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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Hållbar citylogistik : En fallstudie över hur flödet av godstransporter i Skövdes stadskärna kan förbättras utifrån ett intressent- och hållbarhetsperspektiv / Sustainable city logistics : A case study about how the flow of freight transport can be improved in Skövde’s urban centre from a stakeholder and sustainability perspective

Ryberg, Lisa, Skogum, Johanna January 2019 (has links)
För att skapa levande stadskärnor där människor trivs och vill vistas, behöver godstransporter förse stadskärnornas verksamheter med varor. Dessa urbana godstransporter leder dock till ett flertal negativa effekter för både lönsamheten, människan och planeten. Syftet med denna fallstudie är följaktligen att bidra till skapandet av en mer hållbar citylogistik, där flödet av godstransporter in till, inom samt ut ur Skövdes stadskärna förbättras utifrån både ett intressent- och hållbarhetsperspektiv. Studien undersöker dessutom vilka problem och utmaningar som finns, samt vilka intressekonflikter som kan uppstå vid skapandet av en hållbar citylogistik. I den teoretiska referensramen presenteras innebörden av en hållbar citylogistik samt vilka intressenter och aktörer som är involverade i skapandet av en hållbar citylogistik. De urbana godstransporternas negativa effekter på stadsmiljön redovisas sedan ur ett socialt, ekonomiskt och miljömässigt perspektiv, vilket ligger till grund för de teoretiska förbättringsförslagen. Förbättringsförslagen utgår från att de bör gynna så många intressenter som möjligt för att ses som trovärdiga, samt leda till ett förbättrat flöde av godstransporter in till, inom samt ut ur Skövdes stadskärna. För att studera problematiken i Skövdes stadskärna utifrån olika intressenters perspektiv består den empiriska datainsamlingen av en kombinerad metodansats. Denna datainsamling innehåller således en direkt observation och insamling av kvantitativa data över hur godstransporter rör sig i Skövdes stadskärna, ett flertal intervjuer med både distributörer och godsmottagare, samt en genomförd enkätstudie riktad mot centrumbesökare i Skövdes stadskärna. Varje intressentgrupp har även fått möjligheten att rangordna de urbana godstransporternas negativa effekter utifrån vad de ansåg var mer respektive mindre viktigt vid skapandet av en hållbar citylogistik i Skövde för att bidra till en hållbar stadskärna. Rapportens analys baseras på framtagna förbättringsförslag samt intressentgruppernas syn på en hållbar citylogistik. Detta för att komma fram till hur flödet av godstransporter i Skövdes stadskärna kan förbättras ur ett hållbarhetsperspektiv för att gynna flera olika intressenter. Resultatet innehåller således fyra rekommenderade förbättringsförslag som anses vara rimliga att implementera i Skövdes stadskärna inom en uppskattad tidshorisont. / In order to create an attractive urban centre where people thrive, freight transport needs to provide the urban centre businesses with deliveries. However, these urban freight transports have several negative effects on profitability, people and the planet. The aim of this case study is therefore to create a more sustainable city logistics, where the flow of freight transports into, within and out of Skövde's urban centre will be improved from both a stakeholder and sustainability perspective. The study also considers the existing problems and challenges, and what conflicts of interest can arise, in the creation of a sustainable city logistics. The theoretical framework presents the content of a sustainable city logistics and which stakeholders and actors are involved in the creation of a sustainable city logistics. Later the negative impacts of urban freight transport are described from a social, economic and environmental perspective, which forms the basis for the theoretical improvement proposals. The proposals for improvement should benefit as many stakeholders as possible in order to be credible, and improve the flow of freight transport into, within and out of Skövde's urban centre. In order to study the problems in Skövde's urban centre from the perspective of different stakeholders, the empirical data collection consists of a combined research methodology. The data collection contains a direct observation and quantitative data considering the movement of freight transport in Skövde's urban centre. Furthermore, the study contains surveys and interviews with distributors and receivers in Skövde's urban centre. Each stakeholder has also been given the opportunity to rank which negative impacts of urban freight transport they considered to be more or less important in the creation of a sustainable city logistics in Skövde. The analysis is based on both proposals for improvement and the stakeholders' perspective on sustainable city logistics to find out how the flow of freight transport in Skövde's urban centre can be improved from a sustainability perspective in order to benefit several stakeholders. The result contains four recommended improvement proposals that are considered reasonable to implement in Skövde's urban centre within an estimated time horizon.
22

