Federation Villages Floodplain Risk Management Study and Plan
Table 28 Multicriteria Matrix Assessment – Scoring System
BC < 0.1
BC: 0.1- 0.5
BC: 0.5-0.9
Implementation Complexity
Potential design, implementation Major constraints and Constraints or Constraints or and operational challenges and uncertainties which may uncertainties which may uncertainties which may constraints. Risk can increase with render the option significantly increase increase costs or implementation timeframe unfeasible costs or timeframes timeframes moderately
Staging of Works
Ab ility to stage proposed works
Impact on Emergency Services
Change in demand on emergency services (SES, Police, Amb ulance, Fire, RFS etc).
Emergency Access
Flood depths and duration changes for critical transport routes
Impact on critical and/or vulnerable facilities 1
Disruption to critical facilities
Impact on Properties
No. of properties flooded over floor. Across all events
Works cannot be staged
Major disbenefit
Moderate Disbenefit
Minor Disbenefit
2-5 adversely affected
IC
>5 adversely affected
<2 adversely affected
BL
Moderately increased in Significantly increased in populated area Slightly increased highly populated area (Increasing by 2 or more (Increase by 1 category) (Increasing to H5/H6) categories)
Community Flood Awareness
Change in community flood awareness, preparedness and response
Social disruption
Closure of or restricted access to community facilities (including recreation)
Normal access Normal access routes No Change to acess but significantly reduced or moderately reduced or facilities disrupted for up facilities disrupted for > 5 facilities disrupted for 2to 12 hours days 4 days
Community and stakeholder support2
Level of agreement (expressed via formal sub missions and informal discussions)
Strong opposition by numerous submissions
Impacts or b enefits to flora/fauna
Capital and ongoing costs and funding sources availab le
BC: 1.0 - 1.4
BC: 1.4 - 1.7
BC >1.7
NA
Constraints that can be overcome with moderate investment of time and resources
Constraints that can be overcome easily
No constraints or uncertainties
NA
Some minor components of the works may be staged
Some major components of the works may be staged
Neutral
Minor Benefit
Moderate Benefit
Major Benefit
No Change
Moderate decrease in local or main road flooding
Significant decrease in main road flooding
Local and main roads previously flooded now flood free
No Change
Period of inoperation reduced by 0-4 hours
Period of inoperation reduced by > 4 hours
Prevents disruption of critical facility altogether
None
<2 benefitted
2 to 5 benefitted
>5 benefitted
No Change
Slightly reduced (Decrease by 1 category)
Moderately reduced in populated area (Decrease by 2 or more categories)
Significantly reduced in highly populated area (Decrease from H5/H6)
No Change
Slightly improved
Moderately improved
Significantly improved
Reduces duration of access disruption or facility disruption by up to 12 hours Individual submissions with support Planting of isolated trees, minor landscapng. Reduced impact on contributory item within a heritage conservation area Moderate capital and ongoing costs, partial funding available; or low capital and ongoing costs, no funding available
Reduces duration of access disruptioin or facility disruption by 2-4 days
Prevents disruption of access or facility altogether
Moderate support in several submissions
Strong support by numerous submissions
Likely isolated vegetation/habitat benefits
Likely broad-scale vegetation/habitat benefits
Reduced impact on local heritage item
Reduced impact on State, National or Aboriginal Heritage item
BC = 1 (Or NA)
R
Slightly reduced
No Change
Individual submissions with opposition
Neutral
Likely isolated vegetation/habitat impacts
Removal of isolated trees, minor landscapng.
Neutral
Likely impact on State, National or Aboriginal Heritage Item
Likely impact on local heritage item
Likely impact on contributory item within a heritage conservation area
No impact
Significant capital and ongoing costs, or no external funding or assistance available
Moderate capital and ongoing costs, no funding available
High capital and ongoing costs, partial funding available
NA
Conflicts directly with objectives of several plans, policies or projects
Conflicts with several objectives or direct conflict with one or few objectives
Minor conflicts with some objectives, with scope to overcome conflict
Not relevant
Likely broad-scale vegetation/habitat impacts
AF
R
D
Moderately reduced
FO
Financial Feasibility and Funding Availability
Level of compatib ility
3
Moderate opposition in several submissions
T
Impacts to heritage items
Significantly reduced
PU
Change in hazard classification
Environmental
Impact on flood hazard
Compatibility with existing Council plans, policies or projects
2
EX
Key access roads Moderate increase in become flooded that Significant increase in local or main road were previously flood main road flooding flooding free Inoperational for several Inoperational for several Inoperational for one day days hours
1
N
-1
Economic Merits
Heritage Conservation Areas and Heritage Items
2
-2
Comparison of the economic b enefits against the capital and ongoing costs
Impacts on Flora & Fauna (inc. street trees)
1
Score 0
-3
H IB IT IO
Metric
Other Aspects
Social
Economic
Criteria
Minor support for one or few objectives
Low to moderate capital Full external funding and and ongoing costs, management available partial funding available
Some support for Achieving objectives of several objectives, or several plans, policies or achieving one objective projects
Critical facilities are those properties that, if flooded, would result in severe consequences to public health and safety. These may include fire, ambulance and police stations, hospitals, water and electricity supply, buses/train stations and chemical plants. Vulnerable facilities refer to those properties with vulnerable occupants, such as nursing homes or schools. Community and stakeholder support scores will be completed following Public Exhibition
118048: R211211_FederationVillagesFRMSP.docx: 11 December 2021
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