Download or read book Dynamic Vehicle Routing in Emergency Evacuation written by Yi Wen and published by . This book was released on 2015 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since Hurricane Katrina, extensive studies have been conducted aiming to optimize the transit vehicle routing in the event of an emergency evacuation. However, the vast majority of the studies focus on solving the deterministic vehicle routing problem that all the evacuation data are known in advance. These studies are generally not practical in dealing with real-world problems which involve considerable uncertainty in the evacuation data set. In this dissertation, a SmartEvac system is developed for dynamic vehicle routing optimization in emergency evacuation. The SmartEvac system is capable of processing dynamic evacuation data in real time, such as random pickup requests, travel time change, network interruptions. The objective is to minimize the total travel time for all transit vehicles. A column generation based online optimization model is integrated into the SmartEvac system. The optimization model is based on the following structure: a master problem model and a sub-problem model. The master problem model is used for routes selection from a restricted routes set while the sub-problem model is developed to progressively add new routes into the restricted routes set. The sub-problem is formulated as a shortest path problem with capacity constraint and is solved using a cycle elimination algorithm. When the evacuation data are updated, the SmartEvac system will reformulate the optimization model and generate a new routes set based on the existing routes set. The computational results on benchmark problems are compared to other studies in the literature. The SmartEvac system outperforms other approaches on most of the benchmark problems in terms of computation time and solution quality. CORSIM simulation is used as a test bed for the SmartEvac system. CORSIM Run-Time-Extension is developed for communications between the simulation and the SmartEvac system. A case study of the Hurricane Gustav emergency evacuation is conducted. Different scenarios corresponding to different situations that presented in the Hurricane Gustav emergency evacuation are proposed to evaluate the performance of the SmartEvac system in response to real-time data. The average processing time is 28.9 seconds and the maximum processing time is 171 seconds, which demonstrate the SmartEvac system's capability of real-time vehicle routing optimization.
Download or read book Using Dynamic Vehicle Routing Model to Dispatch Emergency Response Teams on Freeways written by 戴至佑 and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Real Time Routing for Evacuation Repsonse Planning and Execution written by Srinivas Peeta and published by . This book was released on 2011-04-15 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Vehicle Routing Problem for Medical Emergency Management written by Jean-Charles Créput and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geospatial Information Technology for Emergency Response written by Sisi Zlatanova and published by CRC Press. This book was released on 2008-01-24 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disaster management is generally understood to consist of four phases: mitigation, preparedness, response and recovery. While these phases are all important and interrelated, response and recovery are often considered to be the most critical in terms of saving lives. Response is the acute phase occurring after the event, and includes all arrangemen
Download or read book Pro active Dynamic Vehicle Routing written by Francesco Ferrucci and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with transportation processes denoted as the Real-time Distribution of Perishable Goods (RDOPG). The book presents three contributions that are made to the field of transportation. First, a model considering the minimization of customer inconvenience is formulated. Second, a pro-active real-time control approach is proposed. Stochastic knowledge is generated from past request information by a new forecasting approach and is used in the pro-active approach to guide vehicles to request-likely areas before real requests arrive there. Various computational results are presented to show that in many cases the pro-active approach is able to achieve significantly improved results. Moreover, a measure for determining the structural quality of request data sets is also proposed. The third contribution of this book is a method that is presented for considering driver inconvenience aspects which arise from vehicle en-route diversion activities. Specifically, this method makes it possible to restrict the number of performed vehicle en-route diversion activities.
Download or read book Dynamic Fleet Management written by Vasileios S. Zeimpekis and published by Springer Science & Business Media. This book was released on 2007-10-05 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on real time management of distribution systems, integrating the latest results in system design, algorithm development and system implementation to capture the state-of-the art research and application trends. The book important topics such as goods dispatching, couriers, rescue and repair services, taxi cab services, and more. The book includes real-life case studies that describe the solution to actual distribution problems by combining systemic and algorithmic approaches.
Download or read book Emergency Vehicle Routing Through a Dynamically Changing Urban Area written by Jie Liu and published by . This book was released on 2009 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research deals with emergency vehicle routing where a disaster happens on the way to a destination. It involves the development and application of P/N fuzzy logic routing algorithms for an emergency vehicle routing problem. Based on Positive/Negative fuzzy logic and a standard fuzzy system, a new algorithm is developed and applied in the downtown area in Louisville, Kentucky to route an emergency vehicle through an urban area. The algorithm combines a basic searching algorithm with P/N fuzzy logic, where the basic searching algorithm can provide all reasonable and qualified candidate routes from the start point to destination and the P/N fuzzy logic part is responsible for finding those taken by emergency vehicles. Also, a special kind of disaster which can spread with wind, like tear gas, is applied in the emergency vehicle routing problem to mimic the more complicated disaster situation. Dijkstra's algorithm, which is one of the most important algorithms for the shortest path problem, is employed in the emergency vehicle routing problem in this research. In other words, the emergency vehicle routing problem is treated as a shortest path problem with all main factors combined into link costs. At last, some analysis about the performances of the routes chosen by P/N fuzzy algorithm and Dijkstra's algorithm is presented, and more missions are done with both P/N fuzzy algorithm and Dijkstra's algorithm. At last, their capabilities of combining main factors, the capability of incorporating the linguistic measures, the capability of multiple selections and transparencies are also analyzed.