Um modelo de localização-roteirização de instalações de transferência para distribuição de carga urbana baseado no método de cluster-first route-second. / A location-routing model for urban distribution centers based on the cluster -first route- second method.

Takebayashi, Fabiana 17 November 2014 (has links)
O trabalho apresenta o desenvolvimento e a aplicação de um modelo de localização de centros intermediários de consolidação e redistribuição de cargas em um ambiente urbano brasileiro. O método integra o TransCAD e o OpenSolver e é aplicado à cidade de Curitiba, uma das dez mais populosas do Brasil. O método proposto é caracterizado como um modelo de localização-roteirização baseado em agrupamento e subsequente roteirização, identificado na literatura por cluster-first routesecond; a adoção deste ordenamento permite tratar o problema para o atendimento de muitos estabelecimentos, como os até 65 mil em alguns dos cenários no estudo de caso de Curitiba. Cada agrupamento representa os pontos a serem visitados em uma única viagem e o processo inicial tenta minimizar as distâncias entre os estabelecimentos de cada grupo; na fase seguinte o melhor roteiro é computado para cada grupo; a terceira etapa consiste em calcular, para cada grupo e candidato, a distância total percorrida na viagem; por fim, a implantação ou não dos candidatos a centros de distribuição é obtida com a minimização em um modelo de programação linear inteira dos custos de aquisição e de operação dos centros de distribuição e dos custos de transportes. A dissertação também aborda a crescente percepção da importância da logística urbana à qualidade de vida nas cidades onde o adensamento populacional acirra a disputa pelo espaço viário e o conceito de City Logistics, que delineia entre outras medidas o ambiente cooperativo no qual implantação de centros de distribuição urbanos deve ocorrer. / This work presents the development and application of a model for the location of intermediary consolidation and redistribution freight centers in Brazilian cities. The method integrates TransCad and OpenSolver, and its use was evaluated with data from the City of Curitiba one of the ten largest in Brazil. The proposed method is characterized as a location-routing model based on clustering and subsequent tour building known as cluster-first route-second. This enables dealing with problem instances containing as many as 65 thousand customers. Each cluster comprehends the points visited on a single trip and the initial process minimizes the distances between customers; the routes are calculated in the next phase and the third step consists in computing the total distance covered in each trip for every cluster and every candidate; finally, the implementation of each distribution center candidate is decided by minimizing the costs of acquisition, operation and distribution, using an integer linear programming model. The dissertation also highlights the growing realization of the importance of urban freight transport to quality of life, especially in cities where increasing population density intensifies the competition for road space, and City Logistics concepts, that outline among other measures the cooperative environment where implementation of urban distribution centers should occur.
23

Models and Methods for the City Logistics: The Two-Echelon Capacitated Vehicle Routing Problem

