Download or read book Commande d un systeme de trafic autoroutier application au boulevard peripherique de Paris written by Neila Bhouri and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book COMMANDE D UN SYSTEME DE TRAFIC AUTOROUTIER APPLICATION AU BOULEVARD PERIPHERIQUE DE PARIS written by NEILA.. BHOURI and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DEUX ALGORITHMES D'OPTIMISATION FONDES SUR LE PRINCIPE DU MAXIMUM SONT DEVELOPPES POUR REGULER LE TRAFIC SUR UNE DES AUTOROUTES PREIURBAINES. ILS SOUS-TENDENT DEUX STRATEGIES DE CONTROLE COORDONNE DES ACCES. CELLES-CI SONT APPLIQUEES EN SIMULATION AU BOULEVARD PERIPHERIQUE DE PARIS QUI EST UNE AUTOROUTE CIRCULAIRE DE 35 KM DE LONGUEUR, POSSEDANT 35 ENTREES ET 36 SORTIES. DANS UN BUT DE COMPARAISON, UNE TROISIEME STRATEGIE, LOCALE, A EGALEMENT ETE APPLIQUEE AU BOULEVARD PERIPHERIQUE. VU LA DIMENSION DU PROBLEME ET L'IMPORTANCE DU TEMPS DE CALCUL, LA PREMIERE STRATEGIE EST UNE COMMANDE HIERARCHISEE A DEUX NIVEAUX. AU PREMIER NIVEAU, LA COMMANDE OPTIMALE EST DETERMINEE POUR UN SYSTEME AGREGE: L'ALGORITHME D'OPTIMISATION EST DEVELOPPE SUR LA BASE D'UN MODELE NON-LINEAIRE OBTENU PAR SIMPLIFICATION D'UN MODELE MACROSCOPIQUE ASSEZ PRECIS (META). LES INTERVALLES D'ECHANTILLONNAGE SPATIAL ET TEMPOREL SONT DE 3 KM/60 S. AU SECOND NIVEAU, UNE DESAGREGATION DU DEBIT OPTIMAL OBTENU AU PREMIER, EST EFFECTUEE. AFIN D'OBTENIR UNE STRATEGIE PLUS PERFORMANTE QUI PEUT ETRE UTILISEE POUR DEFINIR UN CONTROLE FIXE, LA DEUXIEME STRATEGIE EST DEVELOPPEE SUR LA BASE DU MODELE META. LES INTERVALLES D'ECHANTILLONNAGE SPATIAL ET TEMPOREL SONT DE 500 M/10 S. POUR LES DEUX ALGORITHMES LES LIMITES EXISTANT SUR LES VARIABLES SONT EXPRIMEES PAR DES CONTRAINTES NON LINEAIRES D'EGALITE ET D'INEGALITE. LA TECHNIQUE DU GRADIENT CONJUGUEE A ETE UTILISEE
Download or read book Handbook of Transportation Science written by Randolph Hall and published by Springer Science & Business Media. This book was released on 1999-09-30 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past thirty-five years, a tremendous body of both theoretical and empirical research has been established on the `science of transportation'. The Handbook of Transportation Science has collected and synthesized this research into a systematic treatment of this field covering its fundamental concepts, methods, and principles. The purpose of this handbook is to define transportation as a scientific discipline that transcends transportation technology and methods. Whether by car, truck, airplane - or by a mode of transportation that has not yet been conceived - transportation obeys fundamental properties. The science of transportation defines these properties, and demonstrates how our knowledge of one mode of transportation can be used to explain the behavior of another. Transportation scientists are motivated by the desire to explain spatial interactions that result in movement of people or objects from place to place. Its methodologies draw from physics, operations research, probability and control theory. It is fundamentally a quantitative discipline, relying on mathematical models and optimization algorithms to explain the phenomena of transportation. The fourteen chapters in the handbook are written by the leading researchers in transportation science in an effort to define and categorize for the first time the scientific nature and state of the art of the field. As such, it is directed to the broader research community, transportation practitioners, and future transportation scientists.
