We introduce the driver assignment vehicle routing problem, DAVRP. In this problem, drivers are assigned to customers before demand is known, and after demand is known a routing schedule has to be made such that every driver visits at least a fraction a of its assigned customers. We present a solution procedure to investigate how much transportation costs increase by adhering to the driver assignments. Furthermore, we distinguish between the case in which customers that are not visited by their assigned driver are visited by backup drivers only, and the case in which slack capacity of regular drivers is utilized to visit these customers. We use randomly generated instances of the DAVRP to provide examples where the difference in transportation costs is substantial. (C) 2016 Wiley Periodicals, Inc.
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Univ Coimbra, CeBER, Av Dias da Silva 165, P-3000 Coimbra, Portugal
Univ Coimbra, Fac Econ, Av Dias da Silva 165, P-3000 Coimbra, Portugal
Univ Fed Vicosa, Vicosa, MG, BrazilUniv Coimbra, CeBER, Av Dias da Silva 165, P-3000 Coimbra, Portugal
Monnerat, Filipe
Dias, Joana
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Univ Coimbra, CeBER, Av Dias da Silva 165, P-3000 Coimbra, Portugal
Univ Coimbra, Fac Econ, Av Dias da Silva 165, P-3000 Coimbra, Portugal
Univ Coimbra, DEEC, INESC Coimbra, Polo 2, P-3030290 Coimbra, PortugalUniv Coimbra, CeBER, Av Dias da Silva 165, P-3000 Coimbra, Portugal
Dias, Joana
Alves, Maria Joao
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Univ Coimbra, CeBER, Av Dias da Silva 165, P-3000 Coimbra, Portugal
Univ Coimbra, Fac Econ, Av Dias da Silva 165, P-3000 Coimbra, Portugal
Univ Coimbra, DEEC, INESC Coimbra, Polo 2, P-3030290 Coimbra, PortugalUniv Coimbra, CeBER, Av Dias da Silva 165, P-3000 Coimbra, Portugal