AS 1428.1-2009 PWD Code

                                                 7                                AS 1428.1—2009



      4.3 Angle of approach
      The angle between the centre-line of one continuous accessible path of travel and
      the centre-line of an intersecting continuous accessible path of travel.
      4.4 Braille
      A system of touch reading for the blind, which employs raised dots that are evenly
      arranged in quadrangular letter spaces or cells.
      4.5 Circulation space
      A clear unobstructed area, to enable persons using mobility aids to manoeuvre.
      4.6 Continuous accessible path of travel
      An uninterrupted path of travel to, into or within a building providing access to all
      accessible facilities.
      4.7 Encroachment
      The intrusion of a building component, fixture or fitment into a continuous
      accessible path of travel or circulation space.
      4.8 Hazard
      Any area or fixed object in or immediately adjacent to a direction of travel, which
      may place people at risk of injury.
      4.9 Kerb
      A side barrier to a trafficable or accessible pedestrian surface.
      4.10 Landing
      A resting place on a path of travel.
      4.11 Luminance contrast
      The light reflected from one surface or component, compared to the light reflected
      from another surface or component.
      4.12 Luminance factor
      The ratio of luminance of a surface to that of a perfect reflector, identically
      illuminated.
      4.13 People with ambulant disabilities
      People who have a mobility disability but are able to walk.
      4.14 Rail
      4.14.1 Grabrail
      A rail used to give a steadying or stabilizing assistance to a person engaged in a
      particular function.
      4.14.2 Handrail
      A rail used in circulation areas such as corridors, passageways, ramps and
      stairways to assist in continuous movement.
      4.15 Ramp
      An inclined surface on a continuous accessible path of travel between two landings
      with a gradient steeper than 1 in 20 but not steeper than 1 in 14.




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