Séance MA9 - Transport / Transportation
Jour lundi, le 04 mai 2009 Salle Banque Scotia Président Mervat Chouman
Présentations
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10h30- 10h55 |
Offshore Anchor Handling Operations: A Simulation Analysis of Different Vessel Fleet Configurations |
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Aliaksandr Shyshou, Molde University College, Economics, Informatics and Social Sciences, Postbox 2110, Molde, Norway, 6402 Irina Gribkovskaia, Molde University College, Economics, Informatics and Social Sciences, Postbox 2110, Molde, Norway, 6402 Jaume Barceló, Universitat Politècnica de Catalunya, Statistics and Operations Research, Campus Nord, Edifici C5, Office 215, Jordi Girona Salgado 1-3,, Barcelon, Spain, 08034 We present a fleet sizing problem arising in anchor handling operations related to movement of offshore mobile units. The operations are performed by dedicated vessels, which can be hired either on the long-term or spot basis. We propose a simulation-based approach to decide the cost-optimal fleet of vessels on the long-term hire to cover future operations. |
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10h55- 11h20 |
A Sequential Stochastic Security System Design Problem for Aviation Security |
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Sheldon H. Jacobson, University of Illinois, 201 N. Goodwin Avenue (MC258), Urbana, Illinois, USA, 61801-2302 Alex Nikolaev, University of Illinois, Urbana, Illinois, USA, 61801 Laura A. McLay, Virginia Commonwealth University, Richmond, Virginia, USA The Sequential Stochastic Security Design Problem models passenger and carry-on baggage screening operations in aviation security systems. The objective is to maximize the total security of all passenger screening decisions, given passenger risk levels and security device parameters. An IP is formulated to solve the problem. Computational results are reported. |
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11h20- 11h45 |
Freight Service Network Design in Rail Transportation |
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Endong Zhu, Université de Montréal, CIRRELT, C.P. 6128, Succ. Centre-ville, Montréal, Québec, Canada, H3C 3J7 Teodor Gabriel Crainic, Université du Québec à Montréal, C.P. 8888, Succ. Centre-ville, Montréal, Québec, Canada, H3C 3P8 Michel Gendreau, Université de Montréal, Informatique et recherche opérationnelle, Succ. Centre-ville, Montréal, Québec, Canada, H3C 3J7 Freight service network design aims to build a good operating plan for rails. We integrate the most important rail operations (service selection, traffic distribution, blocking policy, and train make-up policy) into one compound model, and analyze the trade-offs among them in a time-dependent manner. Both modeling idea and solution method will be presented. |
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11h45- 12h10 |
Managing Locomotives in Freight Rail Transportation Systems |
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Mervat Chouman, Université du Québec à Montréal, CIRRELT, Montréal, Québec, Canada Teodor Gabriel Crainic, Université du Québec à Montréal, C.P. 8888, Succ. Centre-ville, Montréal, Québec, Canada, H3C 3P8 The problem concerns the planning of locomotive fleet management for a freight rail carrier. It consists in assigning a set of heterogeneous locomotives to scheduled trains, such that all trains have the required power during their entire journey, while a number of restrictions are satisfied. We present an integer formulation and propose a heuristic approach to obtain high-quality solutions. |