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    Informing tsunami evacuation modelling by evacuation dynamics from Christchurch and Banks Peninsula during the 2016 Kaikoura earthquake (2020)

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    POSTER - Barnhill_Inforing tsunami evacuation modelling by evacuation dynamics from Christchurch and Banks Peninsula during the 2016 Kaikōra ear.pdf (684.6Kb)
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    https://hdl.handle.net/10092/101505
    
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    • QuakeCoRE: Posters [76]
    Authors
    Barnhill, Danielle
    Wilson, Thomas
    Hughes, Matthew
    Beaven, Sarah
    Schoenfield, Marion
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    Abstract

    Recent tsunami events have highlighted the importance of effective tsunami risk management strategies (including land-use planning, structural and natural mitigation, warning systems, education and evacuation planning). However, the rarity of tsunami means that empirical data concerning reactions to tsunami warnings and evacuation behaviour is rare when compared to findings for evacuations from other hazards. More knowledge is required to document the full evacuation process, including responses to warnings, pre-evacuation actions, evacuation dynamics, and the return home. Tsunami evacuation modelling has the potential to inform evidence-based tsunami risk planning and response. However, to date, tsunami evacuation models have largely focused on the timings of evacuations, rather than behaviours of those evacuating. In this research, survey data was gathered from coastal communities in Banks Peninsula and Christchurch, New Zealand, relating to behaviours and actions during the November 14th 2016 Kaikōura earthquake tsunami. Survey questions asked about immediate actions following the earthquake shaking, reactions to tsunami warnings, pre-evacuation actions, evacuation dynamics and details on congestion. This data was analysed to characterise trends and identify factors that influenced evacuation actions and behaviour, and was further used to develop a realistic evacuation model prototype to evaluate the capacity of the roading network in Banks Peninsula during a tsunami evacuation. The evacuation model incorporated tsunami risk management strategies that have been implemented by local authorities, and exposure and vulnerability data, alongside the empirical data collected from the survey. This research enhances knowledge of tsunami evacuation behaviour and reactions to tsunami warnings, and can be used to refine evacuation planning to ensure that people can evacuate efficiently, thereby reducing their tsunami exposure and personal risk.

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    • Tsunami evacuation dynamics following the 2016 Kaikōura earthquake in Christchurch and Banks Peninsula, New Zealand, to inform tsunami evacuation modelling for Banks Peninsula 

      Barnhill, Danielle (University of Canterbury, 2020)
      Recent global tsunami events have highlighted the importance of effective tsunami risk management strategies (including land-use planning, structural and natural defences, warning systems, education and evacuation measures). ...
    • Understanding Tsunami Evacuation Dynamics: Informing Agent-Based Evacuation Modelling Through a Case Study of the 2016 Kaikōura Earthquake 

      Tilley, Laura; Barnhill, Danielle (2019)
      Tsunami events including the 2004 Indian Ocean Tsunami and the 2011 Tohoku Earthquake and Tsunami confirmed the need for Pacific-wide comprehensive risk mitigation and effective tsunami evacuation planning. New Zealand is ...
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