Appendix D - Bushfire Risk Assessment and Management Plan

                         Ecological Natural Area Management


6.2       Modelled bushfire attacks
Six bushfire attacks were modelled based on the proximity of classified vegetation. Bushfire attack
attenuation was included in the bushfire behaviour modelling due to:
      •    Constrained fire runs caused by fragmentation of the vegetation from urban development.
           (A short fire run can be used to attenuate bushfire attack parameters as it has been shown
           that it takes a period of time and therefore a fire run distance for a bushfire to reach it full
           quasi-steady state rate of spread (Cheney and Gould, 1997). The effect of a reduced
           bushfire forward rate of spread on the reduction of assessed bushfire attack parameters
           was modelled using the method of Tan (2006) and
      •    Radiant heat shielding for the north bushfire attacks afforded by the the 2m fence




      Figure 12: Map showing the modelled bushfire attack directions




Bushfire Risk Assmnt & Mngt Plan for a “Community housing” development at 55 Carpenters Rd, Cooroy   February 2022

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