Samin Aref

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In this paper the capacitated hub location problem is formulated by a minimax regret model, which takes into account uncertain setup cost and demand. We focus on hub location with multiple allocations as a strategic problem requiring one definite solution. Investigating how deterministic models may lead to sub-optimal solutions, we provide an efficient(More)
This study presents a novel approach to the vehicle routing problem by focusing on greenhouse gas emissions and fuel consumption aiming to mitigate adverse environmental effects of transportation. A time-dependent model with time windows is developed to incorporate speed and schedule in transportation. The model considers speed limits for different times of(More)
Previous formulation methods offered for capacitated hub location problem, including deter-ministic models and seasonal optimization, were ineffective under uncertainty. The former might to lead to sub-optimal solutions in case of significant fluctuations in problem parameters and the latter was not practical due to offering different networks while hub(More)
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