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Fig. 3 | BMC Public Health

Fig. 3

From: Flight crew fatigue risk assessment for international flights under the COVID-19 outbreak response exemption policy

Fig. 3

SAFE model simulation predictions for the 12:00 noon flight schedule under the exemption and the CCAR-121 policies, with A and B showing the outbound (manned by flight crews e and f) and return (manned by flight crews g and h) flights, respectively, and C and D showing the outbound and return (both manned by flight crews o and p) flights, respectively, under the CCAR-121 policy. Crews o and p are on duty). A comparison of A and C shows the fatigue risk levels for flight crews flying under the exemption approach and CCAR-121 regulations on outbound flights. A comparison of B and D shows a comparison of the fatigue risk levels for flight crews flying under the exemption approach and CCAR-121 regulations on return trip flights. Note: The meaning of the level of risk represented by the different colours is determined by Table 3. PVG stands for Shanghai Pudong International Airport; FRA stands for Frankfurt International Airport; CKG stands for Chongqing Jiangbei International Airport; AMS stands for Amsterdam International Airport. The number at the end of the duty refers to the number of sectors flown during the duty

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