access verification methods & handbook · 2019. 8. 21. · as1428.1 (2009) turning &...
TRANSCRIPT
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 $$$