{"title":"Planning process for pooling integration in city logistics","authors":"P. D. Neghabadi, M. Espinouse, K. Samuel","doi":"10.1109/GOL.2018.8378097","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378097","url":null,"abstract":"City logistics comprises all freight transportation and distribution activities in urban areas and aims to raise the prosperity of a city while mitigating the negative externalities. Hence, resources scarcity and the need for large investments on initiatives implementation have driven researchers toward collaboration as a promising solution. In conjunction with this, pooling has been emerged as a systematic collaborative solution which is defined as the mutual and contemporary use of resources while all involved stakeholders have direct influence on decision making during the whole process. To this end, a comprehensive approach is required to explain how pooling is achievable in urban area. For this reason, this article focuses on the development of a general framework to discuss required steps to integrate pooling into the city logistics system. This framework includes two main parts: the first part contributes to diagnose the current status of the system while the second part discusses organizational planning steps for the three strategic, tactical and operational level. Furthermore, in the first part of the framework we propose a new concept, Typology of Flow (ToF), which is presented to study the main elements of the city logistics system and consequently, the urban flows with more attention into details. The information provided by this concept will help to choose the most compatible solutions for pooling integration in city logistics.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120974916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Genetic algorithm for large dynamic vehicle routing problem on GPU","authors":"A. Benaini, Achraf Berrajaa","doi":"10.1109/GOL.2018.8378082","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378082","url":null,"abstract":"Vehicle Routing Problems (VRPs) are fundamental optimization problems of distribution logistics and transportation systems. In the real-world, VPRs are dynamic in the sense that new customer requests continuously arrive over time, after a number of vehicles have already started their tours. These new requests must be incorporated into already planned routes. Dynamic VRPs require making decisions as fast as possible. This needs solution methods with high computational efficiency especially for large size problems. The aim of this paper is to attempt to achieve this objective. So, we design a new genetic algorithm for the Dynamic VRP and we implement it on Graphics Processing Units (GPU). The proposed approach is based on a simple method that inserts new requests in already planned routes then it optimizes the resulting solution via genetic operators that we introduced. We evaluated its effectiveness on some published benchmarks and on our own large instances (up to 3000 nodes) and we compared it to other recent works on Dynamic VRPs.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"48 16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130612814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Liner shipping routing, fleet sizing and speed optimization with application to Asia — Northern Europe-trade","authors":"Ali Cheaitou, R. Larbi, Sadeque Hamdan","doi":"10.1109/GOL.2018.8378071","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378071","url":null,"abstract":"One of the key players in world trade that facilitates global economic growth in general and the prosperity of international shipping in particular is maritime transportation. This paper examines a tactical aspect of maritime transportation that consists of containership routing and speed optimization for maritime liner services, in which goods are transported between a set of predetermined ports. We present an integer linear programming model for the containership routing and fleet sizing problem, in which the sailing speed is constant. We present also a simple heuristic for speed optimization. Our objective is to find the best sequence of ports to visit, the optimal sailing speed and the optimal number of vessels to deploy in the service while minimizing liner service bunker fuel cost and the vessel fixed costs. We present an application on French Asia Line 2 operated by CMA-CGM between Asia and Northern Europe to exhibit the effectiveness of the model. We provide a study on the effect of some of the main model parameters, such as bunker fuel price, on the optimal solution. The numerical results confirm the relevance of the used methodology.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127741930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Logistics services: The state of play of the Moroccan context","authors":"Latifa Fadile, Mohamed El Oumami, Z. Beidouri","doi":"10.1109/GOL.2018.8378075","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378075","url":null,"abstract":"Global trends in corporate governance, under the increasingly fierce pressure of competition, are increasingly endorsing the focus on core business and the more or less total pruning of trades that do not present competitive advantages. These include Logistics Services (LSs), which by their universal and standard nature have seen the emergence of specialists in this field, which by the volume effect are able to professionalize and control costs. Cost-driven companies then prefer to buy these services than to produce them in-house, but considering the size of these operations, their repetitive nature and their importance in the company's fundamental processes (Procurement, Storage, Production, Distribution, etc.) can no longer be considered as simple transactions to be purchased from a Logistics Services Provider (LSP). This article is particularly interested in LSs and associated terms, highlights the different phases of the purchasing process of these services and finally focuses on the situation of these latter in Morocco.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"55 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122197603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lean maintenance logistics management: The key to green and sustainable performance","authors":"S. Hammadi, Brahim Herrou","doi":"10.1109/GOL.2018.8378090","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378090","url":null,"abstract":"In a competitive industrial environment the most significant goal of almost all production systems is to reach optimal performance at the lowest costs. Being aware that the production system's availability is the key to do that, however many of them miss the availability road ignoring which is the right maintenance approach and responsible part for maintenance problems and interactions management within the 21st century circumstances. In this paper we define the main leading part as an interactive function “maintenance logistics” that takes into consideration the lean/green challenge to deal with the general industrial constraints and the main maintenance problems as presented in the 10 case studies analysis regarding the sustainable development framework. We also propose a sustainable model to manage maintenance interactions and solve the daily Human-Machine conflicts using participatory management and lean alternatives.