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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Kerbiriou, Ronan;

    International audience; In order to adapt to structural changes in world trade, container ship owners have developed their transport services. Thus, the unit transport capacity of container ships has been multiplied by 3 in the space of 20 years. The maritime transport of containers has developed very speedily and there have been changes in thestrategies of shipping companies.These giants of the seas, put into service on the maritime trades linking the worldʹs main production andconsumption markets, have led to the repositioning of ships on secondary maritime spaces. This is known ascascading. The objective of this paper is to study the impacts on the ports and the maritime network of the BalticSea. For this purpose, we will carry out an analysis of the evolution of container ship calls from 2012 to 2020(number of calls, capacity offered in calls, ...) followed by a graph analysis to study the evolution of the maritime network.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ TransNav: Internatio...arrow_drop_down
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  • Authors: Daniel, Nicolas; Kraiem, Youcef; Abbes, Dhaker; Abdel, Aitouche;

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  • Authors: Piet, Laurent; Vangu, Jonathan; Billard, Gerald; Charpentier, Stanislas; +2 Authors

    International audience; The opening of a transport infrastructure such as the BPL high-speed railway may have a negative impact on residential real estate prices in non-urban areas. The noise and visual nuisance caused by train traffic could lead to a fall in the value of property in these areas, which do not benefit directly from the advantages offered by the line in terms of reduced transport times and costs, or an increase in the attractiveness of the areas around the stations it serves. Two methods for measuring treatment effects have been applied to data from the ‘Demandes de valeurs foncières’ (DVF) over the period 2014-2020 to measure the impact of the opening of the line on the sale price per m² of built area of private homes located in rural and peri-urban areas in the three ‘départements’ affected by the LGV BPL, namely Ille-et-Vilaine, Mayenne and Sarthe. The difference-in-differences (DID) method estimates a negative impact of around €21/m² of built area, while the propensity score matching (PSM) method estimates an equally negative impact of around €54/m². In relative terms, these effects represent between 1% and 3% of the sale price at which the houses concerned could theoretically have been sold if the line had not been built. While this effect may seem limited, it does not represent the overall effect of the line, as the potential impact due to the construction of the infrastructure itself cannot be estimated due to a lack of available data.; La mise en service d’une infrastructure de transport comme la ligne à grande vitesse Bretagne-Pays-de-la-Loire (LGV BPL) peut avoir un impact a priori négatif sur le prix de l’immobilier résidentiel en milieu non urbain. Les nuisances sonores et visuelles que génère la circulation des trains peuvent en effet conduire à une dévalorisation des biens situés dans ces zones qui, a contrario, ne bénéficient pas directement des bénéfices apportés par la ligne en matière de réduction des temps et coûts de transport ou d’augmentation de l’attractivité des quartiers de gares desservies. Deux méthodes dites de mesure des effets de traitement ont ainsi été appliquées aux données des Demandes de valeurs foncières (DVF) sur la période 2014-2020 pour mesurer l’impact de la mise en service de la ligne sur le prix de vente au m² de bâti des maisons individuelles situées dans les zones rurales et péri-urbaines des trois départements concernés par la LGV BPL, l’Ille-et-Vilaine, la Mayenne et la Sarthe. La méthode de différence de différences (DID) conduit à estimer un impact négatif d’environ 21 €/m² de bâti, alors que celle d’appariement sur le score de propension (PSM) conduit à estimer un impact également négatif d’environ 54 €/m². Ramenés en valeurs relatives, ces effets représentent entre 1 et 3% du prix de vente auquel les maisons concernées auraient théoriquement pu être vendues en l’absence de mise en service de la ligne. Si cet effet peut sembler limité, il ne représente néanmoins pas l’effet global de la ligne, l’impact potentiel dû à la construction de l’infrastructure elle-même ne pouvant pas être estimé faute de données disponibles.

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: I. Maidaneh Abdi; I. Maidaneh Abdi; A. Le Guilcher; A.-M. Olteanu-Raimond;

    Abstract. To evaluate the quality of OSM data, similarities between OSM features and their homologous features represented in a reference database are relevant metrics. However, reference databases do not exist everywhere or are not freely available. Thus, having data quality assessment methods that rely only on intrinsic indicators (i.e. based on data itself without considering external information) would be useful in these cases. This article specifically uses the radial distance as a target quality metric to measure the quality of shapes. Its aim is to build a random-forest based classification method that reconstructs whether this distance is higher or lower than a specified threshold, using only intrinsic indicators as inputs. The classification algorithm is evaluated on a first dataset by computing the ROC (Receiver Operating Characteristic) curve and using the AUC (Area Under Curve) as an evaluation metric. The transferability of the resulting algorithm is then evaluated by measuring its performance on a second, distinct dataset. The experiments show that the algorithm performs reasonably well on both the initial and the second dataset, and that intrinsic indicators give relevant information to infer comparison-based shape quality (i.e. the radial distance).

