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Pre-Movement Behaviour and Times In Health Sector Building Evacuations. Catriona MacCallum. Pre-Movement Behaviour and Time. Pre-Movement Behaviour encompasses all actions taken between the initial recognition of a fire cue and actual escape movement.

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pre movement behaviour and time
Pre-Movement Behaviour and Time
  • Pre-MovementBehaviour encompasses all actions taken between the initial recognition of a fire cue and actual escape movement.
  • Pre-Movement Time is the time taken between initial response to a fire cue and the decision to move towards an escape route.
aset rset
ASET/RSET
  • Within a Performance Based Design the ASET/RSET concept is practiced to determine whether a design is safe and provides adequate escape time or not.
  • ASET – Available Safe Egress Time.
  • RSET – Required Safe Egress Time.
  • When ASET>RSET, the design is considered safe.
slide4

The ASET/RSET concept is considered by some to be flawed as:

    • Takes no account of variations in capabilities & physical condition of an individual.
    • It assumes that a person will move robotically to the best exit.
    • It also ignores the wide variety of fire scenarios which can drastically change both RSET and ASET within the same building.
  • A Comparable Margin of Safety between two different strategies has been suggested.
health sector evacuations
Health Sector Evacuations
  • Individuals in the health sector are often dependant on the actions and instructions of staff.
  • It is difficult to predict which injuries/capabilities will present the greatest difficulty to staff during an evacuation.
evaluation process
Evaluation Process
  • Questionnaires
    • to evaluate and analyze the difference in behaviour and emotions between Evacuation Drills and an Actual Evacuations.
  • Interviews with staff
    • compile a schedule of methods used to evacuate during a fire and compare these with best practice;
    • to evaluate recommendations from staff members with regards to what they feel works during an actual evacuation.
  • Using historical research
    • to evaluate the effects of smoke, CO & HCN on movement and evaluate the effects of different quantities produced from different burning matter under flaming and smoldering conditions.
slide7

Using a test site

    • to analyze the fire scenario, actual evacuation data, drill data and time scales to evaluate how they compare with published material.
  • Using raw data
    • To evaluate whether ASET/RSET or Comparative Margin of Safety would have provided a more effective evacuation for staff and patients alike.
progress future work
Progress & Future Work
  • Progress
    • This work has been under-investigation for approximately 2 months;
    • The initial questionnaires have been created & reviewed.
    • Negotiations are on-going with target hospitals and the HSE.
  • To be completed
    • Final questionnaire(s) to be distributed;
    • Evacuations to be carried out and or historical evacuations analysed;
    • Interviews to be scheduled;
    • Data to be analyzed and conclusions drawn.
thank you for your time questions

Thank you for your time.Questions?

Catriona MacCallum

Pre-Movement Behaviour and Times In Health Sector Building Evacuations