7
7
Tabel 2.2 Perhitungan Skor dengan Metode Individual Fatigue
Likelihood Score
Prior sleep/wake
factor
Threshold
value
Scoring
X
(sleep in prior
24 hours)
5
hours
Add 4 points for
every hour
below threshold
Y
(sleep in prior
48 hours)
12 hours
Add 2 points for
each hour below
threshold
Z
(time awake
since last sleep)
Y
Add 1 point for
each hour of
wakefulness
greater than Y
Sumber: (Transport Canada, 2012)
Tabel 2.3 Decison Tree Berdasarkan Metode Individual
Fatigue Likelihood Score
Individual
Fatigue Score
Risk Level
Approved Controls
Zero
Acceptable
No additional controls necessary
except in the presence of higher
level indicators of fatigue (i.e.
symptoms, errors, or incidents).
1-4
Minor
Inform line supervisor and
document in daily logbook. Self-
monitor for fatigue-related
symptoms, and apply individual
controls such as strategic use of
caffeine, task rotation, working in
pairs, additional rest breaks.
5-8
Moderate
Inform local manager and
document in a fatigue report.
Implement additional fatigue
controls such as task reallocation,
napping, and increased level of peer
and supervisory monitoring.
9+
Significant
Call manager before driving to
work. Document in a fatigue report
on next work shift. Do not engage in
safety-critical tasks (including
driving to work), and do not return
to work until sufficiently rested as
per sleep/time awake rules.
Sumber: (Transport Canada, 2012)
2.5
Kendall Rank Order
Correlation
Kendall
Rank Order
Correlation
merupakan salah satu
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