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ ISPRS Annals of the ...arrow_drop_down
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ ISPRS Annals of the ...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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  • Authors: Alves, Michel Willian; Aloise, Dario José; Santos, Andréa Cynthia; Fontes, Fábio Francisco da Costa;

    International audience; The production of waste is a major issue for cities, and the lack of a proper treatment can cause serious environmental consequences such as soil, air, and water pollution. Although selective collection can bring environmental and economic benefits, in practices, it is not always done efficiently and it is still performed with high operating costs. This study aims at proposing heuristics approaches to the problem of selective waste collection in urban centers, considering it as a capacitated arc routing problem with gains and multi-compartment vehicles. For such a purpose, a Hill-Climbing heuristic is used to generate an initial solution. In addition, two versions of the Iterated Local Search metaheuristic are also proposed. Computational tests were performed on instances obtained and adapted from the literature.

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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Pongnot, Gaël; Mayet, Clement; Labrousse, Denis;

    International audience; This paper deals with the improvement of energy recovery in a battery electric vehicle (BEV) using a cascaded Hbridge inverter with integrated battery cells (CHB-IB). Different braking strategies are defined based on the power map of the overall traction system. These strategies are simulated on a specific driving cycle. The results are compared to select the best strategies in terms of energy consumption.; Cet article traite de l'amélioration de la récupération d'énergie dans un véhicule électrique à batterie (BEV) à l'aide d'un onduleur à pont en cascade avec des cellules de batterie intégrées (CHB-IB). Différentes stratégies de freinage sont définies sur la base de la carte de puissance du système de traction global. Ces stratégies sont simulées sur un cycle de conduite spécifique. Les résultats sont comparés pour sélectionner les meilleures stratégies en termes de consommation d'énergie.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao https://doi.org/10.1...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    https://doi.org/10.1109/vppc60...
    Conference object . 2023 . Peer-reviewed
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao https://doi.org/10.1...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      https://doi.org/10.1109/vppc60...
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  • Authors: Khemmar, Redouane; Mauri, Antoine; Evain, Alexandre; Garnier, Francois; +9 Authors

    A robust visual understanding of complex urban environments using passive optical sensors is an onerous and essential task for autonomous navigation. The problem is heavily characterized by the quality of the available dataset and the number of instances it includes. Regardless of the benchmark results of perception algorithms, a model would only be reliable and capable of enhanced decision making if the dataset covers the exact domain of the end-use case. For this purpose, in order to improve the level of instances in datasets used for the training and validation of Autonomous Vehicles (AV), Advanced Driver Assistance Systems (ADAS), and autonomous driving, and to reduce the void due to the no-existence of any datasets in the context of railway smart mobility, we introduce our multimodal hybrid dataset called ESRORAD. ESRORAD is comprised of 34 videos, 2.7 k virtual images, and 100 k real images for both road and railway scenes collected in two Normandy towns, Rouen and Le Havre. All the images are annotated with 3D bounding boxes showing at least three different classes of persons, cars, and bicycles. Crucially, our dataset is the first of its kind with uncompromised efforts on being the best in terms of large volume, abundance in annotation, and diversity in scenes. Our escorting study provides an in-depth analysis of the dataset’s characteristics as well as a performance evaluation with various state-of-the-art models trained under other popular datasets, namely, KITTI and NUScenes. Some examples of image annotations and the prediction results of our 3D object detection lightweight algorithms are available in ESRORAD dataset. Finally, the dataset is available online. This repository consists of 52 datasets with their respective annotations performed.

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  • Authors: Gharbia, Ibtihel, Ben; de Nunzio, Giovanni; Sciarretta, Antonio;

    The rapid growth of electric vehicles (EVs) has brought about the need for an efficient and effective charging infrastructure network. Optimal placement of charging infrastructure plays a crucial role in ensuring the widespread adoption and seamless integration of EVs into the existing transportation system. In this work, a new placement method is proposed with the goal of optimizing trip time for all the long-distance nationwide journeys. The first step of the strategy consists in identifying the ideal location of charging stations based on an optimal routing strategy with charging constraints. Then, a clustering-based heuristic, which also accounts for real travel demand, is proposed to select the best charging stations among these candidate locations. We apply the method to the French national charging infrastructure and we show that important gains in terms of overall trip time and energy consumption are attainable with respect to the current infrastructure. Finally, the proposed method is used to give a recommendation on where to install the future charging stations in order to maximize their positive impact.

