are You Specifying Or Approving Tactile Ground Surface Indicators TGSIs?

Ensure you are using the correct testing equipment and calculation when determining luminance contrast to ensure full compliance is achieved. Slip resistance is also a critical item for consideration.More

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Our Blogs

Specular Inclusive vs Specular Exclusive for Luminance Contrast

  • September 19, 2020
  • Tanisha Cowell

Measurement methods when testing for luminance contrast – Specular Inclusive vs Exclusive Most peop...

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Why Most Building Entrances Do Not Comply!

  • August 1, 2020
  • Catherine Roberts

Why is the Luminance Contrast requirement within AS1428.1 almost always ignored? Luminance Contrast is requi...

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Why providing Covid 19 screens is not enough

  • July 31, 2020
  • Bruce Bromley

Hearing Augmentation Requirements & Communicating in a Socially Distant Environment The COVID-19 ...

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