Guide Lean Supply Chain: Collected Practices & Cases (Insights on Implementation)
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We consider two quantity discounts with freight environment. The objective is to minimize the integrated total cost incurred by the supplier and buyer. Freight costs are the function of shipping weight and distance with two transportation modes: truckload TL and less-than-truckload LTL shipments.
We develop two optimal models considering all-units quantity discount and incremental quantity discount. The study shows how freight costs and the two discount policies affect the total cost of the supplier and the buyer. Numerical examples are used to illustrate of two models. Keywords : Integrated inventory; TL and LTL; stochastic demand; all-units quantity and incremental quantity discounts.
This paper proposes to simplify complex scenarios and find near-optimal solutions by applying a heuristic approach for solving the capacitated vehicle routing problem with a homogeneous fleet using fuzzy c-means as the clustering technique. It also uses a memetic algorithm to determine the number of clusters and an improved fuzzy c-means algorithm for allocating customers to routes. When benchmarked with other methods and compared with 50 known instances from the literature, it indicated an error average of less than 3 percent.
These error results presented a lognormal distribution. Due to the nature of the errors studied, a tobit regression has been applied to predict the average percent error in terms of the characteristics of the demand and the distance of each customer. Results also suggest that kurtosis and skewness of the distances among all customers, capacity of the vehicles, and standard deviation of the demand could be used to predict the average percent error, providing a decision-making tool to apply this algorithm in the future for different instances.
When compared with other fuzzy clustering techniques, the use of fuzzy c-means reinforced the idea that distant customers should be almost always served by a single vehicle, even if it is not fully loaded. Keywords : capacitated vehicle routing problem; cluster-first route-second heuristic; fuzzy logic; homogeneous fleet; tobit regression. An activity-based model is developed and applied to a base case, that best represents the average purchasing process in the apparel industry, considering both the retailers and the customers perspectives.
Sensitivity analyses are performed as well.
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- Lean Supply Chain: Collected Practices and Cases?
For both configurations, the most critical parameter is the distance between the customer house and the store, whereas the customer profile and the location of the customer house urban vs extra-urban area are additional significant factors for MSiS. The results of this study are also compared to previous research in the field of e-commerce environmental sustainability. Keywords : omni-channel; environmental sustainability; logistics; click and collect; mobile shopping in store. The BBN model is used to gauge business, economic and external risks and evaluate its impact on gross turnover of the industry.
Empirical model draws a lot of implications to streamline the risk effects in the industry, but it clearly shows that the three factors business risks, economic risks and external risks are not entirely independent and are positively correlated with each other. Bayesian networks provide a very useful risk assessment tool that takes into account the advantages of both quantitative and qualitative risk assessment methods. This is a novel, empirical effort to provide a generalized model to integrate all risks domestic, global, economic, legal relevant to the automotive industry.
Despite a plethora of research, due to the combinatorial complexity, the literature to address the problem for large sized networks is scarce. To this end we first dissolve the bi-level problem to a single-level problem by relaxing it to a System-Optimal traffic flow. The proposed methodology is applied to three examples, a pedagogical network, Sioux Falls and a real-size network representing the City of Winnipeg, Canada.
Numerical tests on the network of Winnipeg at various budget levels demonstrate promising results. The distribution network contains a large number of products, and considers 20 periods of planning horizon. Product deliveries are made using two shipment methods, direct shipment from internal warehouse and through shared external warehouse, to two groups of customers, domestic and overseas, with deterministic demands. The objective is to determine an optimal location of a new external warehouse, its capacity, and product-facility-market allocation so as to minimize the total logistics cost, including transportation and warehousing costs.
A real-world large-scale problem from industry is solved optimally using a mixed integer linear programming model. A sensitivity analysis on three key parameters, product demand, unit transportation cost, and unit warehousing cost, is conducted to find the final solution. Keywords : Facility location; capacity; product allocation; distribution network; 4-echelon supply chain; multiple products; multiple periods; multi-modal; multiple storage types; case study.
Data is collected based on a survey questionnaire directed to observations within the selected firms. The operating costs average is used as an indicator of the logistics performance efficiency since it measures the efficiency inversely. Our findings reveal significant variations in managers perception of logistics management concept among the selected firms.
The findings also reveal significant differences among the selected Egyptian corporations according to the availability degree of logistics management requirements and practices. At the same time, the study partially supports the significant impact of logistics management requirements on logistics performance efficiency where logistics management practices play full and partial mediating roles in this relationship. This paper proposes a mathematical model to evaluate fuel consumption for a routing plan in last mile delivery or pick-up for non-collaborative or traditional and collaborative strategy.
Comparing both the scenario for last-mile delivery and pick-up, the latter strategy outperforms the former with Results are also analyzed in terms of total carbon emission caused by vehicles of individual companies. Sharing of surplus among the companies due to collaborative strategy is also presented in this study. Furthermore, the paper assesses the implementation of an electric fleet of vehicles in the context of collaborative urban transportation of goods and determines corresponding energy consumption. The results exhibit an improvement of By a review of prior art and expert panel discussions, certain issues were identified for the facilitation of e-Applications in the sugar production process.
The relevance of the issues identified was checked by conducting a field survey. A total of 30 sugar mills in the states of Uttar Pradesh and Uttarakhand, India were targeted, and were collected from the mill managers to identify issues at procurement and sugar production stages. For checking the scope of IT applications, a total of respondents were collected from mill managers and 60 employees of IT companies who provide supply chain IT solutions. On the basis of the findings, the paper proposes certain IT solutions for solving the identified issues which will help in improving sugar cane processing at the sugar production level.