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  • Authors: Coviello, Nicola; Medeossi, Giorgio; Nygreen, Thomas; Pellegrini, Paola; +1 Authors

    International audience; This paper presents an algorithmic framework for automatic railway timetabling, developed within the project "Tools for mathematical optimization of strategic railway timetable models" funded by the Norwegian Railway Directorate (Jernbanedirektoratet). It describes the algorithmic core of the developed tool, called Automatic Timetabler with Multiple Objectives. The framework integrates a Multi-Objective Ant Colony Optimization (MOACO) algorithm and a Mixed Integer Linear Programming (MILP) formulation. MOACO performs a fast-but-coarse exploration of the solution space, populating and maintaining an approximated Pareto optimal set of timetables. The timetables generated by MOACO are refined by the MILP formulation, exploring a neighborhood of the input solution and returning feasible, high-quality timetables. The tool is assessed on case studies driven from real practice in Norway.

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  • Authors: Kerbiriou, Ronan;

    Maritime transport, and more specifically containerised transport, is the heart and soul of our globalised economies. Since its invention, containerised maritime transport has undergone numerous structural and organisational changes. In particular, the sector experienced a spectacular boom in the 2010s when shipowners decided to stop using the Panama Canal. From then on, there was no longer any obstacle to the construction of larger ships. The size of container ships has doubled in the space of 10 years to reach a carrying capacity of 24,000 TEU for the Megamax 24 class. This structural evolution of container ships has led to changes in the world's containerised maritime networks and thus to impacts on the different maritime spaces.In this presentation, after presenting the evolution of the container ship fleets, we will study the impact on the maritime network within the Mediterranean Sea and on the ports of call in this sea. We will approach the subject from the angle of direct inter-port relations before zooming in on the strategies of global carriers in their choice of ports of call and service offers.To carry out these various analyses, we use the AIS signals emitted by the ships, which we cross-reference with a database of ships from IHS Fairplay. This database provides us with information on the technical characteristics of the ships. We will make a comparison between the years 2012 and 2022.

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Kerbiriou, Ronan;

    International audience; In order to adapt to structural changes in world trade, container ship owners have developed their transport services. Thus, the unit transport capacity of container ships has been multiplied by 3 in the space of 20 years. The maritime transport of containers has developed very speedily and there have been changes in thestrategies of shipping companies.These giants of the seas, put into service on the maritime trades linking the worldʹs main production andconsumption markets, have led to the repositioning of ships on secondary maritime spaces. This is known ascascading. The objective of this paper is to study the impacts on the ports and the maritime network of the BalticSea. For this purpose, we will carry out an analysis of the evolution of container ship calls from 2012 to 2020(number of calls, capacity offered in calls, ...) followed by a graph analysis to study the evolution of the maritime network.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ TransNav: Internatio...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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  • Authors: Daniel, Nicolas; Kraiem, Youcef; Abbes, Dhaker; Abdel, Aitouche;

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  • Authors: Piet, Laurent; Vangu, Jonathan; Billard, Gerald; Charpentier, Stanislas; +2 Authors

