European Transport / Trasporti Europei (2013) 54
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Muñuzuri J., Gonzalez-Feliu J.
Mancini S.
Multi-echelon distribution systems in city logistics
Lindholm M.
Urban freight transport from a local authority perspective – a literature review
Janjevic M., Kaminsky P., Ballé Ndiaye A.
Arvidsson N., Browne M.
Gentile G., Vigo D.
Movement generation and trip distribution for freight demand modelling applied to city logistics
Papers from the 14th Meeting of the EURO Working Group on Transportation (EWGT) held in Poznan, Poland, on September 6 - 9, 2011 on “Traffic management and traffic behavior: a European perspective”.
Ambrosini C., Gonzalez-Feliu J., Toilier F.
A design methodology for scenario-analysis in urban freight modeling
Bell K. E., Kothuri S. M. Figliozzi M. A.
Emission model sensitivity analysis: The value of smart phone weight-mile tax truck data
van Duin, J.H.R., Tavasszy, L.A., Quak, H.J.
Towards E(lectric)- urban freight: first promising steps in the electric vehicle revolution
Muñuzuri, J., Gonzalez-Feliu, J.,
Gonzalez-Feliu, J., Basck, P., Morganti, E.
Urban logistics solutions and financing mechanisms: a scenario assessment analysis
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- PublicationA design methodology for scenario-analysis in urban freight modeling(EUT Edizioni Università di Trieste, 2013-07-09)
;Ambrosini, Christian ;Gonzalez-Feliu, JesusToilier, FlorenceUrban goods movement modelling is a popular subject in urban lo gistics research. However, most models remain under - used because practitioners have difficulties to apply them to simulate urban policies and their impacts on transport flows, mainly when the assessed situations are different from the initial usage of the mode. This paper aims to answer to that issue by proposing a methodology of scenario construction and assessment using current models and tools. The methodological contribution of the paper arises on defining the main elements of a policy - based scenario an d on developing a procedure to build the inputs a model needs to simulate the impacts of policy - oriented strategies on urban goods transport flows. First, the main elements policy makers can take into account when defining middle term strategies are identi fied. Then, a scenario construction procedure is proposed, able to build reference scenarios and trend scenarios. An example for the urban area of Lyon is proposed. According to the reference scenario, it becomes possible to compare and understand urban go ods movement changes, by implementing the model introducing variations, such as activity relocation or urban distribution centre whose impacts concern not only the freight flows themselves but also the whole urban logistics organisation. In this way, the p roposed methodology is adapted to policy - oriented strategic and tactical planning, mainly for public stakeholders.2030 1234 - PublicationA review of the success and failure of tram systems to carry urban freight: the implications for a low emission intermodal solution using electric vehicles on trams(EUT Edizioni Università di Trieste, 2013)
;Arvidsson, NiklasBrowne, MichaelThis paper considers the potential use of trams and Electric D istribution V ehicles ( E DV s ) as cargo carriers in intermodal urban freight distribution. D istribution activities are vital for society but are also the cause of environmental and social problems . Transport ing goods in urban areas, where most logi stics chains start or end, is an activity that increasingly generates severe problems for all stakeholders, for instance, local authorities, the logistic industry, customers and society in general . New transport solutions are necessary in order to decrease traffic congestion, noise and traffic pollution, e.g. , emissions of greenhouse gases and other pollutants in urban areas. A possible solution to these problems is to transform the current freight distribution system within cities, for example by favouring the enhancement of intermodal transport alternatives , i.e. combining road and rai l transport. I nformation has been collected through a literature review and interviews in Amsterdam and from these results a conceptual model is presented, as well as a low e mission concept using electric vehicles on trams in Gothenburg . The concept utilize s techniques from the shipping industry, train industry, and the car industry4487 6590 - PublicationDecision-making tools and procedures for City Logistics. An introduction to the Special Issue on decision support for urban logistics(EUT Edizioni Università di Trieste, 2013)
;Muñuzuri, JesusGonzalez-Feliu, Jesus1383 1048 - PublicationDownscaling the consolidation of goods – state of the art and transferability of micro-consolidation initiatives(EUT Edizioni Università di Trieste, 2013)