Download or read book Control Applications of Optimization 2000 CAO 2000 written by Valeriĭ Nikolaevich Zakharov and published by Pergamon. This book was released on 2000 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Proceedings contains the papers presented at the 11th IFAC Workshop on Control Applications of Optimization held at Saint Petersburg State University, Saint Petersburg, Russia on 3-6 July 2000. It was the 11th IFAC workshop of the Control Applications of Optimization series. It explored current mathematical and engineering problems. The range of the topics discussed included (but was not restricted to): optimal control control design, control processed and stability, optimal damping and oscillation, games and stochastic control, estimation and identification, numerical methods, control applications, robust control, nonlinear systems.
Download or read book Large Scale Systems written by F. G. Filip and published by Pergamon. This book was released on 2002 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the papers presented at the 9th IFAC Symposium on Large Scale Systems: Theory and Applications (LSS 2001), held in Bucharest, Romania, 18-20 July 2001. Its aim was to address the control aspects of those industrial, economic, social and environmental systems whose characteristics are high dimensionality, non-linearity and uncertainty, associated with a multitude of structural forms, with intense and time critical information exchange and efficient co-ordination. The symposium covered all major aspects of large scale, complex systems including methodological aspects, technological solutions and practical applications. methodological aspects and those devoted to practical applications. Several invited sessions were organised, including papers from leading world experts. The papers are ordered in accordance with the technical sessions. Session topics include methodology and application fields, traditional to this Symposium series. Topics covered include the following: modelling and model reduction; decentralized control and estimation; hierarchical control; intelligent and fuzzy control; nonlinear dynamics in complex systems; complex systems theory and analysis; water, gas, power systems; large scale CIMs and production planning and scheduling; communication and information systems; transportation systems; modelling and control of wastewater treatment plants and societal systems modelling, planning and management. technical programme, such as decision support systems and risk and governance in large-scale systems. More recent issues, such as risk management and human decision in large-scale systems, were well received by the symposium participants and provide an extra dimension to volume.
Download or read book Commande Non Entiere Application Pour Les Modeles de Trafic Routier written by Milka Uzunova and published by Omniscriptum. This book was released on 2018-02-28 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le travail dans ce manuscrit s'articule autours de plusieurs éléments d'études concernant les modèles macroscopiques de flux de trafic routier à savoir la modélisation, la simulation et la commande.L'objectif consiste à atteindre ou à maintenir une circulation fluide sur les voies rapides.Il s'agit donc de s'assurer que le processus de flux de trafic routier reste dans des limites de stabilité et tout en offrant les meilleures qualités de service aux usagers.On propose une démarche qui repose sur l'analyse de la solution analytique afin d'obtenir une fonction de transfert.Le modèle retenu est un modèle macroscopique de trafic du type LWR, en aval d'un péage routier.Les recherches sont orientées aussi dans le domaine de la commande des flux de trafic et le choix d'une stratégie qui satisfait les besoin des usagers.Le besoin de faire le contrôle des axes routier était provoqué par la croissance des flux et la saturation des voies de circulation.C'est la cause de l'apparition de congestions aux heures de pointe et des retards dans les déplacements.Il est nécessaire de garantir la fluidité du trafic routier par l'implémentation de stratégies de commande
Download or read book Contribution la commande du flux de trafic autoroutier written by Vesela Dryankova and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les avancées technologiques, dues à l'avènement des nouvelles technologies d'information etde communication, ont donné naissance au concept des Systèmes de Transport Intelligents (STI).Les objectifs de telles applications consistent à apporter des solutions efficaces pour faire face auxproblèmes quotidiens des phénomènes de congestion. L'importance ainsi que les enjeux socioéconomiquesposés par les congestions imposent d'introduire des solutions innovantes utilisantles avancées récentes dans le domaine de la commande. Les travaux présentés dans cette thèse sesituent dans le cadre des STI et traitent des problèmes de la commande du trafic