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Optimisation Du Reseau Des Routes Aeriennes En Europe
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Book Synopsis Optimisation du réseau des routes aériennes en Europe by : Vincent Letrouit
Download or read book Optimisation du réseau des routes aériennes en Europe written by Vincent Letrouit and published by . This book was released on 1998 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE RESEAU AERIEN ACTUEL EST COMPOSE D'UN ENSEMBLE DE SEGMENTS QUI S'INTERSECTENT EN DES POINTS PARTICULIERS DEFINIS PAR DES BALISES EMETTANT DES SIGNAUX A PARTIR DU SOL. CE RESEAU CONDUIT A UN EXCES DES DISTANCES PARCOURUES PAR LES AVIONS ESTIME A 8% EN EUROPE. OR IL EST DESORMAIS POSSIBLE GRACE AUX SYSTEMES DE TYPE GPS DE CONCEVOIR UN NOUVEAU RESEAU INDEPENDANT DE MOYENS AU SOL. DANS CES CONDITIONS, UN NOUVEAU RESEAU AERIEN POURRAIT INTEGRER D'UNE PART DES LIGNES AERIENNES EN LIGNE DROITE ENTRE LES AEROPORTS ET D'AUTRE PART LA POSSIBILITE DONNEE AUX AVIONS DE CHANGER DE NIVEAU UNE OU PLUSIEURS FOIS ENTRE L'ORIGINE ET LA DESTINATION EN DES POINTS PRE-DEFINIS, AFIN D'EVITER LES POINTS DE CONFLIT POTENTIEL. DANS CETTE THESE, NOUS PRESENTONS PRINCIPALEMENT DES PROBLEMES COMBINATOIRES SUR LES ENSEMBLES DE SEGMENTS, LIES A LA CONCEPTION D'UN RESEAU DE CE TYPE. NOUS PROPOSONS DES HEURISTIQUES POUR LE PROBLEME DE LA CLIQUE MAXIMUM, DE LA COLORATION, DE LA COLORATION AVEC N COULEURS D'UN ENSEMBLE DE SEGMENTS, ET UN ALGORITHME POUR LA COLORATION DES SEGMENTS PAR PORTION AVEC 2 COULEURS. NOUS PROPOSONS ENSUITE DES INDICATEURS TRES SIMPLIFIES NOUS PERMETTANT D'EVALUER FACILEMENT LA CHARGE DE L'ESPACE AERIEN ET LA QUANTITE DE CONFLITS GENEREES PAR LE DEPLACEMENT DES AVIONS SUR NOS RESEAUX. DANS CE CADRE, NOUS EFFECTUONS UNE MODELISATION DES RETARDS AU DECOLLAGE PAR UNE LOI LOG-NORMALE ET NOUS ADAPTONS UN MODELE DE CONFLIT EXISTANT. FINALEMENT, NOUS DONNONS DES RESULTATS SUR DES DONNEES REELLES DU TRAFIC AERIEN EUROPEEN REPRESENTANT JUSQU'A 50% DES FLUX.