Gonzalez-Feliu, Jesus 12 May 2008 (has links) (PDF)
La distribution de marchandises est un secteur en constant développement et constitue un facteur économique important. Par contre, dans les villes, il contribue notamment aux problèmes de congestion, pollution, bruit et d'autres dérangements à la population des villes. Pour faire face à ces problèmes, une nouvelle discipline est née à la fin du XXe siècle, la " City Logistics ", qui a comme objectifs principaux la réduction de la congestion, la pollution et le bruit occasionné par le transport de marchandises en ville. Dans les dernières années, plusieurs études et expériences se sont développées en toute l'Europe, mais pour l'instant une politique commune en matière de logistique urbaine n'a pas encore été proposée par l'Union Européenne. En Italie, seulement certaines villes de petite taille ont expérimenté des politiques de " city logistics " avec succès, mais sans un lien entre elles. Nous observons que ces expériences utilisent des centres urbains de distribution de marchandises, ce qui peut se traduire en un système de transport à deux ou plus niveaux. Plusieurs études en recherche opérationnelle ont traité des problématiques liées à des systèmes à niveaux multiples pour la distribution de marchandise. Néanmoins, l'optimisation des coûts de transport est en générale réalisé en considérant chaque niveau indépendant des autres, ou en approximant les coûts du transport dans certains niveaux pour simplifier. Un autre problème est le manque d'une unification de la terminologie utilisée dans ces études, qui difficulte la recherche bibliographique. Le but de cette recherche est, d'un coté, proposer des lignes guide d'accion en matière de planification de la distribution urbaine de marchandises, en unifiant certains termes, et d'un autre coté présenter une famille de problèmes d'optimisation de routes des véhicules qui considère les systèmes à niveaux multiples dans son ensemble et pas comme une somme de systèmes indépendants. Dans un premier temps, nous présentons les principales expériences de " city logistics " en Italie, ainsi que des lignes d'action dans la planification des systèmes de distribution urbaine des marchandises qui puissent devenir opérationnels et efficients. Ensuite nous présentons les principales problématiques et limites de l'optimisation de systèmes de transports à niveaux multiples, en unifiant les concepts et la notation. Nous proposons une nouvelle famille de problèmes d'optimisation de routes de véhicules pour des systèmes à niveaux multiples, en détaillant le cas basique : le problème de routes de véhicules à deux niveaux. Nous proposons des modèles mathématiques pour ce problème et des résultats numériques pour illustrer les avantages et les limites de la modélisation de ces systèmes.
24

Um modelo de localização-roteirização de instalações de transferência para distribuição de carga urbana baseado no método de cluster-first route-second. / A location-routing model for urban distribution centers based on the cluster -first route- second method.

Fabiana Takebayashi 17 November 2014 (has links)
O trabalho apresenta o desenvolvimento e a aplicação de um modelo de localização de centros intermediários de consolidação e redistribuição de cargas em um ambiente urbano brasileiro. O método integra o TransCAD e o OpenSolver e é aplicado à cidade de Curitiba, uma das dez mais populosas do Brasil. O método proposto é caracterizado como um modelo de localização-roteirização baseado em agrupamento e subsequente roteirização, identificado na literatura por cluster-first routesecond; a adoção deste ordenamento permite tratar o problema para o atendimento de muitos estabelecimentos, como os até 65 mil em alguns dos cenários no estudo de caso de Curitiba. Cada agrupamento representa os pontos a serem visitados em uma única viagem e o processo inicial tenta minimizar as distâncias entre os estabelecimentos de cada grupo; na fase seguinte o melhor roteiro é computado para cada grupo; a terceira etapa consiste em calcular, para cada grupo e candidato, a distância total percorrida na viagem; por fim, a implantação ou não dos candidatos a centros de distribuição é obtida com a minimização em um modelo de programação linear inteira dos custos de aquisição e de operação dos centros de distribuição e dos custos de transportes. A dissertação também aborda a crescente percepção da importância da logística urbana à qualidade de vida nas cidades onde o adensamento populacional acirra a disputa pelo espaço viário e o conceito de City Logistics, que delineia entre outras medidas o ambiente cooperativo no qual implantação de centros de distribuição urbanos deve ocorrer. / This work presents the development and application of a model for the location of intermediary consolidation and redistribution freight centers in Brazilian cities. The method integrates TransCad and OpenSolver, and its use was evaluated with data from the City of Curitiba one of the ten largest in Brazil. The proposed method is characterized as a location-routing model based on clustering and subsequent tour building known as cluster-first route-second. This enables dealing with problem instances containing as many as 65 thousand customers. Each cluster comprehends the points visited on a single trip and the initial process minimizes the distances between customers; the routes are calculated in the next phase and the third step consists in computing the total distance covered in each trip for every cluster and every candidate; finally, the implementation of each distribution center candidate is decided by minimizing the costs of acquisition, operation and distribution, using an integer linear programming model. The dissertation also highlights the growing realization of the importance of urban freight transport to quality of life, especially in cities where increasing population density intensifies the competition for road space, and City Logistics concepts, that outline among other measures the cooperative environment where implementation of urban distribution centers should occur.
25

Urban freight consolidation platforms as a means of decreasing costs and enhancing performance of urban logistics chains within the framework of a market economy: Application to Brussels-Capital

Janjevic, Milena 27 June 2016 (has links)
Les centres de consolidation urbaine sont une mesure populaire dans la logistique urbaine visant à rationaliser les trajets liés aux livraisons en ville. Cependant, bien que les avantages environnementaux de ce type de dispositifs ont été largement abordés et documentés, un nombre important de cas d’implémentation n’ont pas parvenu à atteindre une participation suffisante et démontrer un modèle de fonctionnement viable. Les principaux obstacles liés à leur mise en œuvre relèvent des préoccupations financières et de l’acceptation de la part des acteurs de la logistique urbaine. Par conséquent, le succès de ces schémas logistiques est souvent conditionné par un fort soutien réglementaire et financier des pouvoirs publics. Récemment, de nouveaux types de modèles d'exploitation des centres de consolidation urbaine, proposant une gamme d'activités à valeur ajoutée, sont apparus, permettant une meilleure intégration de ces plateformes dans la chaîne d'approvisionnement. En outre, un grand nombre d'expériences récentes se concentrent sur la consolidation de fret à petite échelle, ce qui permet un assouplissement des besoins en ressources matérielles et humaines. L'objectif de cette thèse est d'étudier le potentiel des plates-formes de consolidation de fret urbaines de diminuer les coûts et d'améliorer les performances des chaînes logistiques urbaines. En particulier, la thèse traitera des facteurs qui influent sur la viabilité de ces schémas logistiques dans le cadre d'une économie de marché.La thèse est structurée autour de trois questions de recherche qui portent sur (1) la viabilité du modèle traditionnel du centre de consolidation urbain basé sur les activités de transbordement et de consolidation, (2) les impacts des mesures qui visent à soutenir la mise en œuvre des schémas de consolidation et le niveau d’approbation des acteurs de la logistique urbaine qui en découle, (3) l’impact des nouvelles approches dans le domaine de plates-formes de consolidation de marchandises en ville et en particulier des nouveaux modèles d’exploitation de centres de consolidation urbains et des plates-formes de micro-consolidation. En abordant ces aspects, la thèse démontre que le modèle du centre de consolidation urbain traditionnel peut présenter une alternative viable, mais que le succès de ces schémas logistiques est soumis à un grand nombre de conditions qui sont difficiles à satisfaire en pratique. La thèse identifie les mesures d'accompagnement qui peuvent à la fois accroître la participation dans le schéma de consolidation et l'acceptation des acteurs, ainsi que celles qui rencontrent une réponse plus mitigée de la part des acteurs. Enfin, la thèse identifie les avantages potentiels des nouveaux modèles d’exploitation de centres de consolidation ainsi que les avantages de la consolidation à petite échelle. / Urban consolidation centres are a popular measure in city logistics, which aims at rationalizing delivery trips in an urban area. However, although their environmental benefits have been extensively addressed and documented, many of the implementation cases fail to reach sufficient participation and demonstrate a viable business model. Some of the main barriers linked to their implementation are the financial concerns and the stakeholder acceptance. Consequently, the success of these schemes has often been subject to a strong regulatory and financial support from public authorities. Recently, new forms of urban consolidation centre operating models offering a range of value-added activities have appeared, allowing a better integration of these facilities in the overall supply chain. Furthermore, a large number of recent experiments focus on small-scale freight consolidation, relaxing the requirements for material and human resources. The objective of this thesis is to investigate the potential of urban freight consolidation platforms to decrease the costs and improve the performance of urban logistics chains. In particular, the thesis will address factors that influence the viability of these schemes in a framework of market economy.The thesis is structured around three research questions that address (1) the viability of the traditional urban consolidation centre model based on transhipment and consolidation activities (2) the impact of market-based accompanying measures for urban consolidation centre project implementation and the resulting level of stakeholder support and (3) the impact of new approaches in urban freight consolidation platforms and in particular those of new urban consolidation centres operating models and micro-consolidation platforms. By tackling these aspects, the thesis demonstrates that the traditional urban consolidation centre model can present a viable alternative but that the success of the scheme is subject to a large number of requirements that are often difficult to meet in practice. The thesis highlights accompanying measures that can both increase the expected participation in the consolidation scheme as well as the stakeholder acceptance of the scheme, and those that meet a less positive stakeholder response. Finally, the thesis identifies the potential benefits of new operating models of urban consolidation centres and of small-scale consolidation. / Doctorat en Sciences de l'ingénieur et technologie / info:eu-repo/semantics/nonPublished
26

Nouvelles organisations de la distribution urbaine des colis sur le dernier kilomètre : innover par une approche spatiale / Structuring last-mile parcel delivery solutions for urban zones : an innovative spatial approach for urban goods distribution

Ducret, Raphaëlle 19 December 2014 (has links)
Le contexte technologique et socioéconomique favorise la croissance des volumes de colis échangés en France et particulièrement l'augmentation des livraisons dans les villes. Livraisons qui se complexifient sous l'effet des contraintes urbaines, des injonctions de durabilité, des évolutions des attentes des clients. Les prestataires de la distribution urbaine de colis doivent relever les défis économiques, organisationnels, environnementaux et politiques que représente cette mutation de la distribution du dernier kilomètre. Replacer la ville et son organisation spatiale au centre de la création de nouvelles organisations de la distribution et rapprocher l'analyse spatiale des outils et des techniques de gestion du transport de marchandises en ville (TMV), et notamment de la modélisation, peut permettre d'innover. La thèse va développer cette posture, jusque-là délaissée par les recherches en TMV. Une analyse détaillée de la nature des relations entre forme urbaine, organisations spatiale et TMV va être proposée. A partir de ces résultats, les premiers éléments d'une modélisation spatiale du TMV au service de la création d'un outil d'aide à la décision capable de segmenter la ville en zones différenciées en fonction de leurs caractéristiques spatiales, socioéconomiques et politiques et d'adapter les solutions de livraison par zones seront proposés. / With the spread of new technologies and the advent of economic and social changes, the volume of parcels has grown in France. Parcel deliveries in cities have similarly experienced an important increase. Deliveries have become more and more complex because of changing client patterns, urban constraints and cities' concerns for sustainability. The growing complexity of the ‘last mile' delivery poses economic, organizational, environmental and political challenges to parcel providers. Putting the spatial organization of cities back at the heart of the creation of new logistics organizations and integrating spatial studies to urban logistics techniques and tools, in particular in modelling, can be means of innovation. Until now spatial studies have been largely under-used in UF. This study will provide an in-depth analysis of the relationships between urban spatial organization, urban form and UF. Based on those results, the thesis provides the first elements of a spatial urban freight modelling approach. The modelling approach will enable the creation of a decision support tool able to identify homogeneous urban zones based on urban form, economic and political characteristics in order to offer the most suitable delivery solution to each zone of a city.
27

Evaluating the Impact of Double-Parked Freight Deliveries on Signalized Arterial Control Delay Using Analytical Models and Simulation

Keegan, Aaron J. 25 October 2018 (has links)
Freight deliveries on signalized urban streets are known to cause lane blockages during delivery. Traffic congestion associated with urban freight deliveries has gained increasing attention recently as traffic engineers and planners are tasked with finding solutions to manage increasing demand more sustainably with limited road capacity. The goal of this research is to evaluate two models for quantifying the capacity and signalized control delay effects of a lane-blocking freight delivery on an urban arterial. The two methods are: an All-or-Nothing model similar to methodology used in the Highway Capacity Manual 6th Edition, and a Detailed model consistent with kinematic wave theory. The purpose is to provide insight on the use of these tools for analysis of urban freight delivery. The signalized control delay results of the two models are compared with observed video data of urban deliveries from one city block of 8th Ave in New York City. Empirical confirmation of double-parked delivery impact on signalized controlled delay remains elusive due to an inability to isolate the effects of the deliveries from other traffic perturbations in the video sample. Instead, microscopic simulation using Aimsun is used for comparison to the theoretical models and the results lend credibility to the Detailed model. The simulation results show a similar trend of delay impact from double-parked deliveries located at a range distances from the intersection and more closely resembled the Detailed model. The All-or-Nothing model would provide only a coarse representation of the capacity and delay effects. The more detailed approach that accounts for the dynamics of queuing in front of the delivery vehicle provides closed form analytical formulas for capacity and signalized control delay that can account for varying locations of deliveries as well as analysis periods with some blocked cycles and others unblocked. Two policy implications are proposed: 1) that double-parked deliveries located mid-block likely result in less signalized control delay impact, and 2) freight receivers that attract double-parked deliveries near an intersection stop line should be prioritized in urban freight delivery mitigation policies such as off-hour delivery.
28

Sustainable Urban Freight Transportation : Configuring Modular and Robust Urban Hubs / Hållbar Urban Godstransport : Konfigurering av Modulära och Robusta Urbana Hubbar

Mathisson, Minna, Janson, Lisa January 2023 (has links)
The Urban Freight Transportation System faces many uncertainties and challenges in its future development. In the discussion regarding how to mitigate the challenges, the implementation of Urban Hubs is often brought up. However, most of the literature that exists within the field focuses on the logistic system as a whole, rather than the actual hubs specifically. The research gap regarding how Urban Hubs should be designed in order to be efficient with regards to multiple future scenarios, but also easy to adapt once so is needed, has been targeted throughout this study. The importance of robustness and adaptiveness has been underlined, and these concepts have in turn been linked to modularization, and the use of future scenario frameworks, respectively. This study has resulted in a proposed framework for constructing robust Urban Hubs, which was obtained by adapting a modularization framework, and integrating a future scenario framework for Urban Freight Transportation. The proposed framework has an extensive evaluation process, incorporating both Customer Values and future scenarios in the metrics, thus shedding extra light on this part of the construction process. The proposed framework was also tested in the study, through constructing and evaluating four different hub configurations, spanning from small to large, in order to determine which hub that performed best in the largest number of scenarios. The evaluation results could in turn contribute with indications as to what characterizes such a Hub configuration. In order to be able to construct the proposed framework, an understanding of Urban Hubs' layouts, functionalities included, and flow of goods, had to be obtained. This was done through conducting interviews with relevant stakeholders connected to Swedish Urban Hubs. Through the interviews, similarities and differences between Swedish Urban Hubs could be identified, thereby describing how the Swedish Urban Hub landscape looks today. Since the literature describing Urban Hubs is scarce, the study thus contributes towards filling that research gap as well. / Hållbara urbana godstransportssystem står inför många osäkerheter och utmaningar under sin fortsatta utveckling. I diskussionen kring hur dessa utmaningar ska kunna mildras, nämns ofta implementationen av Urbana Hubbar. Den existerande litteraturen inom området fokuserar dock mest på hela logistiksystemet, snarare än de Urbana Hubbarna specifikt. Avsaknaden inom forskningen vad gäller hur Urbana Hubbar bör bli designade i syfte att både vara robusta med avseende på flera olika framtidsscenarion och samtidigt även lätt kunna anpassas när så krävs, är vad denna studie har syftat till att undersöka. Vikten av både robusthet och möjligheten att anpassa sig har blivit underbyggd i studien, och koncepten har i sin tur kopplats till modularisering, respektive användandet av ramverk för framtidsscenarion. Studien resulterade i ett föreslaget ramverk för att konstruera robusta Urbana Hubbar, vilket erhölls genom att anpassa ett modulariseringsramverk, och integrera det tillsammans med ett ramverk för framtidsscenarion inom Urbana Godstransporter. Det föreslagna ramverket innefattar en omfattande evalueringsprocess, som både har integrerat Kundvärden och scenariospecifika parametrar i sina mått, och därmed tydligt visar på vikten av denna del under konstruktionsprocessen.  Det föreslagna ramverket testades dessutom i studien, genom att kontruera och utvärdera fyra olika hubbkonfigurationer, som tillsammans spände upp en rymd från mindre konfigurationer till större, mer komplexa varianter. Detta för att kunna fastställa vilken av dem som presterade bäst i flest scenarion. Resultaten från utvärderingen kunde i sin tur bidra med indikationer på vad som karaktäriserar en sådan hubbkonfiguration. För att kunna konstruera det föreslagna ramverket, krävdes djup förståelse för Urbana Hubbars layout, vilka funktionaliteter de innefattar, samt hur processflödet inuti hubbarna går till. Detta erhölls genom intervjuer med relevanta aktörer som var kopplade till svenska Urbana Hubbar. Genom intervjuerna kunde likheter och skillnader mellan svenska Urbana Hubbar identifieras, och från det kunde en kartläggning över svenska Urbana Hubbar göras. Eftersom litteraturen som beskriver Urbana Hubbar är knapp, bidrar studien dämred även till att fylla det forskningsgapet inom området.
29

