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INFORMS Nashville – 2016
502
WE59
Cumberland 1- Omni
Supply Chain Networks Design under Uncertainty
Sponsored: TSL, Facility Logistics
Sponsored Session
Chair: Nima Sadghiani, University of Michigan, Ann Arbor, MI, 12121,
United States,
nsalehi@umich.edu1 - Rolling Stock Maintenance Location Routing: Stochastic And
Robust Programming Formulations
Denise Désirée Tönissen, Eindhoven University of Technology,
Eindhoven, Netherlands,
D.D.Tonissen@tue.nl,Zuo-Jun Max
Shen, Joachim Jacob Arts
The maintenance location routing problem for train units is a NP-hard problem,
where we locate maintenance facilities, while also taking the maintenance
routing into account. Facility location is a long term strategic decision, but the
optimal facility locations depend on line planning and rolling stock schedules.
Since these change on a regular basis, our objective is to minimize the costs under
different discrete line planning and rolling stock schedule scenarios. We give
robust and stochastic formulations, provide algorithms to solve the problems and
perform numerical tests.
2 - Global Sourcing Under Correlated Uncertainties:
A Scenario-based Stochastic Programming Approach
Nima Salehi Sadghiani, University of Michigan, 3545 GreenBrier
Blvd,, Apt. 39A, Ann Arbor, MI, 48105, United States,
nsalehi@umich.edu,Mark Stephen Daskin, Don Zhang,
Mark Everson, Michael Sanders
Managing uncertainty is one of the challenging issues in supply chains. Using
only the expected value of the uncertain parameters for sourcing decisions in a
deterministic model can be risky due to the uncertainties that threaten both the
optimality and feasibility of the decision variables. Most previous studies on
supply chain network design assume that uncertainties are independent. In this
study, we address the need for an effective tool to incorporate potential
uncertainties associated with the model parameters and their correlation into
sourcing decisions.
WE60
Cumberland 2- Omni
Collaborative Logistics
Sponsored: TSL, Freight Transportation & Logistics
Sponsored Session
Chair: Brett Shields, UTSI, 411 B.H. Goethert Parkway, Tullahoma, TN,
1, United States,
bshields@utsi.edu1 - A Classification For Collaborative Logistics State Of The Art
Analysis
Andrea Rusich, Univeristy of Trieste,
Andrea.Rusich@phd.units.itScientific literature on collaborative logistics still misses a harmonized approach to
analyse its management implications. This paper aims to fill this gap by
introducing a classification canvas based on four perspectives: decision-makers,
form of collaboration, ICT and decision technology enablers, operations
management. The proposed analysis enhances the understanding of existing
collaborative logistics approaches and identifies further research steps. In addition,
an application example to the Physical Internet shows how the classification
could support the study of emerging collaborative logistics frameworks.
2 - Vehicle Routing Problem In Collaborative Environments:
Introducing An Exchange Mechanism For Orders.
Vincent Karels, TUE,
v.c.g.karels@tue.nlConsidering the distribution of orders, we introduce a system that exchanges
orders in such a way that cooperating distribution companies maintain their
competitiveness and autonomy while also decreasing their costs. First an
instrument is formulated which determines the marginal costs of any order
within the vehicle routing problem, while retaining that the calculations remain
computationally tractable. Subsequently an auctioning mechanism utilizing this
instrument is introduced, and the measure to which this mechanism evolves to
the best allocation of orders (the social optimum) is evaluated.
3 - Fair Sharing Approach For Network-wide Adoption Of
Collaborative Container Logistics
Rob A Zuidwijk, Professor of Ports in Global Networks, Erasmus
University Rotterdam, P.O. Box 1738, Rotterdam, 3000 DR,
Netherlands,
rzuidwijk@rsm.nl,Irina Romochkina,
Peter van Baalen
This paper draws from cooperative game theory while studying fair sharing
schemes and is inspired by actual issues in the adoption of Inter-Organizational
Systems (IOS) in container logistics in a sea port environment. We demonstrate
(1) the influence that network effect, as experienced in business network
communication structure and propensity for coordination between players, has
on the chances of an IOS to be fully adopted by a business network under fair
sharing conditions, and (2) that a fair sharing scheme has the potential to
eliminate two types of conflicts related to uneven benefits distribution and
through this enhance IOS adoption under certain conditions.”
