Can you see the hazard?
Hazard Tactile Ground Surface Indicator’s (TGSI’s) have two (2) main roles.
- Warn about hazards, and
- 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:
- Do the proposed TGSI’s meet the minimum luminance contrast requirements? Read More
- 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.
- Firstly – Get Plans Checked
- Secondly – Have Luminance Contrast Testingundertaken.
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Key Services
Desktop Access Audits provide a comprehensive report and we work along side governments, design teams, owners, companies etc. to ensure disability access is provided and compliance is achieved.
Onsite Access Audits provide a comprehensive report and we work along side governments, design teams, owners, companies etc. to ensure disability access is provided and compliance is achieved.
A performance solution report is where a deemed to satisfy provision is not met and an alternative building solution is proposed. The performance solution report is to articulate how the building solution is equal to or greater than that of the minimum requirement.
More and more requests are being made of product suppliers to provide a disability access compliance certification. ASN specialises in these certifications for suitability and usability of mainstream products for people with disability.
A luminance contrast test is a calculation between two (2) surfaces Light Reflectance Values (LRV’s). This determines the percentage of difference and is used to confirm compliance or deem not compliant.