Tactile ground surface indicators
Integrated and discrete TGSIs supplied and installed to AS/NZS 1428.4.1 at stairs, ramps, kerbs and platform edges. New finishes and existing floors.
Where they are used
The top and bottom of every stair and ramp on an accessible path of travel, kerb ramps and pedestrian crossings, railway and bus platform edges, escalator and travelator landings, and at any hazard on a path of travel the standard names.
What is supplied
| Type | Warning (hazard) indicators and directional indicators |
| Discrete | Individual studs and bars, drilled and fixed or bonded. Stainless steel, brass, aluminium, polyurethane |
| Integrated | Tiles, plates and pavers with the indicators formed in. Porcelain, concrete, rubber, stainless |
| Luminance contrast | Selected against the surrounding surface to the level the standard requires for the indicator type |
| Layout | Set out to the depths, offsets and widths the standard requires for the location |
| Substrates | Concrete, tile, stone, vinyl, timber, asphalt, brick paving |
Installation
Set out from the standard, marked and checked before fixing. Discrete indicators are drilled and mechanically fixed, or bonded, according to the substrate and the manufacturer's method. Integrated tiles are bedded into new wet-laid finishes or adhered to prepared existing floors. Existing non-conforming, damaged or lifting indicators are removed and the surface made good before replacement.
Installation on operating sites, stations, campuses and live construction programs, staged to keep the path of travel open.
Rectification
TGSIs are among the commonest items on a surveyor's or access consultant's list at occupancy: missing at one end of a stair, wrong offset, insufficient contrast, lifting. Send the list or a photograph and the item is priced the same day.
Documentation and handover
Product data, luminance contrast selection, the set-out detail and photographs, supplied for the building surveyor, access consultant or asset register. Certification and sign-off remain with the surveyor. Installation carries a 24 month workmanship guarantee.
Enquiries
Send drawings, a defects list or a description of the site. Enquiries are answered within one business day.