4 - A Stochastic Make Or Buy Model Considering Additive
Manufacturing In Supply Chain
Brett Shields, University of Tennessee Knoxville, 411 B.H.
Goethert Parkway, Tullahoma, TN, United States,
bshields@utsi.edu,Javad Seif, Andrew Yu
In this project a two-stage stochastic program is presented in a make or buy
setting, considering the supply of parts produced by additive manufacturing. This
model generalizes a number of works in the literature and provides a framework
for implementing additive manufacturing in supply chain during times of
uncertainty.
WE61
Cumberland 3- Omni
Facility Location
Contributed Session
Chair: Zhaomiao Guo, Universtiy of California, Davis, 609 Anderson
Road,, Apt. 264, Davis, CA, 95616, United States,
zmguo@ucdavis.edu1 - Service Network Design With Equilibrium Constraints Based On
General M/g/1 Waiting Time
Mahdi Hamzeei, Post Doctoral Fellow, University of Maryland,
Baltimore, 685 West Baltimore Street, MSTF 7-00D, Baltimore,
MD, 21201, United States,
hamzeei.m@gmail.com,Amir Ahmadi Javid
We consider the service network design in which an operator determines some
facilities and their size to open. The customers then choose facilities to send their
demand such that their time is minimized. Customers’ time consists of a travel
and a waiting time. Assuming M/G/1 waiting time in each facility, using
conjugate duality and decomposition approaches, we propose and efficient
method to solve this problem. This structure was motivated by several
applications such as preventive healthcare and disaster management. We
conclude by presenting preliminary numerical results.
2 - Service Level Restrictions In Location Problems With
Disproportionate Assignment Costs
Jeremy W North, Murray State University, 9400 Wickliffe Rd.,
Wickliffe, KY, 42087, United States,
jnorth@murraystate.edu,
Robert M Nauss
A common assumption in facility location modeling is that customer assignment
cost is proportional to distance. In this work, we drop this assumption and
analyze the subsequent effect on service level when weighted average distance is
minimized. Computational experiments contrast the p-median with an
augmented version enforcing higher overall service levels. We show that our
modeling approach is more economical than implementing a closest assignment
restriction. Additionally, a Greedy Random Adaptive Search Procedures (GRASP)
algorithm is applied to solve larger problem instances.
3 - A Continuum Approximation Method For Reliable Facility
Location Design With Imperfect Information
Hongqiang Fan, University of South Florida, Tampa, FL,
United States,
hongqiangfan@mail.usf.edu, Xiaopeng Li, Lifen Yun
In this paper, we propose a continuum approximation method to solve the
reliable facility location design problem with imperfect information. Then a
discrete algorithm is proposed to obtain discrete facility locations. The results of
case studies indicate that this model also can get the near-optimal solution
compared with the discrete model and has a robust performance.
4 - Facility Location In A Competitive Market: Incorporating Network
Congestion Effects
Zhaomiao Guo, Universtiy of California, Davis, 609 Anderson
Road,, Apt. 264, Davis, CA, 95616, United States,
zmguo@ucdavis.edu, Yueyue Fan
We assess facility networks in a competitive market, where the infrastructure
system is shaped by collective actions of multiple decision entities from both
supply and demand sides. A network-based multi-agent optimization modeling
framework is developed to reflect “selfish” behaviors of individual service
investors and users and to simultaneously capture the interactions among all over
a network structure. To overcome computational difficulty imposed by non-
convexity of the problem, we rely on recent theoretical development on
variational convergence of bivariate functions to design a solution algorithm with
analysis on its convergence properties.
WE59