2016 INFORMS Annual Meeting Program

TB71

INFORMS Nashville – 2016

TB71 Electric- Omni Vehicle Routing III Contributed Session

3 - Management Of Supply Chains With Perishable Assets Maxim A. Dulebenets, Assistant Professor, Florida State University, Tallahassee, FL, United States, mdlbnets@memphis.edu, Mihalis Golias, Mehdi Amini Nowadays many of supply chains deal with design, production, distribution, and retailing of perishable assets. Perishable assets may deteriorate due to certain external factors, such as time, temperature, humidity, pressure, power, air composition, etc. This presentation will focus on the key features of supply chains with perishable assets, attributes of perishable assets, sustainability of supply chains with perishable assets, best practices revealed in the relevant scientific literature and applied in the industry, and outline some critical issues and potential directions for the future research. 4 - Designing Power Supply Chains- Understanding India’s Electrification Underachievement And Disparity Prateek Raj, PhD Student, University College London, Gower Street, UCL School of Management, London, WC1E 6BT, United Kingdom, p.raj.12@ucl.ac.uk, Achal Bassamboo Power supply has a complex supply chain. It involves coordination between several players for both everyday operations and for long term planning. We consider different ways of organizing decision making in power supply chains, and study the varying outcomes in capacity and efficiency of power supply. Using this framework, we study why India has lagged behind in rural electrification compared to other large countries. We also explore why there is high heterogeneity in rural electrification within India. TB73 Legends A- Omni Operations Management II Contributed Session 1 - Queue Joining Decisions When There Is A Prerequisite Condition For Getting Service Mona Imanpoor Yourdshahy, PhD Student, University of British Columbia, 2053 Main Mall, Vancouver, BC, V6T 1Z2, Canada, mona.imanpoor@sauder.ubc.ca, Woonghee Tim Huh, Steven Shechter We consider an M/M/1 queueing system in which a customer requires some prerequisite condition to be met prior to receiving service. We investigate whether an individual arriving to this system should join the queue at that time, or wait to join at some future time. We formulate this problem as a Markov decision process and show how the structure of the optimal policy depends on in-queue and out- of-queue waiting costs, the arrival and service rates, as well as the time until the prerequisite condition is satisfied. 2 - Codified Knowledge Sharing And Operational Failure In Healthcare: Evidence From NHS Hospitals’ Risk Management Documents Focusing on codified knowledge sharing among healthcare personnel in the form of written documents (e.g. risk management policies, procedures, strategies, etc.), we examined the role of the nature and content of codified knowledge on risk management performance. We used a unique dataset from NHS acute trusts in England and employed text-mining techniques to investigate the impact of documents on risk management. 3 - Study On The Scheduled Bus-bridging Service And Emergent Strategy Of Bus Fare Discount Under Operation Disruptions Of The Metro System Li_bing Wan, Huazhong University of Science&Technology, Wuhan, China, wanlibingltt@163.com The rail transit has many advantages, at the same time, it also often fails and operation disruptions . This thesis studies the bus-bridging evacuation service for complete passengers’ travel and the emergent strategy of bus fare discount under operation disruptions of the rail transit. Firstly, we systematically summarize and analyze operation disruptions of three cities . Secondly,the conventional metro- bus evacuation equilibrium model is established . Thirdly, the thesis deeply researches the effect of bus fare discount to the original equilibrium and determines optimal bus fare discount strategies for two different targets. Bilal Gokpinar, University College London, London, United Kingdom, b.gokpinar@ucl.ac.uk, Mecit Can Emre Simsekler

Chair: Mohamed Mahmoud Saleh Abdulkader, PhD Candidate, University of Manitoba, 708-1833 Pembina Highway, Winnipeg, MB, R3T 3X8, Canada, abdulka3@myumanitoba.ca 1 - Multi-depot Two Echelon Pollution Minimizing Routing Problem With Heterogeneous Vehicles Surendra reddy Kancharla, PhD Student, Indian Institute of Technology Madras, Chennai, India, surendrareddy.kancharla@gmail.com, Gitakrishnan Ramadurai A new variant of VRP to find the heterogeneous fleet mix and routes at two levels by jointly minimizing the operational and pollution cost is proposed. Fuel consumption and the pollutants emitted are a function of load, speed, and acceleration characteristics. A mixed-integer program is formulated and an effective metaheuristic solution algorithm is presented. 2 - Heuristics For Online Orders Delivery Optimization Mohamed Mahmoud Saleh Abdulkader, PhD Candidate, University of Manitoba, 708-1833 Pembina Highway, Winnipeg, MB, R3T 3X8, Canada, abdulka3@myumanitoba.ca, Yuvraj Gajpal, Tarek ElMekkawy E-commerce became a global trend and its volume has been expanded remarkably. Consumers can order products to be delivered at their homes. These online ordered products are supplied from the retail stores available inventories. The retail stores require products from central warehouse as well. In this paper we consider the vehicle routing problem for the delivery of products ordered online and the delivery of products from central warehouse to retailers. We provide mathematical description and heuristics to solve the problem. Numerical experiment is performed on randomly generated problem instances to evaluate the heuristics performance. Chair: Prateek Raj, PhD Student, University College London, Gower Street, UCL School of Management, London, WC1E 6BT, United Kingdom, p.raj.12@ucl.ac.uk 1 - Financing Schemes For Upstream Suppliers Weixiang HUANG, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong, China, wxhuang4-c@my.cityu.edu.hk, Yanzhi LI, Qiaohai HU We consider four financing schemes for a supplier with limited capital: bank loans, purchase order financing (POF), retailer loans and advance payments. We model players’ interaction as Stackelberg games. We show that: (1) The bank loan helps the supplier to overcome the capital constraint and produce its desired quantity. (2) While the production quantity in retailer loans or advance payments can be either lower or higher, the one under POF is always higher than the supplier’s desired quantity. (3) No scheme is dominating in terms of players’ own and chain’s sake. (4) Different from retailer loans and advance payments, POF allows each player to obtain profits larger than that under bank loans. 2 - Optimizing Joint Replenishment Problem For Non-instantaneous Deteriorating Items With Multiple Suppliers Offering Quantity Discounts Xueyi Ai, Huazhong University of Science and Technology, Luoyu Road, NO. 1037, Wuhan, China, Wuhan, 430074, China, aixueyi1030@gmail.com, Jinlong Zhang This paper deals with a new joint replenishment problem, in which a number of non-instantaneous deteriorating items are replenished from several suppliers under different quantity discounts schemes. We develop a model integrated with a supplier selection system and the joint replenishment programmes for non- instantaneous deteriorating items. An improved moth-flame optimization (IMFO) algorithm is proposed to solve this NP-hard problem so that the total cost is minimized. Numerical examples are shown to illustrate the performance of IMFO algorithm. Extensive experiments are performed to further investigate the effectiveness of the proposed algorithm. TB72 Bass- Omni Supply Chain Mgt X Contributed Session

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