EXITT

• Model Name: EXITT
  Version: 1.0
  Classification: Egress model
  Very Short Description: EXITT is a node-and-arc type egress model for residential
  applications. From user selected initial positions people
  move via the shortest path toward a goal. The unique part
  of EXITT is the behavioral rules that strongly affect actions
  and time needed to exit.

  Modeler(s), Organization(s): Harold (Bud) Levin (retired) NIST, Building and Fire

  User’s Guide:
  Technical References:
  Validation References:
  Availability:
  Price:
  Necessary Hardware:
  Computer Language:
  Size:
  Contact Information:

  
  Detailed Description:

  
  Research Lab, Gaithersburg, MD (USA)
  Documentation included in the HAZARD I package
  Documentation included in the HAZARD I package
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  Distributed only as part of HAZARD I
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  see HAZARD I
  Basic
  see HAZARD I
  Richard Bukowski, NIST, (301) 975-6853,

  rbukowski@nist.gov
• EXITT’s node-and-arc movement model and shortest path algorithm is typical for egress
  models. The unique part is the behavioral rules that were developed from interviews with
  survivors of fires recounting their actions. Actions are associated with family groups and
  include adult males investigating while adult females going to children, young children
  hiding and awaiting instructions. Investigation proceeds until an unambiguous
  confirmation of fire such as seeing the fire or smoke, or meeting a person who has, is
  received. Movement speed is affected by smoke density. These behaviors have a very
  significant impact on the time needed for safe egress and, as such, are an important factor
  in judging safety in residential fire scenarios.