Book Synopsis Optimisation des flux de trafic aérien by : David Gianazza
Download or read book Optimisation des flux de trafic aérien written by David Gianazza and published by . This book was released on 2004 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse s'inscrit dans le domaine de l'optimisation globale appliquée aux flux de trafic aérien. Le problème abordé consiste à optimiser les flux de trafic aérien sans imposer de retards au décollage. On considère tout d'abord le système existant tel quel, en cherchant à améliorer l'écoulement du trafic simplement en équilibrant les regroupements des secteurs élémentaires d'espace sur les positions de contrôle. Des méthodes déterministes (A*, Branch & bound) et un algorithme génétique sont utilisés pour répartir au mieux la charge de trafic entre les positions. Dans un deuxième temps on s'autorise a modifier la structure de l'espace aérien, en partant des flux directs origine-destination pour construire, par une méthode de partitionnement et une triangulation de Delaunay, un réseau de routes aériennes répondant à certains critères d'espacement des points de croisement. On évalue dans un troisième temps l'intérêt de séparer verticalement les flux aériens, dans leur phase de croisière. Cette évaluation porte sur le nombre et la nature des conflits détectés lors de simulations en temps accéléré, en allouant ou non des niveaux de croisières séparés. Dans un quatrième temps, on génère pour les principaux flux de trafic des trajectoires 3D complètes, séparées les unes des autres, en tenant compte de la disparité des performances des avions sur chaque flux. Deux types de stratégies sont explorées : une approche séquentielle où un algorithme A* est appliqué successivement à chaque flux dans un ordre choisi, et une approche globale où toutes les trajectoires sont considérées simultanément, en utilisant un algorithme génétique. Les algorithmes sont d'abord testés sur des cas simples avant d'être appliqués aux données réelles, en France et en Europe.Enfin, en dernier lieu, la dimension temporelle est prise en compte afin de planifier dynamiquement des trajectoires 4D non-conflictuelles pour des trains d'avions.
Download or read book Metaheuristics written by Patrick Siarry and published by Springer. This book was released on 2016-12-24 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metaheuristics exhibit desirable properties like simplicity, easy parallelizability, and ready applicability to different types of optimization problems. After a comprehensive introduction to the field, the contributed chapters in this book include explanations of the main metaheuristics techniques, including simulated annealing, tabu search, evolutionary algorithms, artificial ants, and particle swarms, followed by chapters that demonstrate their applications to problems such as multiobjective optimization, logistics, vehicle routing, and air traffic management. The authors are leading researchers in this domain, with considerable teaching and applications experience, and the book will be of value to industrial practitioners, graduate students, and research academics.
Download or read book 23rd DASC written by and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 2004 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hybrid Optimization Techniques by : Narendra Jussien
Download or read book Hybrid Optimization Techniques written by Narendra Jussien and published by . This book was released on 2004 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimisation de graphes sous contrainte géométrique by : Thomas Rivière (informaticien).)
Download or read book Optimisation de graphes sous contrainte géométrique written by Thomas Rivière (informaticien).) and published by . This book was released on 2006 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alors que le système de gestion du trafic aérien arrive à saturation, de nouveaux concepts sont étudiés afin de trouver une alternative. Cette thèse s'applique à vérifier la validité d'un de ces nouveaux concepts, le concept Sector-Less qui envisage un contrôle des aéronefs par flux, c'est-à-dire depuis leur aéroport de départ jusqu'à leur aéroport d'arrivée, par opposition au contrôle actuel effectué par zone géographique. La validation est faite à travers la construction et la validation d'un réseau de routes aériennes adapté à ce concept. La définition de ce nouveau réseau est donnée uniquement en fonction des contraintes imposées par le concept Sector-Less, sans utiliser de base préexistante. Ce réseau initial de routes est optimisé par deux méta heuristiques différentes, recuit simulé et algorithme génétique. Le processus d'optimisation vise à minimiser la longueur de la trajectoire pour chaque flux d'aéronefs. Il intègre en particulier des algorithmes dynamiques de calcul des plus courts chemins dans un graphe. Pour prendre en compte les capacités de navigation des aéronefs, deux techniques ont été utilisées pour intégrer au processus d'optimisation des contraintes géométriques [...]
Book Synopsis European Yearbook 1996 by : J. -P Chauvet
Download or read book European Yearbook 1996 written by J. -P Chauvet and published by Martinus Nijhoff Publishers. This book was released on 1998-12-01 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The "European Yearbook" promotes the scientific study of nineteen European supranational organisations, including the Organisation for Economic Co-operation and Development (OECD). Each volume contains a detailed survey of the history, structure and yearly activities of each organisation and an up-to-date chart providing a clear overview of the member states of each organisation. In addition, a number of articles on topics of general interest are included in each volume. A general index by subject and name, and a cumulative index of all the articles which have appeared in the "Yearbook," are included in every volume and provide direct access to the "Yearbook"'s subject matter. Each volume contains a comprehensive bibliography covering the year's relevant publications. This is an indispensable work of reference for anyone dealing with the European institutions.
