Heuristics for the traveling salesman problem with pickup and delivery
Computers and Operations Research
The vehicle routing problem
Tabu Search
Computers and Operations Research
The vehicle routing problem with restricted mixing of deliveries and pickups
Journal of Scheduling
Computers and Industrial Engineering
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The vehicle routing problem with deliveries and pickups is a challenging extension to the vehicle routing problem that lately attracted growing attention in the literature. This paper investigates the relationship between two versions of this problem, called "mixed" and "simultaneous". In particular, we wish to know whether a solution algorithm designed for the simultaneous case can solve the mixed case. To this end, we implement a metaheuristic based on reactive tabu search. The results suggest that this approach can yield good results.