Download or read book Projection Algorithm for Improved Corridor Signal Coordination written by Cong Feng and published by . This book was released on 2009 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: With ever-increasing travel demands on current urban roadway networks and limited financial resources, it has become increasingly challenging for traffic engineers to improve the roadway level of service efficiently and economically (1). Compared with an infrastructure reconstruction project, optimizing the current traffic facilities, especially the traffic signal control systems, is favored by most of traffic engineers. In many cases, advanced traffic control devices and well designed traffic operation strategies can provide effectively relief from congestion with considerably low investment. In recent years, more and more state-of-the-art traffic control systems have been developed to reduce travel delay, smooth traffic flow, monitor traffic incident, and reduce fuel consumption. Many advanced technologies have been integrated in modern traffic control systems, including new vehicle detection devices, video processing hardware, short-range communication equipment, GPS, GIS, etc. In those systems, signal coordination is one of the most important concepts, especially when the system is designed for the entire signalized urban corridor rather than isolated intersection. A corridor signal optimization method called projection algorithm (PA) was developed and tested in this thesis. By using green splits at each intersection and the link length as well as speed limit between intersections as input, PA calculates the offset for each intersection to maximize the green bandwidth along the corridor and it further improves the method by considering the residual queue, start-up delay, unbalanced directional volume in signal optimization. The signal timing plan from this algorithm has been evaluated in VISSIM simulation platform and the effectiveness is discussed. Preliminary results show that PA is able to produce effective signal coordination plans, especially in low and medium volume conditions with competitive output in comparison with plans from other methods. Built on the findings, a comprehensive evaluation of the green bandwidth method has also been conducted for future research and field implementation.
Download or read book Traffic Signal Timing Manual written by U.s. Department of Transportation and published by CreateSpace. This book was released on 2015-02-20 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report serves as a comprehensive guide to traffic signal timing and documents the tasks completed in association with its development. The focus of this document is on traffic signal control principles, practices, and procedures. It describes the relationship between traffic signal timing and transportation policy and addresses maintenance and operations of traffic signals. It represents a synthesis of traffic signal timing concepts and their application and focuses on the use of detection, related timing parameters, and resulting effects to users at the intersection. It discusses advanced topics briefly to raise awareness related to their use and application. The purpose of the Signal Timing Manual is to provide direction and guidance to managers, supervisors, and practitioners based on sound practice to proactively and comprehensively improve signal timing. The outcome of properly training staff and proactively operating and maintaining traffic signals is signal timing that reduces congestion and fuel consumption ultimately improving our quality of life and the air we breathe. This manual provides an easy-to-use concise, practical and modular guide on signal timing. The elements of signal timing from policy and funding considerations to timing plan development, assessment, and maintenance are covered in the manual. The manual is the culmination of research into practices across North America and serves as a reference for a range of practitioners, from those involved in the day to day management, operation and maintenance of traffic signals to those that plan, design, operate and maintain these systems.
Download or read book Development of Dynamic Real time Integration of Transit Signal Priority in Coordinated Traffic Signal Control System Using Genetic Algorithms and Artificial Neural Networks written by Mohammad Shareef Ghanim and published by . This book was released on 2008 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of Research written by Indiana. Department of Transportation. Research Division and published by . This book was released on 1999 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Medical Image Computing and Computer Assisted Intervention MICCAI 2011 written by Gabor Fichtinger and published by Springer Science & Business Media. This book was released on 2011-09-02 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three-volume set LNCS 6891, 6892 and 6893 constitutes the refereed proceedings of the 14th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2011, held in Toronto, Canada, in September 2011. Based on rigorous peer reviews, the program committee carefully selected 251 revised papers from 819 submissions for presentation in three volumes. The first volume includes 86 papers organized in topical sections on robotics, localization and tracking and visualization, planning and image guidance, physical modeling and simulation, motion modeling and compensation, and segmentation and tracking in biological images.
Download or read book Multi agent Look ahead Traffic adaptive Control written by Ronald Theodoor Katwijk and published by . This book was released on 2008 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assess Impacts and Benefits of Traffic Signal Priority for Buses written by Janice Daniel and published by . This book was released on 2004 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although signal priority has proven to be an effective tool for reducing delays to buses, this technique is not always beneficial to the overall traffic network. Providing priority for transit vehicles along a corridor with a large number of transit vehicles can cause a coordinated network to be out of step resulting in an overall increase in delay. Bus signal priority also has the disadvantage of penalizing the cross-street traffic when high transit volumes exist at the corridor. The objectives of the research described in this report is to assess the impacts of and the implementation issues associated with the use of bus signal priority in New Jersey and to assess the benefit and costs of signal priority.