;Janjevic, Milena ;Kaminsky, PhilipBallé Ndiaye, AlassaneConsolidation schemes are a popular measure in city logistics. The most common of these consolidation schemes are Urban Consolidation Centres (UCCs). However, many innovative experiences have been performed in the cities across the globe, offering a large panel of alternative schemes. In particular, many experiences have focused on down scaling the consolidation effort by bundling the goods much closer to the reception point. This paper aims in offering a closer view into different alternatives that exist regarding the physical micro - consolidation of goods and to provide guidelines on se lecting the most appropriate solutions for a specific city area. In order to do this, we will develop a transferability methodology, based on the study of case studies across the Europe. We will build on the current transferability methodologies developed under several EU projects and adjust them for the specific case of the micro - consolidation measures. This will lead us to the definition of the most important features for the transferability of the micro - consolidation measures. Based on this, we will est ablish for each feature a list of attributes for the transferability of the micro - consolidation devices, which will be prioritized according to their importance for the transferability success.2295 1649 - PublicationEmission model sensitivity analysis: The value of smart phone weight-mile tax truck data(EUT Edizioni Università di Trieste, 2013-07-09)
;Bell, Katherine E. ;Kothuri, Sirisha M.Figliozzi, Miguel A.This research serves to evaluate the potential use of a system developed by the Oregon Department of Transportation (ODOT) for emission estimates. The data collection system developed by ODOT – Truck Road Use Electronics (TRUE) – includes a smart phone application with a Global Positioning System (GPS) device and microprocessor. Previous research with the TRUE data served to demonstrate its use for important ancillary applications such as highly accurate trip generation rates and m obility performance measures. In addition, it was shown that the TRUE data has strong potential use for safety, accessibility and connectivity, system condition and environmental stewardship performance measures. This new research builds on that past work and evaluates the potential use of the TRUE data for emissions estimates that take into account truck type details, truck weight and detailed speed profiles. A sensitivity analysis using the U.S. Environmental Protection Agency's (EPA) Motor Vehicle Emissi on Simulator 2010b (MOVES2010b) is performed in order to understand the level of error that might be encountered when such detailed data are not available. The impact of grade on emissions estimates is also considered. Results indicate that TRUE data in in tegration with Oregon Department of Transportation (ODOT) weight - mile tax (WMT) data will greatly improve the accuracy of emissions estimations at the project and regional level.2090 1385 - PublicationMovement generation and trip distribution for freight demand modelling applied to city logistics(EUT Edizioni Università di Trieste, 2013)
;Gentile, GuidoVigo, DanieleThe quantification of the freight movements disaggregated by supply chain occurring in each traffic zone for the urban delivery of goods and that of the corresponding Origin - Destination trip tables is essential to evaluate the effects of any city logistic poli cy in terms of vehicle congestion and polluting emissions through the assignment of truck flows on the road network. In this paper we propose two innovative demand models: the first one for movement generation, the second one for trip distribution. The mov ement generation is addressed through an extension of the category index model, which takes into account the hierarchy in the classification system of the economic activities, thus avoiding aggregating the many existing classification codes into pre - specif ied groups. The trip distribution is addressed through an adaptation of the gravity model, which takes into account that deliveries are organized in tours. This approach has been successfully applied to the case of Emilia - Romagna Region in Italy, where an extensive campaign of surveys has permitted to calibrate both models for several towns and cities with various dimensions and vocations.2738 2354 - PublicationMulti-echelon distribution systems in city logistics(EUT Edizioni Università di Trieste, 2013)Mancini, SimonaIn the last decades , the increasing quality of services requested by the cust omer, yields to the necessity of optimizing the whole distribution process. This goal may be achieved through a smart exploitation of existing resources other than a clever planning of the whole distribution process. For doing that, it is necessary to enha nce goods consolidation. One of the most efficient way to implement it is to adopt Multi - Echelon distribution systems which are very common in City Logistic context, in which they allow to keep large trucks from the city center, with strong environmental a dvantages . The aim of the paper is to review routing problems arising in City Logistics , in which multi - e chelon distribution systems are involved: the Two Echelon Location Routing Problem ( 2E - LRP) , the Two Echelon Vehicle Routing Problem (2E - VRP) and Truck and Trailer Routing Problem (TTRP), and to discuss literature on optimization methods, both exact and heuristic, developed to address these problems.
