WOOD-BASED PRODUCTS DISTRIBUTION PLANNING WITH WOOD RETURNS IN A IBERIAN COMPANY Report as inadecuate




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Abstract : This paper explores the possibility of combining inbound and outbound planning in a setting where third-party logistics providers have a lower bargain power than usual. This happens to be very often the case with companies manufacturing wood-based products for which there is a fragmented transportation market. Emphasis is put upon establishing the best group of clients of wood-based products to be served by the truck departing from the mill in a way that delivery costs are minimized and further finding the best supplier of wood to be visited by the same truck when it returns to the mill. This problem is similar to other distribution problems with backhauls, but in this fragmented market, route costs are mainly related to the distance of the farthest client visited. Moreover, depending on the duration of the route it may be not possible to perform a pickup of wood in a park to return to the mill. We propose an iterative solution procedure based on mathematical programming that is able to establish distribution plans for rather big instances. Results from its application to a real case of a wood-based panels company are presented. The company has to deal with 4 mills in the Iberian Peninsula, around 135 deliveries per day 330 ton of wood-based panel products and 80 possible suppliers. The proposed routes were compared against the current daily routes showing significant savings in the transportation costs followed by better utilization rates of the trucks- capacity.

Keywords : Vehicle routing mixed-integer programming forest operations logistics backhauling





Author: Pedro Amorim - Alexandra Marques - Bruno Oliveira -

Source: https://hal.archives-ouvertes.fr/



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