Optimization Days 2017

HEC Montréal, May 8-10, 2017

1st Canadian Healthcare Optimization Workshop (CHOW)

HEC Montréal, May 10-11, 2017

 

JOPT2017

HEC Montréal, 8 — 11 May 2017

Schedule Authors My Schedule

MB5 Foresterie / Forestry

May 8, 2017 10:30 AM – 12:10 PM

Location: Nancy et Michel-Gaucher

4 Presentations

  • 10:30 AM - 10:55 AM

    Development of an economically sustainable and balanced tactical forest management plan: a case study in Quebec

    • Azadeh Mobtaker, presenter, École de technologie supérieure
    • Mustapha Ouhimmou, École de technologie supérieure
    • Mikael Rönnqvist, Université Laval
    • Marc Paquet, École de technologie supérieure

    We study the tactical forest management problem and aim to avoid “creaming” of the forest resources over long period. We propose a goal programming model and solve it for a Canadian case. Results show the proposed model outperforms conventional cost minimization strategy by ensuring a balanced use of wood supply over a longer period.

  • 10:55 AM - 11:20 AM

    Implementation of a logistical center: costs, benefits and deployment

    • François Sarrazin, presenter, Université Laval
    • Luc LeBel, Université Laval
    • Nadia Lehoux, École Polytechnique de Montréal

    The objective of this research project is to choose the optimal site for the establishment of a logistical center comprising a sort yard and transportation coordination in the Mauricie region of the province of Quebec, Canada. To achieve this, we are proposing a profit maximization model for a forest products supply chain which can include a yard specifically dedicated to sorting while making possible the combining of different deliveries to diminish empty transportation returns.

  • 11:20 AM - 11:45 AM

    Un nouveau modèle pour la planification forestière spatiale avec des contraintes d’adjacence

    • Chourouk Gharbi, presenter, Université Laval

    L’objet de la planification forestière spatiale consiste à décider le lieu et le moment de récolter le bois d’une manière qui permet de satisfaire la demande en bois en tenant en considération des aspects spatiaux et environnementaux (Rönnqvist et al. 2015). Les restrictions spatiales sont représentées dans la littérature par principalement deux approches soit l’URM (unit restriction model) et l’ARM (area restriction model). Il a été prouvé que l’approche ARM est plus complexe de point de vue modélisation, cependant elle fournit des résultats plus performants. Les chercheurs ont recours à plusieurs approches de résolutions telles que les méthodes exactes, les méta-heuristiques et la simulation. Cependant, il existe encore des défis de modélisation et de résolution des problèmes de la planification forestière spatiale (Rönnqvist et al. 2015). L’objectif de notre projet est de proposer une nouvelle méthodologie qui permettrait de formuler et de résoudre le problème de la planification forestière tactique en considérant des restrictions spatiales.

  • 11:45 AM - 12:10 PM

    Forest Biomass Value Chain Design- case study in Newfoundland

    • Foroogh Abasian, presenter, Candidate au doctorat

    We address the network design problem in the Canadian forest industry context to maximize its fiber value. Several assortments including sort yards and biorefineries have been introduced to the network to create higher value from existing supply. New assortments affects network flows and consequently all tactical decisions including harvesting, purchasing, transportation (direct or backhaul), sorting and operating. Hence, Our goal is to design a forest network taking into account tactical decisions in a collaborative environment. We develop a mixed integer linear programming for defined problem. A real case study of Newfoundland forest industry validates the developed model. The result of optimization shows supply management, value creation and collaboration create the improvement up to 29% for the entire network.

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