DDA Compliance for Turnstiles, Speed Gates and Flap Barriers: What You Need to Know

This article summarises the key accessibility requirements under AS 1428.1 – Australia’s Design for Access and Mobility standard – as they apply to speed gates and turnstiles.

AS 1428.1 doesn’t regulate speed gates as a product category. Instead, it sets the accessibility benchmarks – clear widths, paths of travel, control placement and more – that any gate or turnstile installation must meet. These benchmarks sit within a broader framework that also includes the Disability Discrimination Act (DDA), the National Construction Code (NCC/BCA), and the Disability (Access to Premises – Buildings) Standards.

1. Accessible Path of Travel

AS 1428.1 specifies how to design doors, passageways and floor spaces so everyone can access and use public and private spaces. Any speed gate or turnstile installation sits within a continuous accessible path of travel, and it must not obstruct or restrict that path below the minimum dimensions.

2. Minimum Clear Width – the Critical Issue

A single-leaf door must have a minimum 850mm clear width when open at the narrowest point , letting wheelchair users travel through unobstructed.

This 850mm minimum directly affects gate and turnstile design. Although Rotech Automation’s J18, SL3 and Z58 turnstiles suit narrow spaces well, they don’t meet this threshold on their own. However, you can pair them with a single-leaf swing gate for wheelchairs to satisfy the point 3 requirement. Typically the maximum passage width of a tripod turnstile is usually 550-650mm. A wheelchair is generally at least 700mm wide, and you also need to account for clearance for the user’s hands to propel through the opening – meaning the passage width must be at least 850-900mm. Rotech’s Z23 and Z26HG Swing Gate Speed Gates customise up to 1,100mm passage width, while the DS8000 single-leaf reaches 900mm – or can also be customised into a double swing gate for extra width. 

3. An Accessible Gate Must Always Be Provided

A standard narrow turnstile cannot be the only means of access. Consistent with the DDA, swing barrier gates seamlessly create DDA-compliant accessible lanes – which is why they’re widely favoured. In practice, this means:

• At least one lane in any bank of speed gates or turnstiles must be a wide-clearance accessible gate (swing gate or wide speed gate), providing a minimum 850mm – and ideally 900mm+ – clear passage.
• Wide-version DDA speed gates can provide a clear passage width of 900mm, which is the accepted practical standard.

4. Controls and Card/Credential Readers

AS 1428.1 specifies where to position controls so a wheelchair user can reach and operate them. Key requirements include:

• Controls must be reachable from a seated position – generally between 900mm and 1100mm above finished floor level.
• Controls must not require tight grasping, pinching, or twisting.
• Reader heights and approach clearances must meet DDA requirements interpreted under the BCA.

5. Luminance Contrast and Signage

AS 1428.1:2021 extends to the visual and operational aspects of accessibility, mandating contrasting lines and luminance contrasts across doorways and adjacent walls, to guide individuals with vision impairments safely. Gate panels, barriers, and indicator lights must provide sufficient colour contrast, so they are distinguishable by people with low vision.

6. Tactile Ground Surface Indicators (TGSIs)

Where pedestrians approach a bank of turnstiles or speed gates, TGSIs may be required to assist people with vision impairment in locating the accessible lane. TGSIs shall be installed in accordance with AS 1428.4.1.

7. Fail-Safe / Emergency Egress

Gates forming part of a required exit path must integrate with the fire alarm system and reliably fail-safe – opening automatically upon activation or power loss – ensuring unimpeded egress. The aggregate clear width provided must meet calculations based on occupancy load.

8. Current Standard Version

From 29 July 2025, Australia’s key standard for building access and mobility is AS 1428.1-2021, replacing the 2009 version in both the NCC 2022 Amendment 2 and the Disability (Access to Premises – Buildings) Standards 2010. Although the changes mainly clarify existing requirements for consistent interpretation, they also revise the clause numbering.

Speed Gate and Turnstile Accessibility Compliance Checklist

Important note: AS 1428.1 is a building design standard – it sets the environment in which gates sit. For specific product selection and compliance sign-off, always engage a qualified Access Consultant and check against the current NCC and Premises Standards for your jurisdiction, as state/territory requirements can vary.