Refernce Documents - RAL25 0001

                 5.1              INPUTS

                 Fire behaviour modelling was carried out via GIS spatial modelling using rasterised inputs 2
                 described by Leonard et al. (2014):

                       i.          Fuel load based on a combination site-based survey and desktop assessment of
                                   vegetation hazard class.
                    ii.            Maximum landscape slope.
                   iii.            Fire weather severity/FFDI.

                 5.1.1             VEGETATION HAZARD CLASS AND FUEL LOAD

                 Fuel load was derived from an estimate of potential fuel load (tonnes/ha) for 25 grouped
                 vegetation hazard classes (VHCs). VHCs have been categorised from a combination of
                 regional ecosystem maps, pre-clearing regional ecosystem maps (where no remnant
                 vegetation is mapped), foliage projection cover maps, land use maps, water body maps, air
                 photo interpretation (API) and tree plantation maps (Leonard et al. 2014). Map 4 and Map 5
                 (attached) show the SPP VHCs and SPP potential fuel loads for the site assessment area,
                 respectively.

                 As the proposed development involves changes to the configuration of vegetation within the
                 site assessment area, a post-development map of VHCs was necessary. The post-
                 development map incorporated:

                             i.     the proposed development footprint,
                            ii.     landscaping and rehabilitation outcomes proposed as part of the development of the
                                    land, including the effects of revegetation,
                        iii.        other differences between VHCs observed from a combination site-based survey and
                                    desktop methods.

                 VHCs were assessed at several locations within the 150m site assessment area (Refer to Map
                 6 and Appendix 2). VHCs within the site assessment area were determined in accordance
                 with Bushfire Resilient Communities (Queensland Fire and Emergency Services 2019) using a
                 combination of:

                             i.     Quaternary botanical survey according to Neldner et al. (2012);
                            ii.     Current regional ecosystem mapping 3; and,




                 2 VHC/fuel load, maximum landscape slope and fire weather severity input rasters can be accessed via the

                 Queensland Government Information Service (http://dds.information.qld.gov.au/dds/).

                 3Department of Environment and Science (2021). Biodiversity status of remnant regional ecosystems v12.0.

                 Queensland Herbarium. Brisbane, State of Queensland..

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Document Set ID: 23448646
Version: 1, Version Date: 13/01/2025