Medical Waste Collection Considering Transportation and Storage Risk
نویسندگان
چکیده
We consider a Periodic Load-dependent Capacitated Vehicle Routing Problem (PLCVRP) encountered by medical centers and medical waste collection companies for the design of a weekly inventory routing schedule to transport medical wastes to treatment sites. In addition to minimization of transportation risk, occupational risk related to temporary storage of hazardous wastes at the health-care centers is considered. The transport risk on each arc is dependent on the weight of hazardous medical waste on the vehicle when it traverses that arc. Our paper presents a new non-linear mixed-integer programming formulation for the problem accompanied by a novel decomposition based heuristic algorithm. Experimental results confirm the efficiency of our heuristic. We present a case study to illustrate solution characteristics obtained by our solution methodology. The case study is based on medical waste management in Dolj, Romania.
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