2013 Session: 408

• Two-Stage Model for Facility Layout Problem in Irregular Logistics Park with Obstacles
  Abstract: The layout problem in a logistics park, which involves the optimal placement of a set of functionary zones with known dimension, differs from the traditional facility layout problem because obstacles, such as railway or highway, may cross the logistics park. In addition, logistics parks commonly have irregular, instead of rectangular, shape. These additional features require explicit modeling. We present a two-stage model to find efficiently competitive solutions to this layout problem. The first stage involves allocating the functionary zones into sections caused by obstacles using clustering technique. The second stage involves the determination of the layout of the functionary zones in the respective sections by combining slicing structure and irregular objects. In addition, heuristic approaches based on genetic algorithm and scatter search are proposed because this layout problem is NP-complete. Numerical examples show the effectiveness of the proposed model.
  Authors: Chen, Yanru; Jiang, Yangsheng; Long, Xiaoqiang; Hu, Lu
  Authors: Chen, Yanru; Jiang, Yangsheng; Long, Xiaoqiang; Hu, Lu
  Year: 2013
  Document Type: Paper
  Subject: Freight Transportation; Terminals and Facilities
  Session: 408
  Paper Number: 13-2504
• Evaluating Location and Tracking Systems for Security Improvement of Transshipment Processes at Container Terminals
  Abstract: To support regulators and strengthen supply chain security, terminal operators are looking for suitable location and tracking systems to improve operational efficiency and security standards. However, the decision of system investment is a challenging task because decision makers not only have to evaluate different kinds of partially contradictory and complex demands and criteria, but also need to consider the strategies and resources of their organizations. To overcome the difficulties of choosing the right solution for container transshipment operations, this study proposes the influence diagram model for the evaluation of location and tracking systems at container terminals. The proposed model not only takes into account the objectives of implementation costs, time savings, and security standards, but also considers the risk attitude of decision maker, decision planning horizon, and uncertain variables affecting the system implementation. This influence diagram model is further transformed into a model of Bayesian networks for efficient probabilistic inferences. To demonstrate how the proposed decision model works, a case study of the Port of Yokohama was also investigated. A combination of location and tracking solutions including active electronic seal (e-seal) system, RFID truck control system, and differential global positioning system are considered as the decision alternatives. Findings of case study suggest the investment of e-seals system, which can provide competitive advantages of time efficiency and security improvement for the Port of Yokohama.
  Authors: Shen, Chien-wen
  Authors: Shen, Chien-wen
  Year: 2013
  Document Type: Paper
  Subject: Freight Transportation; Terminals and Facilities
  Session: 408
  Paper Number: 13-5012
• Evaluating Location and Tracking Systems for Security Improvement of Transshipment Processes at Container Terminals
  Authors: Shen, Chien-wen
  Authors: Shen, Chien-wen
  Year: 2013
  Document Type: Presentation; Poster
  Subject: Freight Transportation; Terminals and Facilities
  Session: 408
  Paper Number: 13-5012