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4 results on '"Suthikarnnarunai, N."'

2. Cash Distribution Using Skip Concept for Heuristics Vehicle Routing Methodology.

Author

Suthikarnnarunai, N., Boonsam, P., Wattanalertrak, W., Engchuan, K., and Taprab, C.

Subjects
PAYMENT, VEHICLE routing problem, HEURISTIC algorithms, NEAREST neighbor analysis (Statistics), TRANSPORTATION
Abstract

This article presents new heuristics concept for solving Vehicle Routing Problem with Time Window. New concept, which is a skip concept, derives from a solution of the traditional sweep and nearest neighbor technique, which gives poor vehicle's utilization. Hence, skip - sweep algorithm and skip - nearest neighbor search focus on increasing the vehicle's utilization. The case study of cash distribution has been applied to proof efficiency of the skip concept. New concepts have been resulting in using the same amount of vehicle as the traditional one. The favorable result is the increasing of the vehicle's utilization. The decreasing of total travel time, which is an unexpected result, has found from the case study. It turns to be a favorable result since it associates to the variable cost of fuel. [ABSTRACT FROM AUTHOR]

Published
2013

3. A Sweep Algorithm for the Mix Fleet Vehicle Routing Problem.

Author

Suthikarnnarunai, N.

Subjects
VEHICLE routing problem, INTEGER programming, SENSITIVITY analysis, BUSES, SHUTTLE services
Abstract

This paper presents research on the Vehicle Routing Problem (VRP) using a sweep heuristic method with 2-opt exchange and traveling salesman tours and an integer programming model for split delivery VRP model to select the best route to pick up and delivery customers from/to desired destination and depot. The modeling language, AMPL with CPLEX is used to develop the model and implement the sweep heuristic. The research found that the integer programming model produced the optimal result for some cases and failed to produce the optimal result for some cases. However, the sweep heuristic gave good solutions for all cases within a small amount of computational time. The research also investigated sensitivity analysis with respect to the vehicle capacity. The results indicate a savings in number of vehicle used with a small increase in vehicle capacity. The case study of University of The Thai Chamber of Commerce (UTCC) which provides bus services to pick up and deliver staff from/to home and university is selected to present in this paper. [ABSTRACT FROM AUTHOR]

Published
2008

4. Automotive Supply Chain and Logistics Management.

Author

Suthikarnnarunai, N.

Subjects
SUPPLY chains, BUSINESS logistics, AUTOMOBILE industry, BEST practices
Abstract

Knowledgeable observers say that many, though not all, automotive companies are running their supply chain well. American and European automotive companies are losing their shares and profits whereas Japanese companies are increasing world market shares and gaining more profits. Therefore, the present is considered to be a transitional period for the automotive industry. The purpose of this article is to present the weak points of current systems in the automotive industry as a whole, and provide solutions and suggestions for the industry to become more profitable again. In addition, we will focus upon the unique supply chain and logistics concepts implemented by Japanese automobile companies that have allowed them to become successful, and a model of best practices for the industry. [ABSTRACT FROM AUTHOR]

Published
2008

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