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To equilibrate the physical material in the process of inventory and transportation in supply chain operation, and to make them optimize, a multi-objective optimization model is constructed by using fuzzy mathematics, in which transportation and inventory are considered together. Through analyzing, the results are shown that the total cost of transportation can be saved effectively and the multi-objective...
The urban transit routing problem (UTRP) is broadly discussed currently, searching for better models and algorithms to make our public transportation reasonable and efficient. In this paper, firstly, conducts a brief review of the UTRP research already done in the past decades. Then a multi-objective optimization model which consisted of the perspectives of both passengers and operators is promoted...
This paper focuses on the analysis of bus crew and vehicle scheduling under the management system commonly-seen in China. With considerations of management rules in practice and related regulations in China, this study proposes a bi-level multi-objective programming model for optimizing the crew and vehicle scheduling for the operation of public bus system. The developed model first estimates the...
The socialization of emergency rescue, diversity of emergency resource requirements, time variety of emergency demand and resource replenishment, raise new challenges to emergency logistics. The urgency of emergency logistics demands the highest possibility of resource supply to disaster point. Moreover, the cost of emergency logistics should be minimized in economic view. Through discretizing the...
Globalization has prompted manufacturing firms to come to terms with environmental legislation and regulations, resulting in the manufacturing industry realizing the importance of adopting environmental friendly supply chain management (SCM) practices. A growing number of companies have realized that attaining effective SCM is only one side of the coin. The other side is to make SCM environmentally...
Research regarding supply chain optimization has been performed for a long time. However, it's only in the last decade that the research community has started to investigate multi-objective optimization for supply chains. Supply chains are in general complex networks composed of autonomous entities whereby multiple performance measures in different levels, which in most cases are in conflict with...
The goal of emergency rescue is to reduce casualties and property losses caused by unexpected events. How to improve emergency response speed is one of the most difficult problems in the area of emergency logistics. Therefore, the study of the optimal path selection problem for transport vehicles to improve emergency response speed is full of practical significance. In this paper, a multi-objective...
On account of route optimization of bus dispatching, it is proposed to use genetic ant algorithm (GAA) for solution. A mathematic model for multi-objective bus route optimization and selection under limited conditions is developed, introducing the evolutionary process of genetic variation to improve the optimization of ant colony algorithm and also the optimal decision updating and identification...
To meet the demand of urban parking and decrease the parking cost, the study of a location model about the curb parking facilities and the off-street parking facilities by analyzing the matching relationship is necessary. It surely can improve the overall efficiency of urban dynamic and static traffic. Firstly, comparison of the off-street parking with the curb parking about characteristics of parking...
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