Table 4: Optimal crew rostering plan with and .

RotaCrew route sequenceWorking time (min)Income (yuan)

123162273712161353244215912.1
2891743203040111431847286134
310233826391921133251547335886
4424284235412729343644736069

Crewmembers used: 56, evaluation function: 4.0615, average working time: 4588.75 min, and average income: 6000.4 yuan.