    International audience; The opening of a transport infrastructure such as the BPL high-speed railway may have a negative impact on residential real estate prices in non-urban areas. The noise and visual nuisance caused by train traffic could lead to a fall in the value of property in these areas, which do not benefit directly from the advantages offered by the line in terms of reduced transport times and costs, or an increase in the attractiveness of the areas around the stations it serves. Two methods for measuring treatment effects have been applied to data from the ‘Demandes de valeurs foncières’ (DVF) over the period 2014-2020 to measure the impact of the opening of the line on the sale price per m² of built area of private homes located in rural and peri-urban areas in the three ‘départements’ affected by the LGV BPL, namely Ille-et-Vilaine, Mayenne and Sarthe. The difference-in-differences (DID) method estimates a negative impact of around €21/m² of built area, while the propensity score matching (PSM) method estimates an equally negative impact of around €54/m². In relative terms, these effects represent between 1% and 3% of the sale price at which the houses concerned could theoretically have been sold if the line had not been built. While this effect may seem limited, it does not represent the overall effect of the line, as the potential impact due to the construction of the infrastructure itself cannot be estimated due to a lack of available data.; La mise en service d’une infrastructure de transport comme la ligne à grande vitesse Bretagne-Pays-de-la-Loire (LGV BPL) peut avoir un impact a priori négatif sur le prix de l’immobilier résidentiel en milieu non urbain. Les nuisances sonores et visuelles que génère la circulation des trains peuvent en effet conduire à une dévalorisation des biens situés dans ces zones qui, a contrario, ne bénéficient pas directement des bénéfices apportés par la ligne en matière de réduction des temps et coûts de transport ou d’augmentation de l’attractivité des quartiers de gares desservies. Deux méthodes dites de mesure des effets de traitement ont ainsi été appliquées aux données des Demandes de valeurs foncières (DVF) sur la période 2014-2020 pour mesurer l’impact de la mise en service de la ligne sur le prix de vente au m² de bâti des maisons individuelles situées dans les zones rurales et péri-urbaines des trois départements concernés par la LGV BPL, l’Ille-et-Vilaine, la Mayenne et la Sarthe. La méthode de différence de différences (DID) conduit à estimer un impact négatif d’environ 21 €/m² de bâti, alors que celle d’appariement sur le score de propension (PSM) conduit à estimer un impact également négatif d’environ 54 €/m². Ramenés en valeurs relatives, ces effets représentent entre 1 et 3% du prix de vente auquel les maisons concernées auraient théoriquement pu être vendues en l’absence de mise en service de la ligne. Si cet effet peut sembler limité, il ne représente néanmoins pas l’effet global de la ligne, l’impact potentiel dû à la construction de l’infrastructure elle-même ne pouvant pas être estimé faute de données disponibles.

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: I. Maidaneh Abdi; I. Maidaneh Abdi; A. Le Guilcher; A.-M. Olteanu-Raimond;

    Abstract. To evaluate the quality of OSM data, similarities between OSM features and their homologous features represented in a reference database are relevant metrics. However, reference databases do not exist everywhere or are not freely available. Thus, having data quality assessment methods that rely only on intrinsic indicators (i.e. based on data itself without considering external information) would be useful in these cases. This article specifically uses the radial distance as a target quality metric to measure the quality of shapes. Its aim is to build a random-forest based classification method that reconstructs whether this distance is higher or lower than a specified threshold, using only intrinsic indicators as inputs. The classification algorithm is evaluated on a first dataset by computing the ROC (Receiver Operating Characteristic) curve and using the AUC (Area Under Curve) as an evaluation metric. The transferability of the resulting algorithm is then evaluated by measuring its performance on a second, distinct dataset. The experiments show that the algorithm performs reasonably well on both the initial and the second dataset, and that intrinsic indicators give relevant information to infer comparison-based shape quality (i.e. the radial distance).

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ ISPRS Annals of the ...arrow_drop_down
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ ISPRS Annals of the ...arrow_drop_down
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  • Authors: Alves, Michel Willian; Aloise, Dario José; Santos, Andréa Cynthia; Fontes, Fábio Francisco da Costa;

    International audience; The production of waste is a major issue for cities, and the lack of a proper treatment can cause serious environmental consequences such as soil, air, and water pollution. Although selective collection can bring environmental and economic benefits, in practices, it is not always done efficiently and it is still performed with high operating costs. This study aims at proposing heuristics approaches to the problem of selective waste collection in urban centers, considering it as a capacitated arc routing problem with gains and multi-compartment vehicles. For such a purpose, a Hill-Climbing heuristic is used to generate an initial solution. In addition, two versions of the Iterated Local Search metaheuristic are also proposed. Computational tests were performed on instances obtained and adapted from the literature.

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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Pongnot, Gaël; Mayet, Clement; Labrousse, Denis;

    International audience; This paper deals with the improvement of energy recovery in a battery electric vehicle (BEV) using a cascaded Hbridge inverter with integrated battery cells (CHB-IB). Different braking strategies are defined based on the power map of the overall traction system. These strategies are simulated on a specific driving cycle. The results are compared to select the best strategies in terms of energy consumption.; Cet article traite de l'amélioration de la récupération d'énergie dans un véhicule électrique à batterie (BEV) à l'aide d'un onduleur à pont en cascade avec des cellules de batterie intégrées (CHB-IB). Différentes stratégies de freinage sont définies sur la base de la carte de puissance du système de traction global. Ces stratégies sont simulées sur un cycle de conduite spécifique. Les résultats sont comparés pour sélectionner les meilleures stratégies en termes de consommation d'énergie.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao https://doi.org/10.1...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    https://doi.org/10.1109/vppc60...
    Conference object . 2023 . Peer-reviewed
    License: STM Policy #29
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao https://doi.org/10.1...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      https://doi.org/10.1109/vppc60...
      Conference object . 2023 . Peer-reviewed
      License: STM Policy #29
      Data sources: Crossref
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  • Authors: Khemmar, Redouane; Mauri, Antoine; Evain, Alexandre; Garnier, Francois; +9 Authors