autoroutier et surles Voies Rapides Urbaines (VRU). Parmi les techniques de commande utilisée, nos travaux se focalisentprincipalement sur le contrôle d'accès isolé. L'objectif d'une telle action de régulation estd'agir sur le débit des rampes d'entrée, via des feux de signalisation, afin de maintenir la densitésur la voie principale aux alentours d'un seuil critique permettant ainsi, une utilisation optimale del'infrastructure autoroutière ou des VRU. L'algorithme proposé repose sur l'utilisation conjointede la platitude différentielle et le concept de la commande par mode glissant d'ordre supérieur. Laprincipale caractéristique de la platitude réside dans sa capacité à assurer une génération de trajectoiressans intégration d'aucune équation différentielle du modèle étudié. L'intérêt de la commandepar mode glissant d'ordre supérieur est de permettre le suivi de trajectoires d'une manière robustemême en présence d'incertitudes et de perturbations typiques aux systèmes de trafic. La pertinencede l'approche proposée est validée via un ensemble de simulations avec des données réelles d'uneportion de l'autoroute A6 du périphérique de Paris. De plus, la validation a été enrichie par l'évaluationde performances basée sur des critères couramment utilisés par les exploitants. L'ensembledes résultats ouvre la voie à plusieurs perspectives d'amélioration et de généralisation de cettecommande à des réseaux routiers plus complexes.
Download or read book 2000 IEEE Intelligent Transportation Systems Conference Proceedings written by IEEE Electron Devices Society and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 2000 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text on intelligent transportation systems covers topics such as sensors, communications, simulation, man-machine interfaces, control, decision systems, information systems, computers, reliability and quality assurance, and navigation and guidance systems.
Download or read book Preprints written by and published by . This book was released on 1970 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Transportation Science written by Randolph Hall and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 737 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past thirty-five years, a substantial amount of theoretical and empirical scholarly research has been developed across the discipline domains of Transportation. This research has been synthesized into a systematic handbook that examines the scientific concepts, methods, and principles of this growing and evolving field. The Handbook of Transportation Science outlines the field of transportation as a scientific discipline that transcends transportation technology and methods. Whether by car, truck, airplane - or by a mode of transportation that has not yet been conceived - transportation obeys fundamental properties. The science of transportation defines these properties, and demonstrates how our knowledge of one mode of transportation can be used to explain the behavior of another. Transportation scientists are motivated by the desire to explain spatial interactions that result in movement of people or objects from place to place. Its methodologies draw from physics, operations research, probability and control theory.
Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.
Download or read book Concise Encyclopedia of Traffic and Transportation Systems written by M. Papageorgiou and published by Pergamon. This book was released on 1991-06-21 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The vast expansion of transportation systems on land, sea and in the air throughout the twentieth century has allowed for the development of economic, social and political connections across the globe undreamed of by our ancestors. However, this expansion has brought with it familiar problems such as airport delays and gridlock in our major cities. Fortunately, parallel progress in system science and information technology can provide us with the appropriate tools for rational and efficient solutions to our exponentially increasing transportation demands. This encyclopedia addresses the analysis, modelling and control of today's and tomorrow's traffic and transportation systems in a concise, comprehensive single volume. Well over 100 articles have been specially commissioned, or revised from the acclaimed Systems & Control Encyclopedia, to provide an overview of and first reference to models, control methods and practical aspects of all forms of traffic and transportation systems with a particular emphasis on efficient utilization of available infrastructure, plus a consideration of their historical, organizational, economic and social impacts. The Concise Encyclopedia of Traffic & Transportation Systems will be essential for professional and academic scientists and engineers in any discipline concerned with the movement of people and materials."--Book description, Amazon.com.