Download or read book Wisconsin Transportation Research written by and published by . This book was released on 2004 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Models and Technologies for Smart Sustainable and Safe Transportation Systems written by Stefano de Luca and published by BoD – Books on Demand. This book was released on 2021-07-28 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovative and smart mobility systems are expected to make transportation systems more sustainable, inclusive, and safe. Because of changing mobility paradigms, transport planning and design require different methodological approaches. Over twelve chapters, this book examines and analyzes Mobility as a Service (MaaS), travel behavior, traffic control, intelligent transportation system design, electric, connected, and automated vehicles, and much more.
Download or read book Localization Algorithms and Strategies for Wireless Sensor Networks Monitoring and Surveillance Techniques for Target Tracking written by Mao, Guoqiang and published by IGI Global. This book was released on 2009-05-31 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless localization techniques are an area that has attracted interest from both industry and academia, with self-localization capability providing a highly desirable characteristic of wireless sensor networks. Localization Algorithms and Strategies for Wireless Sensor Networks encompasses the significant and fast growing area of wireless localization techniques. This book provides comprehensive and up-to-date coverage of topics and fundamental theories underpinning measurement techniques and localization algorithms. A useful compilation for academicians, researchers, and practitioners, this Premier Reference Source contains relevant references and the latest studies emerging out of the wireless sensor network field.
Download or read book TIMS ORSA Bulletin written by Institute of Management Sciences and published by . This book was released on 1994 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Probabilistic Robotics written by Sebastian Thrun and published by MIT Press. This book was released on 2005-08-19 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to the techniques and algorithms of the newest field in robotics. Probabilistic robotics is a new and growing area in robotics, concerned with perception and control in the face of uncertainty. Building on the field of mathematical statistics, probabilistic robotics endows robots with a new level of robustness in real-world situations. This book introduces the reader to a wealth of techniques and algorithms in the field. All algorithms are based on a single overarching mathematical foundation. Each chapter provides example implementations in pseudo code, detailed mathematical derivations, discussions from a practitioner's perspective, and extensive lists of exercises and class projects. The book's Web site, www.probabilistic-robotics.org, has additional material. The book is relevant for anyone involved in robotic software development and scientific research. It will also be of interest to applied statisticians and engineers dealing with real-world sensor data.
Download or read book UAV Photogrammetry and Remote Sensing written by Fernando Carvajal-Ramírez and published by MDPI. This book was released on 2021-09-06 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of remote sensing as a way of capturing information from an object without making contact with it has, until recently, been exclusively focused on the use of Earth observation satellites. The emergence of unmanned aerial vehicles (UAV) with Global Navigation Satellite System (GNSS) controlled navigation and sensor-carrying capabilities has increased the number of publications related to new remote sensing from much closer distances. Previous knowledge about the behavior of the Earth's surface under the incidence different wavelengths of energy has been successfully applied to a large amount of data recorded from UAVs, thereby increasing the special and temporal resolution of the products obtained. More specifically, the ability of UAVs to be positioned in the air at pre-programmed coordinate points; to track flight paths; and in any case, to record the coordinates of the sensor position at the time of the shot and at the pitch, yaw, and roll angles have opened an interesting field of applications for low-altitude aerial photogrammetry, known as UAV photogrammetry. In addition, photogrammetric data processing has been improved thanks to the combination of new algorithms, e.g., structure from motion (SfM), which solves the collinearity equations without the need for any control point, producing a cloud of points referenced to an arbitrary coordinate system and a full camera calibration, and the multi-view stereopsis (MVS) algorithm, which applies an expanding procedure of sparse set of matched keypoints in order to obtain a dense point cloud. The set of technical advances described above allows for geometric modeling of terrain surfaces with high accuracy, minimizing the need for topographic campaigns for georeferencing of such products. This Special Issue aims to compile some applications realized thanks to the synergies established between new remote sensing from close distances and UAV photogrammetry.
Download or read book Transportation Weekly Government Abstracts written by and published by . This book was released on 1977 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1978 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Imagine Boston 2030 written by City Of Boston and published by . This book was released on 2017-09-08 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, Boston is in a uniquely powerful position to make our city more affordable, equitable, connected, and resilient. We will seize this moment to guide our growth to support our dynamic economy, connect more residents to opportunity, create vibrant neighborhoods, and continue our legacy as a thriving waterfront city.Mayor Martin J. Walsh's Imagine Boston 2030 is the first citywide plan in more than 50 years. This vision was shaped by more than 15,000 Boston voices.
Download or read book Border Management Modernization written by Gerard McLinden and published by World Bank Publications. This book was released on 2010-11-30 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Border clearance processes by customs and other agencies are among the most important and problematic links in the global supply chain. Delays and costs at the border undermine a country’s competitiveness, either by taxing imported inputs with deadweight inefficiencies or by adding costs and reducing the competitiveness of exports. This book provides a practical guide to assist policy makers, administrators, and border management professionals with information and advice on how to improve border management systems, procedures, and institutions.
