AS 1428.1-2009 PWD Code

                                                      33                              AS 1428.1—2009



      The edges of the threshold ramp shall be tapered or splayed at a minimum of 45°
      where the ramp does not abut a wall.
            NOTE: For door controls, see Clause 13.5.




                                         DIMENSIONS IN MILLIMETRES


                                     FIGURE 21 THRESHOLD RAMP

      10.6 Step ramps
      10.6.1 General
      Step ramps shall have—
      (a)      a maximum rise of 190 mm;
      (b)      a length not greater than 1900 mm; and
      (c)      a gradient not steeper than 1 in 10.
      Step ramps shall be as shown in Figures 22(A) and 22(B), as appropriate.
      The edges of step ramp shall have a 45° splay where there is pedestrian cross-
      traffic. Otherwise, it shall be protected by a suitable barrier, as shown in
      Figure 22(B), such as—
      (i)      a wall or suitable barrier with a minimum height of 450 mm; or
      (ii)     where an open balustrade is provided a kerb or kerb rail shall be provided.




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