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126497058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A new metaheuristic to solve a selective pickup and delivery problem","authors":"Z. Al-Chami, Hamza El Flity, H. Manier, M. Manier","doi":"10.1109/GOL.2018.8378089","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378089","url":null,"abstract":"The pickup and delivery problem (PDP) is a problem of optimization of vehicles routes, in order to satisfy the demands for carriage of goods between suppliers (pickup locations) and customers (delivery locations) using a set of vehicles. In this paper, we discuss a variant of PDP which is the SPDPTWPD (Selective PDP with Time Windows and Paired Demands). In this type of problems, a set of constraints must be respected. Those constraints are related to the capacity of the vehicles, the opening and closing times of each site (occurrence of time windows), the precedence (paired demands), and the choice of sites to be visited (selective aspect). We proposed a new metaheuristic to solve the SPDPTWPD, then we tested our method on benchmark instances, and its efficiency is shown by obtained results.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121721092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Niels Schmidtke, F. Behrendt, Lisa Thater, Sascha Meixner
{"title":"Technical potentials and challenges within internal logistics 4.0","authors":"Niels Schmidtke, F. Behrendt, Lisa Thater, Sascha Meixner","doi":"10.1109/GOL.2018.8378072","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378072","url":null,"abstract":"The industrial environment is characterized by a permanent change. As a result, the production requirements and their processes are constantly changing. The present paper takes up the latest transformation of industry through digitization and describes future “smart solutions” for new value-added concepts. The focus is on the impacts of changes on the logistics sector within Industrie 4.0 as well as on the technical potentials for internal logistics. In this context a new description approach is developed. The aim is to show a new approach that ranges from key elements of elementary logistics to the diverse new requirements of Logistics 4.0 Furthermore, the future role of humans in the industrial working environment is controversially discussed with proceeding autonomy and digitization.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127836415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jesús González-Feliu, Laura Palacios-Arguello, C. Suárez-Núñez
{"title":"The relations between freight trip generation and gravity accessibility: An exploratory analysis","authors":"Jesús González-Feliu, Laura Palacios-Arguello, C. Suárez-Núñez","doi":"10.1109/GOL.2018.8378094","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378094","url":null,"abstract":"This paper proposes an assessment of the relationships between freight trip generation (FTG) rates and accessibility. First, the paper introduces the context and motivates the proposed framework. Second, the framework is presented, which combines an FTG model, two accessibility indicators and a linear regression to relate them. The FTG model is presented and calibrated on the basis of surveyed data. The two accessibility indicators proposed here follow a potential and an exponential mathematical relationship, respectively. Third, the framework is applied to the urban area of Lyon, were no surveys are available. The FTG rates are estimated and the accessibility indexes calculated, then both descriptive statistics and linear regression analyses are performed. The potential accessibility index seems to have a better correlation to FTG and could be a good decision support indicator. This work, which remains exploratory, finishes by proposing practical implications and further development areas.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115387615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Hind, Amina El Omri, N. Abghour, K. Moussaid, M. Rida
{"title":"Dynamic airspace configuration: Review and open research issues","authors":"H. Hind, Amina El Omri, N. Abghour, K. Moussaid, M. Rida","doi":"10.1109/GOL.2018.8378093","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378093","url":null,"abstract":"With the continuing increase in air traffic, computation of best possible air paths and an optimal execution of the network system, is becoming a challenging research problem. Nowadays, several projects are launched, aimed at modernizing the global air transportation system. This study aims to survey a new concept called Dynamic airspace configuration (DAC) that tried dynamically to resolve the airspace sectorization problems by reducing the airspace congestion and the side effect of the atmospheric phenomena. The DAC is an encouraging concept proposed to convert airspace sectorization from the structured, rigid and static airspace to a dynamic one capable of accommodating dynamically changing traffic demand. The DAC has three main objectives to minimize: (a) the air traffic controllers' workload, (b) the workload difference between controllers, and (c) the changes between consecutive configurations.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123789143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The ABC-XYZ analysis modified for data with outliers","authors":"Z. Zenkova, T. Kabanova","doi":"10.1109/GOL.2018.8378073","DOIUrl":"https://doi.org/10.1109/GOL.2018.8378073","url":null,"abstract":"The ABC-XYZ analysis is widespread in modern business, especially in the inventory control, marketing and logistics. It is used for classification of the assortment depending on the revenue or profit of sales of the enterprise according to the ABC-part of the method and the amount of sales for the XYZ-part. The paper proposes a modification of the ABC-XYZ analytical technique for the case of the presence outliers in the data. The modification of the method allows identification of the outlier by means of the Grubbs' test. After excluding the outliers, the mean and the standard deviation of the truncated sample are used to re-estimate average sales, recalculate revenue and coefficient of variation, regroup and finally help decrease costs by means of better forecasting and changing strategies of inventory management, e.g. choosing more appropriate replenishment systems for products and avoiding bullwhip effect in a supply chain. The new technique was applied to a simulating data set and demonstrated the results of classification that differ from the classical one. The suggested method must be considered as a preferable technique for classification as it is based on more reliable and accurate data and robust estimation of mean value and standard deviation.","PeriodicalId":263883,"journal":{"name":"2018 4th International Conference on Logistics Operations Management (GOL)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122640403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}