Reference Document - RAL26/0011 (As Published)

Table B - Identified Hazard Areas

    Fuel Area       Description                                                   Location

                    Area of remnant/regrowth vegetation associated with           Marginally Downslope from the development footprint to the
    HA1
                    RE12.5.3.                                                     east, south, and southwest.
    HA2             Area of remnant vegetation associated with RE12.5.2a.         Upslope from the development footprint to the northwest.

    HA3             Area of regrowth vegetation associated with RE12.3.4.         Upslope from the development footprint to the southwest.


Hazard Area Descriptions
The following section details the individual hazard area. It provides an assessment and verification of the potential bushfire
hazard classification based on a qualitative assessment of fuel characteristics and/or potential fireline intensity (kW/m).
Fireline intensity measures the rate that a fire would consume fuel energy per unit time per unit length of fire front and is based
upon the following equation (following the DILGP 2016 ‘Fit for Purpose' approach):


                𝑃𝐹𝐼 = 0.62 𝑃𝐹𝐿2 × 𝐹𝐹𝐷𝐼 𝑒𝑥𝑝 (0.069 𝑆𝑙𝑜𝑝𝑒)                                    (Equation 12)


The resultant fire-line intensity values are then compared with the DILGP 2016 Potential Bushfire Hazard Classes (Table C below)
to transparently assess the potential hazards of the identified areas in the proposed development.

Table C - Potential Bushfire Hazard Classes (adopted from DILGP 2016)
    Hazard Class                                                            Potential Fireline Intensity
                                                                            40,000+ kW/m
    1.    Very High

                                                                            20,000 – 40,000kW/m
    2.    High

                                                                            4,000 – 20,000kW/m
    3.    Medium

                                                                            0 – 4,000kW/m
    4.    Low



Unless otherwise detailed, Table D provides the references adopted for this assessment.

Table D - Data Sources for PFI Assessment
    Variable                                                                Reference
    Vegetation Hazard Class (VHC)                                           (QFD 2018)

    Potential Fuel Load (PFL)                                               (QFD 2018)

    Slope (o)                                                               (QLD Spatial Data (1m contours))

    Fire Weather Intensity (FFDI)                                           (QFD 2013; Leonard et al 2014)




2
    Where PFI = Potential Fire Line Intensity (kW/m), PFL = Potential Fuel Load (tonnes/ha), FFDI = Fire Weather Severity and Slope = Maximum
Slope (o)

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