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/NZS 1428.4.1 Compliant
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How Tactile Indicators Guide People Who Can't See Where They're Going?
A hospital in Box Hill called us after a vision-impaired patient walked into a glass door because there was no tactile warning. The hospital faced a complaint and urgent need to install appropriate tactile indicators throughout their public areas. Glass doors, stairs, ramps, escalators, platform edges, and pedestrian crossings all needed warning tactiles. Reception areas and long corridors needed directional tactiles to assist wayfinding.We assessed the entire facility and developed a comprehensive TGSI installation plan. Warning tactiles (the dots pattern) at every hazard point. Directional tactiles (the bars pattern) connecting key destinations. The hospital passed their accessibility re-audit and, more importantly, became genuinely navigable for vision-impaired patients and visitors.Tactile indicators work through texture that can be felt underfoot or detected with a cane. Warning tactiles have raised dots in a grid pattern that signal 'hazard ahead, stop and assess'. Directional tactiles have raised bars aligned with the direction of travel that signal 'safe path this way'. The patterns are internationally standardised so a vision-impaired person encountering them anywhere knows what they mean.Correct installation requires attention to detail that many contractors miss.
Key Benefits
AS/NZS 1428.4.1:2009 compliant installation with correct patterns, setbacks, and contrast requirements
Multiple material options: stainless steel discrete units, polymer tiles, and polyurethane integrated systems
Warning tactile installation at stairs, ramps, escalators, roads, platform edges, and glass hazards
Directional tactile installation for wayfinding in complex facilities and transport interchanges
Luminance contrast verification ensuring tactiles are visually detectable as required by standards
Integration with accessible parking, pedestrian crossings, and accessible paths of travel
Site Inspection
Free assessment and detailed quote
Professional Marking
Expert application with premium materials
Quality Assurance
Final inspection and compliance sign-off
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
VicRoads Approved
Registered Contractor
$20M Public Liability
$10M Professional Indemnity
5,000+ Projects
Since 2009
Fixed Prices
Not Estimates
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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