Geoscience Reference
In-Depth Information
Fig. 15
Evacuation scenario (scene-2)
and evacuate from proper exits relevant to their floor number following evacuation
lights which have been turned on indicating the direction of exits.
Suddenly, user feels that his mobile device vibrates asking him whether he wants
to get instructions to go out of the building. He realizes that his mobile device fol-
lows the path to the nearest stairs and tells him to go downstairs just as voice from
speakers. According to his mobile device there has been “LOW” risk for him in the
stairs but this is not as much to prevent him to use the stairs (Fig.
15
).
User goes downstairs without hesitation till he arrives 3rd floor. Although voice
instructions still wants him to go downstairs till ground floor, his mobile device
finds an alternative shortest path because there has been a link on his way with
“MEDIUM” risk level which is not acceptable by the routing system (Fig.
16
). So,
the system has found an alternative path which does not include any link with the
“MEDIUM” or higher risk level. Ismail follows his mobile device's instructions
and arrives the exit safely.
We have prepared four different charts (Figs.
17
,
18
,
19
,
20
) for better explain-
ing the evacuation process and for comparing the situation of the links traversed
by the user with the situation of all links affected by fire. These charts show the
temperature, fire growth rate, carbon monoxide density and visibility values occur-
ring during fire evacuation respectively. The status of the links traversed by the
user is shown by a red line and the average value of each parameter occurring on
all links affected by fire is shown by blue line.
As seen in all charts, our intelligent individual evacuation model routes the sys-
tem user to the links having more appropriate situation than the average status val-
ues of all links affected by fire.
The evacuation process is completed in 198 s. As seen in Fig.
17
, the temperature
values of the links that user has been guided during evacuation process is generally
