Hawkesbury-Nepean Catchment Flood Evacuation Planning

Supporting the NSW Government's emergency planning, land use planning and infrastructure planning with modelling projections indicating risks to life for people evacuating flooding events

The scenario planning for the Hawkesbury-Napean Valley region in north-west Sydney demonstrated levels of risks in evacuating people under nominated conditions

The simulation modelling forecasted locality-specific risk-to-life and operational performance of the evacuation network when loaded with a range of land use variations, dam height adjustments, road network upgrades and emergency operational options.

The evaluations were based on a range of population estimates up to 2041 and river rising flooding events up to the Probable Maximum Flood which included climate change conditions.

The Flood Evacuation Model 2.1 based on Multi-Agent Transport Simulation (MATSim) software was applied.

Achievements
  • Delivered around eighty scenario results under secure and sensitive conditions.

  • All results were accessible in a simulation visualisation format as well as interactive graphic reporting formats.

  • Produced and presented outcomes and results efficaciously to various committees and groups.

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