Download or read book Reliability and Statistics in Transportation and Communication written by Igor Kabashkin and published by Springer. This book was released on 2019-03-09 with total page 821 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on cutting-edge theories and methods for analyzing complex systems, such as transportation and communication networks and discusses multi-disciplinary approaches to dependability problems encountered when dealing with complex systems in practice. The book presents the most noteworthy methods and results discussed at the International Conference on Reliability and Statistics in Transportation and Communication (RelStat), which took place in Riga, Latvia on October 17 – 20, 2018. It spans a broad spectrum of topics, from mathematical models and design methodologies, to software engineering, data security and financial issues, as well as practical problems in technical systems, such as transportation and telecommunications, and in engineering education.
Download or read book Traffic Theory written by Denos C. Gazis and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Everything should be made as simple as possible—but not simpler” Albert Einstein Traffic Theory, like all other sciences, aims at understanding and improving a physical phenomenon. The phenomenon addressed by Traffic Theory is, of course, automobile traffic, and the problems associated with it such as traffic congestion. But what causes congestion? Some time in the 1970s, Doxiades coined the term "oikomenopolis" (and "oikistics") to describe the world as man's living space. In Doxiades' terms, persons are associated with a living space around them, which describes the range that they can cover through personal presence. In the days of old, when the movement of people was limited to walking, an individual oikomenopolis did not intersect many others. The automobile changed all that. The term "range of good" was also coined to describe the maximal distance a person can and is willing to go in order to do something useful or buy something. Traffic congestion is caused by the intersection of a multitude of such "ranges of good" of many people exercising their range utilisation at the same time. Urban structures containing desirable structures contribute to this intersection of "ranges of good". xii Preface In a biblical mood, I opened a 1970 paper entitled "Traffic Control -- From Hand Signals to Computers" with the sentence: "In the beginning there was the Ford".
Download or read book The New Censorship written by Joel Simon and published by Columbia University Press. This book was released on 2014-11-11 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: An examination of how the media is under fire and how to safeguard journalists and the information they seek to share with the public. Journalists are being imprisoned and killed in record numbers. Online surveillance is annihilating privacy, and the Internet can be brought under government control at any time. Joel Simon, the executive director of the Committee to Protect Journalists, warns that we can no longer assume that our global information ecosystem is stable, protected, and robust. Journalists are increasingly vulnerable to attack by authoritarian governments, militants, criminals, and terrorists, who all seek to use technology, political pressure, and violence to set the global information agenda. Reporting from Pakistan, Russia, Turkey, Egypt, and Mexico, among other hotspots, Simon finds journalists under threat from all sides. The result is a growing crisis in information—a shortage of the news we need to make sense of our globalized world and fight human rights abuses, manage conflict, and promote accountability. Drawing on his experience defending journalists on the front lines, he calls on “global citizens,” U.S. policy makers, international law advocates, and human rights groups to create a global freedom-of-expression agenda tied to trade, climate, and other major negotiations. He proposes ten key priorities, including combating the murder of journalists, ending censorship, and developing a global free-expression charter to challenge the criminal and corrupt forces that seek to manipulate the world's news. “Wise and insightful. [Simon] offers hope to all who care about maintaining the free flow of information in a world full of would-be censors.”—Ann Cooper, Columbia Journalism School
Download or read book Area Traffic Control written by and published by . This book was released on 1974 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Historical Geography of France written by Xavier de Planhol and published by Cambridge University Press. This book was released on 1994-03-17 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this 1994 book, Xavier de Planhol and Paul Claval, two of France's leading scholars in the field, trace the historical geography of their country from its roots in the Roman province of Gaul to the 1990s. They demonstrate how, for centuries, France was little more than an ideological concept, despite its natural physical boundaries and long territorial history. They examine the relatively late development of a more complex territorial geography, involving political, religious, cultural, agricultural and industrial unities and diversities. The conclusion reached is that only in the twentieth century had France achieved a profound territorial unity and only now are the fragmentations of the past being overwritten.
