Planning

WB16.1 Optimal Planning of a Multi-Station System with Sojourn Time Constraints

• Marcos J. Singer; Pontificia Universidad Catolica de Chile, Escuela de Admin., Vicuna Mackenna 4860 Macul, Santiago, , Chile; singer@faceapuc.cl
• Patricio Donoso; Pontificia Universidad Catolica de Chile, Escuela de Admin., Vicuna Mackenna 4860 Macul, Santiago, , Chile; pdonoso@faceapuc.cl
• Jose L. Noguer; Pontificia Universidad Catolica de Chile, Escuela de Admin., Vicuna Mackenna 4860 Macul, Santiago, , Chile; jnoguer@puc.cl

We study a dynamic production system with multiple products constrained by maximum and minimum sojourn times, flow balance equations and resources availability. We decompose the problem into single product serial systems and propose a dynamic programming algorithm of linear complexity. We show a real world application.

WB16.2 A Study of Dynamic Parking Facility Location when Demand is Time Dependent

• Wann-Ming Wey; Chaoyang University of Technology, Architecture & Urban Design, 168 Gifeng E. Rd., Wufeng, Taichung County, 413 , Taiwan, ROC; wmwey@mail.cyut.edu.tw
• Ching-Teng Liao; Chaoyang University of Technology, Architecture & Urban Design, 168 Gifeng E. Rd., Wufeng, Taichung County, 413 , Taiwan, ROC; b631120@seed.net.tw

A model of dynamic parking facility location is proposed and a progressive p-median problem of parking facility allocations is considered. The problem is formulated and a standard code AMPL (a modeling language for mathematical programming) is adopted to solve our proposed non-linear mathematical programming model.

WB16.3 A Production Planning Model based on an Activity-Based Costing System in an Automobile Parts Manufacturing Shop

• Soonil Kwon; POSTECH, San 31, Hyo-ja, Nam-Gu, Pohang, KyungBuk, 790-784 , Korea; sihm@chollian.net
• Yushin Hong; POSTECH, San 31, Hyo-ja, Nam-Gu, Pohang, KyungBuk, 790-784 , Korea; yhong@postech.ac.kr

A conventional costing system cannot incorporate setup costs appropriately in a production planning model. To overcome this, a production planning model based on ABC system is introduced and implemented in an automobile part manufacturing shop. We present the method of determining whether the parts should be manufactured in-house or out-sourced.

WB16.4 A Multi-Resource Scheduler for Planning & Replanning

• Abha Moitra; GE CRD, 2 Metcalf St., Westwood, MA 02090; abha.moitra@crd.ge.com

We present a MIP system for multi-resource scheduling that efficiently finds optimal solutions in tight scenarios. No apriori time granularity is assumed, jobs can require multiple resources, temporal relationships among jobs are permitted and resources have flexible shift structures. The system handles long running situations by allowing partial freezing of solution and replanning.