Download or read book Approximate Dynamic Programming for Dynamic Vehicle Routing written by Marlin Wolf Ulmer and published by Springer. This book was released on 2017-04-19 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a straightforward overview for every researcher interested in stochastic dynamic vehicle routing problems (SDVRPs). The book is written for both the applied researcher looking for suitable solution approaches for particular problems as well as for the theoretical researcher looking for effective and efficient methods of stochastic dynamic optimization and approximate dynamic programming (ADP). To this end, the book contains two parts. In the first part, the general methodology required for modeling and approaching SDVRPs is presented. It presents adapted and new, general anticipatory methods of ADP tailored to the needs of dynamic vehicle routing. Since stochastic dynamic optimization is often complex and may not always be intuitive on first glance, the author accompanies the ADP-methodology with illustrative examples from the field of SDVRPs. The second part of this book then depicts the application of the theory to a specific SDVRP. The process starts from the real-world application. The author describes a SDVRP with stochastic customer requests often addressed in the literature, and then shows in detail how this problem can be modeled as a Markov decision process and presents several anticipatory solution approaches based on ADP. In an extensive computational study, he shows the advantages of the presented approaches compared to conventional heuristics. To allow deep insights in the functionality of ADP, he presents a comprehensive analysis of the ADP approaches.
Download or read book Vehicle Routing written by Paolo Toth and published by SIAM. This book was released on 2014-12-05 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle routing problems, among the most studied in combinatorial optimization, arise in many practical contexts (freight distribution and collection, transportation, garbage collection, newspaper delivery, etc.). Operations researchers have made significant developments in the algorithms for their solution, and Vehicle Routing: Problems, Methods, and Applications, Second Edition reflects these advances. The text of the new edition is either completely new or significantly revised and provides extensive and complete state-of-the-art coverage of vehicle routing by those who have done most of the innovative research in the area; it emphasizes methodology related to specific classes of vehicle routing problems and, since vehicle routing is used as a benchmark for all new solution techniques, contains a complete overview of current solutions to combinatorial optimization problems. It also includes several chapters on important and emerging applications, such as disaster relief and green vehicle routing.
Download or read book Post disaster Dynamic Routing of Emergency Vehicles written by Mansooreh Mollaghasemi and published by . This book was released on 2003 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Computational Logistics and Supply Chain Analytics written by Ibraheem Alharbi and published by Springer Nature. This book was released on with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Risk Analysis VIII written by C. A. Brebbia and published by WIT Press. This book was released on 2012-09-01 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprised of the papers presented at the eighth, and latest, International Conference Simulation in Risk Analysis and Hazard Mitigation, this book covers a topic of increasing importance. Scientific knowledge is essential to our better understanding of risk. Natural hazards such as floods, earthquakes, landslides, fires and others, have always affected human societies. Man-made hazards, however, played a comparatively small role until the industrial revolution when the risk of catastrophic events started to increase due to the rapid growth of new technologies and the urbanisation of populations. The interaction of natural and anthropogenic risks adds to the complexity of the problem.Due to advances in computational methods and the ability to model systems more precisely we can now quantify hazards, simulate their effects and calculate risk with greater accuracy, enabling us to manage risk much more effectively. These developments are particularly relevant to environmental issues, where substantial risks are involved. Governments, and their publics, now place a high priority on effective risk management and the mitigation of possible hazards. Covering topics such as: Estimation of Risk; Risk Management; Vulnerability; Geomorphologic Risk; Network Systems; Climate Change Risks; Hazard Prevention; Management and Control; Security and Public Safety; Transportation Safety; Safe Ship Operations; Early Warning Systems; Food Safety; Risk Perception; Natural Hazards; Technological Risk, the book will be of interest to planners, emergency managers, environmentalists, engineers, policy makers and other government officials, researchers and academics involved in the field of risk and disaster management.
Download or read book Safety and Security Engineering IV written by Massimo Guarascio and published by WIT Press. This book was released on 2011 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Organised by Wessex Institute of Technology, UK; University of Antwerp, Belgium; University of Rome 'La Sapienza', Italy" - prelim.
Download or read book The Vehicle Routing Problem Latest Advances and New Challenges written by Bruce L. Golden and published by Springer Science & Business Media. This book was released on 2008-07-20 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a unified and carefully developed presentation, this book systematically examines recent developments in VRP. The book focuses on a portfolio of significant technical advances that have evolved over the past few years for modeling and solving vehicle routing problems and VRP variations. Reflecting the most recent scholarship, this book is written by one of the top research scholars in Vehicle Routing and is one of the most important books in VRP to be published in recent times.
Download or read book A Dynamic Vehicle Routing Problem with Multiple Delivery Routes written by and published by . This book was released on 2010 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of Dynamic Vehicle Routing Problems written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
