Author: John P. DeckerPublisher:
ISBN:
Category : Launch vehicles (Astronautics)
Languages : en
Pages : 68
Book Description
An Exploratory Study of Parallel-stage Separation of Reusable Launch Vehicles
Author: John P. DeckerPublisher:
ISBN:
Category : Launch vehicles (Astronautics)
Languages : en
Pages : 68
Book Description
Separation of Vehicles
Author: Cambridge SystematicsPublisher: Transportation Research Board
ISBN: 0309154758
Category : Transportation
Languages : en
Pages : 108
Book Description
NCHRP Report 649/NCFRP Report 3: Separation of Vehicles - CMV-Only Lanes presents an extensive compendium of information about CMV-only lanes and examines major issues and concepts that should be understood in developing new applications of CMV-only lane concepts as a potential method for both easing congestion and reducing the number of traffic accidents on highways. Appendices to this report, including an annotated literature review, performance evaluation criteria, benefits monetization factors and unit costs, and net present value calculations for benefit-cost analysis, are available on the TRB website. This report and the supplemental information can be used by public agencies that may be considering CMV-only lane concepts in corridor studies or other planning applications. The report provides data such agencies can use to support their own evaluations of CMV-only lane projects.
NASA Technical Note
Author: On-Road Intelligent Vehicles
Author: Rahul KalaPublisher: Butterworth-Heinemann
ISBN: 0128037563
Category : Technology & Engineering
Languages : en
Pages : 538
Book Description
On-Road Intelligent Vehicles: Motion Planning for Intelligent Transportation Systems deals with the technology of autonomous vehicles, with a special focus on the navigation and planning aspects, presenting the information in three parts. Part One deals with the use of different sensors to perceive the environment, thereafter mapping the multi-domain senses to make a map of the operational scenario, including topics such as proximity sensors which give distances to obstacles, vision cameras, and computer vision techniques that may be used to pre-process the image, extract relevant features, and use classification techniques like neural networks and support vector machines for the identification of roads, lanes, vehicles, obstacles, traffic lights, signs, and pedestrians. With a detailed insight into the technology behind the vehicle, Part Two of the book focuses on the problem of motion planning. Numerous planning techniques are discussed and adapted to work for multi-vehicle traffic scenarios, including the use of sampling based approaches comprised of Genetic Algorithm and Rapidly-exploring Random Trees and Graph search based approaches, including a hierarchical decomposition of the algorithm and heuristic selection of nodes for limited exploration, Reactive Planning based approaches, including Fuzzy based planning, Potential Field based planning, and Elastic Strip and logic based planning. Part Three of the book covers the macroscopic concepts related to Intelligent Transportation Systems with a discussion of various topics and concepts related to transportation systems, including a description of traffic flow, the basic theory behind transportation systems, and generation of shock waves. - Provides an overall coverage of autonomous vehicles and Intelligent Transportation Systems - Presents a detailed overview, followed by the challenging problems of navigation and planning - Teaches how to compare, contrast, and differentiate navigation algorithms
Recent Advances in Traffic Engineering
Author: Ashish DhamaniyaPublisher: Springer Nature
ISBN: 9819944643
Category : Technology & Engineering
Languages : en
Pages : 618
Book Description
This book comprises select peer-reviewed proceedings of the National Conference on Recent Advances in Traffic Engineering (RATE 2022). The contents includes in-depth insights into the domain of traffic engineering and planning and presents the latest advancements by focusing on traffic engineering, traffic flow, road safety, advanced techniques for transportation surveys, and data collection. It covers topics including travel demand modeling and transportation planning issues. The contents of this book offer up-to-date and practical knowledge on different aspects of traffic engineering. It will be useful for researchers as well as practitioners.
Highway Safety Literature
Author: Basic Research and Technologies for Two-Stage-to-Orbit Vehicles
Author: Dieter JacobPublisher: John Wiley & Sons
ISBN: 3527605509
Category : Technology & Engineering
Languages : en
Pages : 683
Book Description
Focusing on basic aspects of future reusable space transportation systems and covering overall design, aerodynamics, thermodynamics, flight dynamics, propulsion, materials, and structures, this report presents some of the most recent results obtained in these disciplines. The authors are members of three Collaborative Research Centers in Aachen, Munich and Stuttgart concerned with hypersonic vehicles. A major part of the research presented here deals with experimental and numerical aerodynamic topics ranging from low speed to hypersonic flow past the external configuration and through inlet and nozzle. Mathematicians and engineers jointly worked on aspects of flight mechanics like trajectory optimization, stability, control and flying qualities. Structural research and development was predominantly coupled to the needs for high temperature resistant structures for space vehicles.
Official Gazette of the United States Patent and Trademark Office
Author: Vehicle Accident Analysis and Reconstruction Methods
Author: Raymond M BrachPublisher: SAE International
ISBN: 076803437X
Category : Technology & Engineering
Languages : en
Pages : 445
Book Description
Designed for the experienced practitioner, this new book aims to help reconstruction specialists with problems they may encounter in everyday analysis. The authors demonstrate how to take the physics behind accidents out of the idealized world and into practical situations. Real-world examples are used to illustrate the methods, clarify important concepts, and provide practical applications to those working in the field. Thoroughly revised, this new edition builds on the original exploration of accident analysis, reconstruction, and vehicle design. Enhanced with new material and improved chapters on key topics, an expanded glossary of automotive terms, and a bibliography at the end of the book providing further reading suggestions make this an essential resource reference for engineers involved in litigation, forensic investigation, automotive safety, and crash reconstruction. Police officers, attorneys, and insurance professionals will also find the book to be a definitive resource in reconstructing accident scenes. New Topics: • Event data recorders (EDRs) • Frictional drag coefficients for sliding tires • Railroad grade-crossing collisions • New practical applications of mathematical methods Enhanced Features: • Expanded glossary of automotive terms • Bibliography with further reading suggestions • Improved chapters on tire forces, rollover accidents, crush energy, pedestrian collisions, vehicle dynamic simulation
Author: