45 research outputs found
Omni-channel logistics : state of the art
This book is the result of a first-time cooperation between the Association of Logistics Designers (VLO) and the European Supply Chain Forum (eSCF) – both closely related to university and having knowledge sharing as its focal points. It contains chapters that combine university professors or researchers from eSCF with logistics designers from VLO.Omni-channel logistics is becoming more and more the buzzword in the logistics and supply chain world. Both online and offline retail companies see it as a way to broaden their offering to customers.The key question is how this is happening and how the relevant supply processes need to be adapted to handle this omni-channel thinking.This book gives an interesting overview of the current state-of-the-art in the literature and practice related to omni-channel logistics. All relevant decision problems are reviewed and discussed in detail. Clearly, the world is changing as we speak. Nevertheless, we aimed to give a complete overview of the current evolution. A number of real-life cases are offered and discussed, as suchcomplementing the academic literature. We are indebted to 17 more authors from both our associations that have put effort into establishing a logistics designer’s view on omni-channel logistics
Omni-channel logistics : state of the art
This book is the result of a first-time cooperation between the Association of Logistics Designers (VLO) and the European Supply Chain Forum (eSCF) – both closely related to university and having knowledge sharing as its focal points. It contains chapters that combine university professors or researchers from eSCF with logistics designers from VLO.Omni-channel logistics is becoming more and more the buzzword in the logistics and supply chain world. Both online and offline retail companies see it as a way to broaden their offering to customers.The key question is how this is happening and how the relevant supply processes need to be adapted to handle this omni-channel thinking.This book gives an interesting overview of the current state-of-the-art in the literature and practice related to omni-channel logistics. All relevant decision problems are reviewed and discussed in detail. Clearly, the world is changing as we speak. Nevertheless, we aimed to give a complete overview of the current evolution. A number of real-life cases are offered and discussed, as suchcomplementing the academic literature. We are indebted to 17 more authors from both our associations that have put effort into establishing a logistics designer’s view on omni-channel logistics
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Urban freight distribution and innovative last-mile solutions from a traffic perspective
Urban population growth, the rise of e-commerce, and the increased need for economically and environmentally sustainable solutions represent urban freight distribution’s biggest challenges. Traffic and city logistics are often two sides of the same coin, as congestion affects city freight movements and vice versa.
For this reason, it is important to develop comprehensive mobility and traffic management solutions that consider both systems. During the last decade, technology improvements in wireless communication, computational and sensing technologies, have paved the way to a series of mobility and transportation options (e.g., crowdshipping and driverless vehicles) that could transform the landscape of last-mile delivery. The main contribution of this dissertation consists of modeling urban freight impacts on traffic and investigating the potential implications of innovative last-mile solutions.
The first part of this dissertation focuses on the feedback between freight movements and traffic, taking into consideration the impact of passenger vehicles on commercial vehicles, and vice versa. In order to achieve this goal, it is necessary to model trucks’ movements and loading/unloading operations with ad-hoc traffic simulations. Most of existing research has focused on analytical, static, or microscopic models, that either lack accuracy or scalability. Hence, this dissertation creates algorithms that couple existing macroscopic traffic flow models with the microscopic behavior of delivery vehicles. This issue is investigated both at single-link and network levels, by means of a suitable simulation framework. In both cases, applications of the modeling approach for freight traffic and freight demand management are shown.
In the second part of this dissertation the potential impacts of last-mile delivery solutions are evaluated using the developed simulation framework. First, the impacts of alternative City Logistics solutions, such as off-peak deliveries and access restrictions are investigated. Then, the developed modeling framework is extended to investigate a crowdsourced service for parcel deliveries. The effects on traffic and emissions are investigated for the adoption of crowdshipping by carriers delivering parcels in the city center of Rome, Italy. The externalities associated with several strategic (chosen mode) and operational (detour length, parking behavior, and traffic conditions) aspects of this service are analyzed by means of simulation in realistic settings.
Some results allow preliminary considerations about the effects of last-mile delivery solution that can been confirmed in other studies. Other findings, instead, are in line with studies from previous literature that adopted different approaches. The practice of off-peak deliveries, consisting in shifting part of the trips and operations to less congested hours of the day (typically evening and night) has proved to be an effective solution to freight-related congestion in urban settings. Restricting from deliveries specific links or sets of links, instead, could be beneficial only in some situations. Alternative crowdshipping implementation features, such as the transportation mode choice, but also operational aspects (such as availability of parking, optimization of existing trips, and implementation during off-peak hours) can also considerably influence the final traffic and emissions impacts of this service.Civil, Architectural, and Environmental Engineerin
Operational Research: Methods and Applications
Throughout its history, Operational Research has evolved to include a variety of methods, models and algorithms that have been applied to a diverse and wide range of contexts. This encyclopedic article consists of two main sections: methods and applications. The first aims to summarise the up-to-date knowledge and provide an overview of the state-of-the-art methods and key developments in the various subdomains of the field. The second offers a wide-ranging list of areas where Operational Research has been applied. The article is meant to be read in a nonlinear fashion. It should be used as a point of reference or first-port-of-call for a diverse pool of readers: academics, researchers, students, and practitioners. The entries within the methods and applications sections are presented in alphabetical order. The authors dedicate this paper to the 2023 Turkey/Syria earthquake victims. We sincerely hope that advances in OR will play a role towards minimising the pain and suffering caused by this and future catastrophes
Operations Research for Planning and Managing City Logistics Systems
The chapter presents the Operations Research models and methods to plan and manage City Logistics systems, in particular their supply components. It presents the main planning issues and challenges, and reviews the proposed methodologies. The chapter concludes with a discussion on perspectives for City Logistics and decision-support methodological developments
Prometno-tehnološka optimizacija faze uručenja poštanskih pošiljaka
Technological phase end-delivery represents the most expensive activity of postal traffic. By identifying user requirements and separating it as a distinguished holistic system and process it is possible to identify factors which affect efficiency and effectiveness regarding handing over and delivery of postal items. End-delivery has decisive effect on quality beacuse as a service subsystem directly represents postal service to end users. Postal services are performed by using public or autonomous postal network. Systematic modeling of delivery districts, application of mathematical and heuristic methods with adaptation of intelligent transportation solutions optimize network and everyday operational costs.Tehnološka faza uručenja predstavlja najskuplju aktivnost odvijanja poštanskog prometa. Prepoznavanjem korisničkih zahtjeva uz postavljanje uručenja kao izdvojenog holističkog sustava i procesa moguće je utvrditi čimbenike koji utječu na učinkovitost te djelotvornost dostave i isporuke poštanskih pošiljaka. Uručenje ima presudan utjecaj na kvalitetu jer kao uslužni podsustav direktno predstavlja poštansku djelatnost krajnjim korisnicima. Poštanske usluge se obavljaju korištenjem javne ili autonomne poštanske mreže. Sustavno modeliranje dostavnih rajona, primjena matematičkih i heurističkih metoda uz adaptaciju inteligentnih transportnih rješenja optimiziraju mrežu te svakodnevne operativne troškove