Below is a description of the principles for determining the evacuation start time.
If the building is equipped with a fire alarm system or automatic fire extinguishing installations that perform the functions of a fire alarm system, and a fire warning and evacuation control system, then the evacuation start time is determined according to the following formula.
where:
$t_{thres}$ - time to the threshold value of the fire detector. For details, see Detector
$t_{inert}$ - delay time associated with the inertia of the fire detection system. For details, see Detector
$t_{delay}$ - delay time associated with the delay in alerting people in case of fire. It is taken equal to zero for simultaneous notification of people in the building or is determined by the notification algorithm for staged notification.
To set the evacuation start time individually for each person, you must Set the evacuation start time for the building, each floor, room, and also individually for each person.
You can set the evacuation start time for a person at the moment of their placement on the scene, or after placement, by selecting them with the Pointer tool and changing the corresponding property.
You can set the evacuation start time for people in the room by selecting the room using the Pointer tool.
You can also set the evacuation start time for people on the floor in the Floor Properties window. See section Viewing and Editing Floor Properties.
The application allows you to set the evacuation start time for people in the building in the Building Properties window. See section Setting Building Properties.
To ensure the evacuation start time for people in buildings, rooms, or floors is accounted by the application when determining the evacuation start time for these people, it is necessary that the properties of the building, rooms, and floors have the evacuation start time set. By default, the evacuation start time is not set for the building, floors, or rooms (indicated by a dash in the field).
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If different evacuation start times are specified for a person, room, floor, and building, the following rules are applied to determine the evacuation start time for the person:
- If an evacuation start time is set for a person, then the evacuation start time is equal to the evacuation start time set for that person. Otherwise, follow rule 2.
- If a person is in a room and an evacuation start time is set for that room, then the person’s evacuation start time is equal to the evacuation start time set for that room. Otherwise, follow rule 3.
- If an evacuation start time is set for the floor on which the person is located, then the person’s evacuation start time is equal to the evacuation start time set for that floor. Otherwise, follow rule 4.
- If an evacuation start time is set for the building in which the person is located, then the person’s evacuation start time equals the evacuation start time set for that building. Otherwise, the evacuation start time is considered to be 0.
Thus, by setting the evacuation start time for a room, floor, and building, one can effectively and flexibly configure the evacuation start time for people located in the building.
Example 1.
In this example, the evacuation start time is set for the floor.
The evacuation start time for people located in room 1 is 10 seconds (as set for the room).
For people in room 2, the evacuation start time is 5 seconds (as set for the floor).
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Example 2.
In this example, no evacuation start time is set for the floor.
The evacuation start time for people located in room 1 is 10 seconds (as set for the room).
For people in room 2, the evacuation start time is determined by the value set for each person (default 0 seconds).
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