Tactile Ground Surface Indicators
We've installed tactile ground surface indicators at shopping centres, transport hubs, hospitals, and public buildings across Australia. Warning tactiles at hazards, directional tactiles for wayfinding, and integrated systems for complex facilities. AS/NZS 1428.4.1 compliant since 2009.
AS 1742.2 Compliant
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What is Tactile Indicators Guide People Who Can't See Where They're Going?
Key Benefits
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Compliance Standards
Tactile Ground Surface Indicators
AS/NZS 1428.4.1:2009 is the primary standard for TGSIs. Specifies warning and directional patterns, dimensions, setbacks from hazards, luminance contrast requirements, and installation guidance.
Warning Tactile Pattern
AS/NZS 1428.4.1 specifies warning tactiles as raised truncated domes (dots) in a regular grid pattern. Used to warn of hazards including stairs, ramps, escalators, roads, and level changes.
Directional Tactile Pattern
AS/NZS 1428.4.1 specifies directional tactiles as raised flat-topped bars aligned with direction of travel. Used to indicate safe paths and assist wayfinding for vision-impaired pedestrians.
Luminance Contrast Requirements
AS/NZS 1428.4.1 requires minimum 30% luminance contrast between tactiles and surrounding surface. We verify contrast using light reflectance value measurements to ensure compliance.
Building Code Accessibility
Building Code of Australia references AS 1428 series for accessibility requirements. TGSIs are required at specific hazard points in buildings and public spaces to achieve compliance.
Public Transport Accessibility
Disability Standards for Accessible Public Transport (DSAPT) specify TGSI requirements at public transport facilities including platform edges, ramps, and interchange areas.
Fully Compliant & Certified
All our work meets or exceeds Australian Standards and state road authority requirements
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$20M Public Liability
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5,000+ Projects
Since 2009
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AS 1742
Traffic Control Devices
Specifies line colours, widths, arrow designs, and placement for road markings. Ensures all traffic control devices meet national safety standards.
AS/NZS 2890
Parking Facilities
Covers bay dimensions (2.4m × 5.4m standard, 3.2m × 5.4m accessible), aisle widths, and traffic flow requirements for compliant parking areas.
AS 4586
Slip Resistance
Defines slip resistance classifications (P rating) for pedestrian surfaces. Critical for wet areas, ramps, and high-traffic zones.
AS/NZS 1428
Access & Mobility
Sets requirements for accessible parking bays, tactile indicators, and mobility access. Essential for DDA compliance and accessibility audits.
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Frequently Asked Questions
Warning tactiles have a raised dot pattern that signals 'hazard ahead, stop and assess'. Directional tactiles have raised bars aligned with travel direction that signal 'safe path this way'. Different patterns communicate different information to vision-impaired pedestrians.
Warning tactiles are required at stairs, ramps, escalators, pedestrian road crossings, railway platform edges, and other hazard points. Specific setback distances vary by hazard type and are specified in AS/NZS 1428.4.1.
Common options include stainless steel discrete studs drilled into existing surfaces, polymer or rubber tiles adhered to surfaces, and polyurethane integrated tiles for new construction. We recommend materials based on your surface type, traffic, and aesthetic requirements.
We measure the light reflectance value (LRV) of both the tactile and surrounding surface to calculate luminance contrast ratio. AS/NZS 1428.4.1 requires minimum 30% contrast. We select tactile colours that achieve this on your specific surface.
Yes, stainless steel discrete studs can be drilled into existing concrete, tiles, or pavers. Adhesive-applied polymer tiles work on smooth surfaces. We assess your existing surface and recommend the most appropriate installation method.
Yes, accessible parking often requires tactile indicators at the transition between shared spaces and pedestrian paths. We coordinate TGSI installation with accessible parking marking for complete accessibility compliance.
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