Mark Relf – August 2019

Access Verification Methods & Handbook

Access Verification Methods :

OPPORTUNITY

MODERNISE

EDUCATE

BETTER Accessibility OUTCOMES

Access Verification Methods Handbook

DV2 Quantification Metrics will need to be extremely diverse

DV3 Fails

Ø Force; pushing and braking

Ø Age, gender, fitness, confidence

Ø Rolling resistance

Ø Tipping

2 Examples of potential metrics can assist

• Wheelchair manoeuvring, doorways, accessway widths.

• Alternate DV3 and user groups.

• Low vision luminance contrast.

AS 1428.1 (2009) based on 1983 research by John Bails

• Manual wheelchair users 18-60 age

• Tasks set up in a warehouse

• A80 occupied wheelchair footprint

Supplement to AS 1428.1-1988 (1990) republished in 1993

• A80 footprint

• A80 elevation & reach

• Circulation from 1:5 model

• Toilet transfers

• Stairways & ramps

• A80 occupied footprint extrapolated >>> A90

AS1428.1 (2009) Turning & Doorway Circulation

Moving forward - Examples of todays wheelchairs

Rehabilitation mantra “use it or loose it”

Power add-ons

Efficiency and reduced injuries

Examples of powered wheelchairs

So what is the relevance of the AS1428 Supplement in 2019

• Seeger 1990s re-affirmed the basic A80 footprint

• Steinfeld 2005

• Capel 2014 (52 subjects; 31 powered, 21 manual)

• Capel > Missed opportunity

• Who is the A90 wheelchair user reach, grip,

manoeuvrability, wheelchair functions ?

DV3 Fails

Ø Force; 40N pushing and 9N braking

Ø Age, gender, fitness, confidence

Ø Rolling resistance

Ø Tipping

Interpolation of intervals between ramp landings and other characteristics

Table DV3.1 Recommend For general use public buildings

Mxgj okt z Xgs v"Rkt mzn I xuyylgrr

Yrov"xkyoyzgt i kXgs v"y{ xlgi k"

k| kt t kyyJ x¡ ] kz

7@> 1520 1:100 P5 / R12 P5 / R12 0-.05mm

7@? 1650 1:100 P5 / R12 P5 / R12 0-.05mm

7@76 1900 1:100 P5 / R12 P5 / R12 0-1mm

7@77 4500 1:75 P5 / R12 P5 / R12 0-1mm

7@78 6000 1:50 P4 / R11 P5 / R12 0-2mm

7@79 7500 1:40 P4 / R11 P5 / R12 0-2mm

7@7: 9000 1:40 P3 / R10 P4 / R11 0-2mm

• Where to from hereØ New tools for the design sector that quantify the

modern experience of wheelchair users

Ø Biometric Apps that model movement along accessways, including body worn devices to assess fitness, efficiency of people pushing wheelchairs

Ø CAD modelling

Ø Utilise overseas research versus AU experiences

• Where to from hereØ Evaluate advances in technology, health, community

participation - NDIS and national disability strategy

Ø Recognise powered wheelchairs …. And scooters ?

Ø New research on rolling resistance for various surfaces.

• Where to from hereØ Take the opportunity from the Verification Methods

project to acknowledge the current system of Standards development is broken …. New resources.

Ø New model to underpin research to harness productivity goals touted by the ABCB.

Luminance Contrast & Low VisionØ How well are the Standards being implemented

Ø Glazing strips D3.12

Ø Nosing strips D3.3

Ø Doorways D3.3

Ø Tactiles D3.8

Ø Signage D3.6

Ø What is the basis for 30% luminance contrast

Ø How effective is 30% luminance contrast

Ø How do we measure luminance contrast

Ø What is low vision and threshold for blindness

• What is low vision and threshold for blindness

• Measuring vision (WHO ICD)

Ø Visual Acuity (VA)

Ø Contrast Sensitivity (CS)

Ø Field of Vision

What is low vision and VA threshold for blindness

• 20/20 or 6/6 is normal vision

• 20/70 or 6/18 is required or a drivers licence

• 20/200 or 6/60 legally blind in AU (60 font @ 6m)

• 20/400 or 6/120 (3/60) severe to profound vision loss

• 20/1000 or 6/300 is near blindness threshold and may only be able to count fingers at a 1m range

• Illumination is critical for people with low vision

Ø Low simulation apps - ISEE

Ø Low simulation apps - ISEE

Ø Develop a definition for low vision using field of vision and VA parameters and threshold for blindness.

Ø Develop simulation apps that allow input data for degrees of low vision and likely detectability of luminance contrasting elements.

Ø Research $$$