means the length of the overlap between two time windows.
After finishing the service for gas station i, the tanker will select a gas station from the set of feasible succes-
Z. P. Li, Z. G. Wu
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sor gas stations based on the transfer probability. Firstly, the transfer probability is calculated, and the successor
gas station is chosen by the roulette wheel method, and added to the tanker’s route.
The heuristic algorithm can be described as follows: