Abstract
In this paper, the issue of vehicle routing with time window changes is addressed. Considering the uncertainty of customers’ time windows in distribution activities, this paper used the theory of disturbance management. The objective is to minimize the negative impacts of the perturbation attributed to time window changes. The identification of time window change that would cause a perturbation to the current distribution plan was analyzed. In order to measure the negative impact, three metrics of disturbance were analyzed in this paper, including path deviation, service time deviation and cost deviation. Based on vehicles’ positions at the disturbance time, a disturbance recovery model regarding to time window changes of customers is established. A dispatching method that is based on tabu search was proposed to obtain a timely and optimal solution. Finally, the computational experiments indicate that the proposed method is feasible for solving this real-word problem and is more effective than other incident-handling methods.
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