Off-Peak Deliveries from a Business Model Perspective

ALLMÉR, KATARINA, FEYCHTING, SOFIA January 2016 (has links)
With an increasing urban population around the world, the need for urban freight distribution is constantly growing. Many cities face problems with traffic congestion, especially during eak hours in the morning and afternoon. At the same time, the roads are often nearly empty during nighttime. In some cities, like Stockholm, heavy haulage is not permitted to enter the city during the night. This means that carriers are forced to perform these deliveries during the day, which leads to inefficient distribution. To investigate the possibilities to use nighttime hours for deliveries, which could lead to a more efficient distribution system and increased sustainability of the city, a pilot project has been initiated by the City of Stockholm to test off-peak deliveries. Other similar trial projects have encountered difficulties with getting businesses to participate, and the incentives to shift to offpeak deliveries have been unclear. Therefore, this thesis aims to investigate what incentives there are for actors within a supply chain to make this shift and the key factors that enable the supply chain to benefit. The thesis is performed as a case study on the pilot project in Stockholm, and uses a business model perspective to analyze how value is created and captured throughout the supply chain. The results show that there is potential for supply chains to increase its total value through offpeak deliveries as a result of increased efficiency, improved delivery reliability and increased utilization of trucks. Pricing models and relative negotiation power between actors have a large effect on how the value is distributed. The main contributors to creating increased value are sufficient delivery volume, compatible processes, and full utilization of trucks. The possibility to use off-peak deliveries for marketing is relatively unexploited and could potentially create more value. / Med  en  ökande  befolkning  i  städer  världen  över  ökar  också  behovet  av  varudistribution  istadskärnor. Många städer har problem med trängsel i trafiken, i synnerhet under rusningstid på morgonen och eftermiddagen. Samtidigt är vägarna ofta nästan tomma på natten. I en del städer, som Stockholm, är det förbjudet att köra tung lastbil i innerstaden under natten. Detta betyder att distributörer är tvingade att utföra dessa leveranser under dagtid, vilket leder till ineffektiv distribution.För att undersöka möjligheterna att utnyttja nattens timmar till leveranser, vilket skulle kunna leda till ett mer effektivt distributionssystem och en ökad hållbarhet för staden, har ett pilotprojekt initierats av Stockholms Stad för att testa nattliga leveranser. Andra liknande projekt har stött på problem med att få företag att deltaga, och incitamenten för att flytta leveranser till nattetid har varit otydliga. Därför syftar detta arbete till att undersöka vilka incitament som finns för aktörer inom en försörjningskedja att göra detta byte och vilka huvudfaktorer som möjliggör att kedjan kan dra fördel av det.Arbetet utförs i form av en fallstudie på pilotprojektet i Stockholm, och använder ett affärsmodellsperspektiv för att analysera hur värde skapas och fångas inom kedjan. Resultaten visar att det finns potential för försörjningskedjor att öka sitt totala värde genom nattliga leveranser som ett resultat av ökad effektivitet, förbättrad leveranssäkerhet och ökad nyttjandegrad av lastbilen. Prismodeller och relativ förhandlingsmakt mellan aktörer har en stor påverkan på hur värdet fördelas. De faktorer som bidrar mest till ett ökat värde är tillräcklig leveransvolym, kompatibla processer och hög nyttjandegrad av lastbilar. Möjligheten att använda nattliga leveranser för marknadsföringssyfte är relativt outnyttjat och skulle potentiellt kunna skapa mer värde.
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Crowdshipping: Attesterande avhinder och möjligheter : Hur konceptet uppfattas av studenter i Sverige / Crowdshipping: Certification of obstacles and opportunities : How the concept is perceived by students in sweden