Book Synopsis Machine Intelligence and Data Analytics for Sustainable Future Smart Cities by : Uttam Ghosh
Download or read book Machine Intelligence and Data Analytics for Sustainable Future Smart Cities written by Uttam Ghosh and published by Springer Nature. This book was released on 2021-05-31 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest advances in computational intelligence and data analytics for sustainable future smart cities. It focuses on computational intelligence and data analytics to bring together the smart city and sustainable city endeavors. It also discusses new models, practical solutions and technological advances related to the development and the transformation of cities through machine intelligence and big data models and techniques. This book is helpful for students and researchers as well as practitioners.
Book Synopsis L'Economie du transport aérien en Europe by : Henri Bouché
Download or read book L'Economie du transport aérien en Europe written by Henri Bouché and published by . This book was released on 1935 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis L'Economie du transport aérien en Europe by : Henri Bouché
Download or read book L'Economie du transport aérien en Europe written by Henri Bouché and published by . This book was released on 1933 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis L'Economie du transport aerien en Europe by :
Download or read book L'Economie du transport aerien en Europe written by and published by . This book was released on 1935 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Airline Network Development in Europe and Its Implications for Airport Planning by : Guillaume Burghouwt
Download or read book Airline Network Development in Europe and Its Implications for Airport Planning written by Guillaume Burghouwt and published by . This book was released on 2005 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Documents, Working Papers - Council of Europe, Parliamentary Assembly by : Council of Europe. Parliamentary Assembly
Download or read book Documents, Working Papers - Council of Europe, Parliamentary Assembly written by Council of Europe. Parliamentary Assembly and published by . This book was released on 1987 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Francis bibliographie géographique internationale by :
Download or read book Francis bibliographie géographique internationale written by and published by . This book was released on 1994 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :European Conference of Ministers of Transport Publisher :OECD Publishing ISBN 13 :9282113132 Total Pages :235 pages Book Rating :4.2/5 (821 download)
Book Synopsis Assessment and Decision Making for Sustainable Transport by : European Conference of Ministers of Transport
Download or read book Assessment and Decision Making for Sustainable Transport written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2004-03-10 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report makes recommendations for good practice bringing the results of economic appraisals and environmental assessments before decision makers in the transport sector on the basis of reviews of recent experience in infrastructure planning and policy development in seven countries.
Book Synopsis Cliques, Coloring, and Satisfiability by : David S. Johnson
Download or read book Cliques, Coloring, and Satisfiability written by David S. Johnson and published by American Mathematical Soc.. This book was released on 1996-01-01 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of a DIMACS Challenge is to encourage and coordinate research in the experimental analysis of algorithms. The First DIMACS Challenge encouraged experimental work in the area of network flow and matchings. This Second DIMACS Challenge, on which this volume is based, took place in conjunction with the DIMACS Special Year on Combinatorial Optimization. Addressed here are three difficult combinatorial optimization problems: finding cliques in a graph, colouring the vertices of a graph, and solving instances of the satisfiability problem. These problems were chosen both for their practical interest and because of their theoretical intractability.
Book Synopsis Mathematical Programming by : Michel Minoux
Download or read book Mathematical Programming written by Michel Minoux and published by John Wiley & Sons. This book was released on 1986 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive work covers the whole field of mathematical programming, including linear programming, unconstrained and constrained nonlinear programming, nondifferentiable (or nonsmooth) optimization, integer programming, large scale systems optimization, dynamic programming, and optimization in infinite dimensions. Special emphasis is placed on unifying concepts such as point-to-set maps, saddle points and perturbations functions, duality theory and its extensions.
