Disability Access Consultants


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Luminance Contrast of TGSI's

Can you see the hazard?

Hazard Tactile Ground Surface Indicator’s (TGSI’s) have two (2) main roles.

  1.  Warn about hazards, and
  2. Provide information about direction.

As seen in the above photo – this hazard TGSI, blends into the decking and this makes the TGSI really difficult to see.

The question is – How could this TGSI be of any use to a person with vision loss becuase they wont be able to see it?

It is essential that TGSI’s (Tactile Ground Surface Indicators) are installed so that the following is carefully carefully considered because TGSI’s must comply:

  1. Do the proposed TGSI’s meet the minimum luminance contrast requirements? Read More 
  2. Do the proposed TGSI’s provide sufficient information so that people can make informed decisions relating to the direction of travel that should be taken?

It’s a reasonable conclusion that the above TGSI’s, when considering these two (2) questions, do not perform as the Australian Standards and Building Codes requires TGSI’s to meet and are considered as Non-conforming.

These TGSI’s create a potentially dangerous situation, and this is something to be very concerned about!!

Why is it dangerous?

It’s dangerous because someone who relies on TGSI’s for navigating through the built environment will not see these TGSI’s and as a result not be informed about the pending hazard (falling off of the stairway).

Ensure Proposed TGSI's meet the Minimum Requirements

Ensuring that the proposed TGSI’s meet the minimum requirements is as simple as 1 & 2.

  1. Firstly – Get Plans Checked
  2. Secondly – Have Luminance Contrast Testingundertaken.

Get Plans Checked

Have the proposed plans checked by an Accredited Disability Access Consultant
Click the button below to contact ASN regarding our disability access auditing services.
Click Here

Luminance Contrast Testing

ASN have compliant testing equipment for the determining of luminance contrast.
Click the button below to contact us and we will be able to undertake compliance testing.
Click Here

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