Vancea, Edward, Novljakovic, Harris January 2022 (has links)
E-handel har de senaste åren ständigt ökat vilket har bidragit till ökande krav på hållbaratransporter vilket medverkat till forskning av alternativ till traditionella transportföretag.Crowdshipping är ett koncept där det med hjälp av teknologiska applikationer kan utnyttjaindividers resurser för att skapa transportnätverk inom urbana områden. Användandet avindivider som redan är på väg till en plats och tar med ett paket i farten kan innebära mindrefordon på vägarna. I denna studie samlade vi in empirisk data genom att skicka ut en enkät till olika facebook-grupper bestående av studenter i Sverige och utförde två fokusgrupper med totalt åtta deltagare. Syftet med enkäten och fokusgrupperna var att undersöka respondenternasinställning och uppfattade hinder/möjligheter till crowdshipping. Med kunskap samlat utifrånvetenskapliga artiklar kunde ett teoretiskt ramverk etableras. Genom att studerat väsentligafaktorer till crowdshipping (tillit och säkerhet, miljö och hållbarhet, tid ochkompensation/prissättning) kunde vi analysera vårt empiriska material. Analysen byggs uppefter de teoretiska faktorerna som har inverkan på crowdshipping. Det visade sig attrespondenterna hade bekymmer med flertal säkerhetsaspekter inom CS-initiativ sompåverkade deras inställning negativt. Dock ansåg många respondenter initiativet som positivtifall det gick att säkerställa miljömässiga fördelar och flertalet säkerhetsaspektertillhandahölls. / E-commerce has steadily increased in recent years, which has contributed to increaseddemands for sustainable transport, which contributes to research into alternatives totraditional transport companies. Crowdshipping is a concept where, with the help oftechnological applications, it can utilize individuals' resources to create transport networks inurban areas. The use of individuals who are already on their way to a place and taking apackage on the go can mean fewer vehicles on the roads. In this study, we collected empirical data by sending out a questionnaire to various Facebookgroups consisting of students in Sweden and conducted two focus groups with a total of eightparticipants. The purpose of the survey and focus groups was to examine the respondents'attitudes and perceived obstacles/opportunities for crowdshipping. With knowledge gatheredbased on scientific articles, a theoretical framework could be established. By studyingsignificant factors for crowdshipping (trust and security, environment and sustainability, timeand compensation/pricing), we were able to analyze our empirical material. The analysis isbased on the theoretical factors that have an impact on crowdshipping. It turned out that therespondents had concerns with several security aspects within CS initiatives that had anegative effect on their attitude. However, many respondents considered the initiative to bepositive if it was possible to ensure environmental benefits and most safety aspects wereprovided.

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