    A robust visual understanding of complex urban environments using passive optical sensors is an onerous and essential task for autonomous navigation. The problem is heavily characterized by the quality of the available dataset and the number of instances it includes. Regardless of the benchmark results of perception algorithms, a model would only be reliable and capable of enhanced decision making if the dataset covers the exact domain of the end-use case. For this purpose, in order to improve the level of instances in datasets used for the training and validation of Autonomous Vehicles (AV), Advanced Driver Assistance Systems (ADAS), and autonomous driving, and to reduce the void due to the no-existence of any datasets in the context of railway smart mobility, we introduce our multimodal hybrid dataset called ESRORAD. ESRORAD is comprised of 34 videos, 2.7 k virtual images, and 100 k real images for both road and railway scenes collected in two Normandy towns, Rouen and Le Havre. All the images are annotated with 3D bounding boxes showing at least three different classes of persons, cars, and bicycles. Crucially, our dataset is the first of its kind with uncompromised efforts on being the best in terms of large volume, abundance in annotation, and diversity in scenes. Our escorting study provides an in-depth analysis of the dataset’s characteristics as well as a performance evaluation with various state-of-the-art models trained under other popular datasets, namely, KITTI and NUScenes. Some examples of image annotations and the prediction results of our 3D object detection lightweight algorithms are available in ESRORAD dataset. Finally, the dataset is available online. This repository consists of 52 datasets with their respective annotations performed.

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  • Authors: Gharbia, Ibtihel, Ben; de Nunzio, Giovanni; Sciarretta, Antonio;

    The rapid growth of electric vehicles (EVs) has brought about the need for an efficient and effective charging infrastructure network. Optimal placement of charging infrastructure plays a crucial role in ensuring the widespread adoption and seamless integration of EVs into the existing transportation system. In this work, a new placement method is proposed with the goal of optimizing trip time for all the long-distance nationwide journeys. The first step of the strategy consists in identifying the ideal location of charging stations based on an optimal routing strategy with charging constraints. Then, a clustering-based heuristic, which also accounts for real travel demand, is proposed to select the best charging stations among these candidate locations. We apply the method to the French national charging infrastructure and we show that important gains in terms of overall trip time and energy consumption are attainable with respect to the current infrastructure. Finally, the proposed method is used to give a recommendation on where to install the future charging stations in order to maximize their positive impact.

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  • Authors: Coviello, Nicola; Medeossi, Giorgio; Nygreen, Thomas; Pellegrini, Paola; +1 Authors

    International audience; This paper presents an algorithmic framework for automatic railway timetabling, developed within the project "Tools for mathematical optimization of strategic railway timetable models" funded by the Norwegian Railway Directorate (Jernbanedirektoratet). It describes the algorithmic core of the developed tool, called Automatic Timetabler with Multiple Objectives. The framework integrates a Multi-Objective Ant Colony Optimization (MOACO) algorithm and a Mixed Integer Linear Programming (MILP) formulation. MOACO performs a fast-but-coarse exploration of the solution space, populating and maintaining an approximated Pareto optimal set of timetables. The timetables generated by MOACO are refined by the MILP formulation, exploring a neighborhood of the input solution and returning feasible, high-quality timetables. The tool is assessed on case studies driven from real practice in Norway.

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  • Authors: Kerbiriou, Ronan;

    Maritime transport, and more specifically containerised transport, is the heart and soul of our globalised economies. Since its invention, containerised maritime transport has undergone numerous structural and organisational changes. In particular, the sector experienced a spectacular boom in the 2010s when shipowners decided to stop using the Panama Canal. From then on, there was no longer any obstacle to the construction of larger ships. The size of container ships has doubled in the space of 10 years to reach a carrying capacity of 24,000 TEU for the Megamax 24 class. This structural evolution of container ships has led to changes in the world's containerised maritime networks and thus to impacts on the different maritime spaces.In this presentation, after presenting the evolution of the container ship fleets, we will study the impact on the maritime network within the Mediterranean Sea and on the ports of call in this sea. We will approach the subject from the angle of direct inter-port relations before zooming in on the strategies of global carriers in their choice of ports of call and service offers.To carry out these various analyses, we use the AIS signals emitted by the ships, which we cross-reference with a database of ships from IHS Fairplay. This database provides us with information on the technical characteristics of the ships. We will make a comparison between the years 2012 and 2022.

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