Under the challenges like constantly increasing customers expectations, fierce competition, high product variety, shrunk product life cycles etc. Thus, this study aims to explore the reverse logistics operations of companies manufacturing the medicines in India. Redistribute as it is if non-defective, customer satisfaction, lesser predictability about returning medicines and helpful in image building are the most cited practice, driver, barriers and perceived performance indicator respectively.
Besides enriching the body of knowledge, the findings of this study are expected to help the governments, regulatory bodies as well as pharmaceutical companies to ensure sustainable development whereby the manufacturers receive their fair returns through ethical, environmentally conscious and socially accountable means. Keywords : Logistics; Reverse logistics; Pharmaceutical supply chains; Pharmaceutical companies; Reverse logistics in pharmaceutical supply chains.
They need customized decision support systems to support these decisions. It is necessary to develop executive dashboards specific to them although very few of them possess such dashboards. Hence, it is a necessity to determine the criteria needed to design such dashboards for an effective decision making.
The purpose of this study is to determine the criteria needed to design executive dashboards for port executives so that they can make effective decisions. Within this scope, a target group study comprising of field experts was conducted, and the data obtained were analyzed with the Delphi technique.
Consequently, 61 criteria in total were determined in four different criterion groups. This paper aims to raise awareness among supply chain partners regarding the importance of information sharing by assessing the value of upstream supplier lead time and downstream customer demand information sharing in a divergent supply chain. Through a simulation study, this work investigates the impact of information sharing on the logistic cost of each link horizontally and vertically and for each cost component for three different structures of the distribution network.
The results show that the warehouse benefits the most from information sharing and should implement revenue-sharing contracts to motivate its partners to share their information. In addition, the gains are not sensitive to the structure of the distribution network, and the retailers gains are proportional to their level of demand and unit holding and penalty costs. Moreover, the holding and penalty costs for the warehouse are sensitive to the sharing of supplier lead time information when only holding costs are sensitive to the sharing of customer demand information at the warehouse and retailers.
Keywords : Information sharing; divergent supply chain; vertical impact; horizontal impact; lead time; demand. In this article we present a classification of carriers collaborative routing problems according to type of planning centralized or decentralized and a review of the most popular routing problems related to city logistics, i. Based on an existing taxonomy we review those problems in term of variants, objectives and resolution methods. The aim of this paper is to provide a comprehensive and relevant characterization of carriers collaboration problems in urban context.
Keywords : Carrier collaboration; collaboration problems; routing problems; multi trips; multi depots; Simultaneous pickup and delivery; loading constraints; classification; literature review; urban. While such studies have focused on large infrastructures such as ports and airports, few have examined logistic infrastructures.
In this paper we calculate the economic impact of Zaragoza Logistics Platform PLAZA for and determine the effect of the world economic crisis on this infrastructure. We study the different levels of economic impact direct, indirect and induced impacts and these are measured in terms of employment, wages and gross added value GVA.
The results show that the infrastructure improved its business performance in , with higher levels of the main variables studied, in comparison with those obtained before the crisis in In a chemical company, we considered the dependent processes of truck arrivals at the main gate and loading operations at stations inside the site. To achieve a controllable situation, we developed an online IT application where at gate and station real time data is collected.zyparuzijogi.tk
The Simple Guide to Supply Chain Management – SCM 101
Based on the data, we employed a site entry control ensuring smooth station operations. Logistics performance indicators such as the average and maximum truck number at the station and site sojourn times of trucks were reduced significantly. Keywords : logistical systems optimisation; logistics information systems; collaboration tools; information sharing; on-site logistics.
The objective is to identify the parameters for logistical movement, which preserve environmental safety and obey the rules of law. The proposed framework can guide the movement and maintain the quality of the services. The theme is relevant for socio-environmental security and risk prevention in the logistics process.
Thus, to obtain the information was used an exploratory research with qualitative approach obtained by means of secondary data as books, decrees, ordinances, and legislation. The research identified points relevant to the quality of the services in road transport of explosive material. Keywords : Criteria; Explosives; Handling; Quality. This paper introduces a framework which deals with the design of a transportation network for pharmaceutical supply chains. It consists of three steps: i identifying the configuration of the current distribution network, ii designing an optimal distribution network while determining the appropriate location-allocation decisions, and iii choosing the most appropriate transportation network through the application of the appropriate multi-criteria decision analysis method MCDA.
The proposed framework is illustrated in redesigning a transportation network for a pharmaceutical supply chain. Keywords : Pharmaceutical products supply chain; Supply chain Transportation network; Location-allocation; Multi-criteria Decision Analysis. A revenue sharing contract that sharing the revenue between the distribution systems members at sale point as coefficient of product price which integrated Semi-TDPD Semi Third Degree Price Discrimination into the model.
Semi-TDPD strategy makes it possible to exploit the opportunity of customers behavior that they willing to pay different price to owning the product and bargaining for lower price, by adopting price discrimination strategy. To illustrate the proposed approach, we present some numerical examples. Through these examples we investigate the impact Semi-TDPD on decision variables as well as the well performance of proposed revenue sharing coordination.
A rough interval is based on approximation space and hence the solution of the proposed model obtained with the help of approximation theory.