3539 3688 - PublicationSimulating the effects of pedestrianisation on urban freight deliveries(EUT Edizioni Università di Trieste, 2013)
;Muñuzuri, Jesús ;Cortés, Pablo ;Onieva, LuisGuadix, JoséThe city of Seville is currently developing a land - use reorganisation policy aimed at increasing the number of pedestrian spaces. This paper contains the microscopic simulation built to assess one of those pedestrianisation initiatives from the point of vi ew of its effects on traffic flows and, more specifically, freight deliveries. Two different alternatives are compared with the current scenario from the point of view of traffic congestion, parking space occupation and route times. Due to the complexity o f the freight delivery practices involved, the use of a standard traffic simulation package was not appropriate, and the simulations were carried out using the commercial package Arena, which enabled the representation of all that complexity with a spec ifi cally built simulation model .2016 1764 - PublicationTowards E(lectric)- urban freight: first promising steps in the electric vehicle revolution(EUT Edizioni Università di Trieste, 2013)
;van Duin, J.H.R ;Tavasszy, L.A.Quak, H.J.Innovative logistics service providers are currently looking for possibilities to introduce electric vehicles for goods distribution. As electrical vehicles still suffer from a limited operation range, the logistical process faces important challenges. In this research we advise on the composition of the electrical vehicle fleet and on the configuration of the service network, to achieve a successful implementation of electric vehicl es in the innercity of Amsterdam. A d ditional question in our research is whether the CO2 emission reduces at all or might even increase due to an increase of tripkilometres as a consequence of mileage constraint s by the bat teries . The aim of the implementation of the research is to determine the ideal fleet to transport a known demand of cargo, located at a central depot , to a known set of recipients using vehicles of varying types. The problem can be classified as a Fleet S ize and Mix Vehicle Routing Problem (FSMVRP). In addition to the regular constraints that apply to the regular FSMVRP, in our case also time windows apply to the cargo that needs to be transported (FSMVRPTW). The operation range of the vehicles is constrai ned by the battery capacity. We suggest modifications to existing formulations of the FSMVRPTW to make it suitable for the application on cases with electrical vehicles. We apply the model to create an optimal fleet configuration and the service routes. I n our research case of the Cargohopper in Amsterdam, the performance of alternative fleet compositions is determined for a variety of scenarios, to assess their robustness. The main uncertainties addressed in the scenarios are the cargo composition, the op eration range of the vehicles and their operation speed. Based on our research findings in Amsterdam we conclude that the current generation of electric vehicles as a part of urban cons olidation concept have the ability to perform urban freight transport efficiently (19% reduction in vehicle kilomet res ) and meanwhile have the capability to improve air quality and reduce CO 2 - emissions by 90% , and reduce noise nuisance in the in ner cities of our (future) towns.3617 3281 - PublicationUrban freight transport from a local authority perspective – a literature review(EUT Edizioni Università di Trieste, 2013)Lindholm, MariaOn the path towards sustainability for the urban area, local authorities make decisions that affect freight transport. However, in many ways, urban freight transport is a neglected issue. The purpose of this paper is to map out the current status of urban freight transport research from a local authority perspective. A literature review is performed, looking through research in urban freight transport during the last 15 years. The review presents a large amount of references and it is clear that the area of urban freight transport has gained a larger interest during the later part of the time period studied. Research mainly focuses on freight measures (pilot actions) performed in an urban context, but the local authority perspective is lacking in many aspect s. The review shows some areas that local authorities need to consider when working with freight transport in the urban area, according to the literature: measures; monitoring and evaluation; performance indicators; transfer of knowledge between cities/cou ntries; and, stakeholder involvement.
3130 4457 - PublicationUrban logistics solutions and financing mechanisms: a scenario assessment analysis(EUT Edizioni Università di Trieste, 2013)
;Gonzalez-Feliu, Jesus ;Basck, PierreMorganti, EleonoraT his paper presents the main issues related to the financing of urban logistics solutions , m ore precise ly to the contribution of economic analysis on strategic decision support related for urban logistics financing , focusing on cost benefit analysis. First we present the main funding strategies in urban economics, mainly in the field of urban logistics . Second we address the contribution of cost benefit analysis by recalling the main methodology and adapting it to urban logistics. Third we apply the method to the example of deploying a delivery spac e booking network, and illustrate the application via a set of three examples containing different situations and scenarios, which are presented , assessed and discussed . From the different simulations, it is observed that the way the system is financed has strong impacts on both its individual cost (for potential users) and its attractiveness.2200 1311