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Author: Dan R. Middleton Publisher: ISBN: Category : Detectors Languages : en Pages : 188
Book Description
Most vehicle detection today relies on inductive loop detectors (ILDs). However, problems with installation and maintenance of these detectors have necessitated evaluation of alternative detection systems. Replacing ILDs with better detectors requires a thorough evaluation of the alternatives. This evaluation included examination of the functional quality, reliability, and cost of these technologies as well as development of recommendations for application. Primary detection technologies included in this study are video image detection systems (VIDS), passive infrared, active infrared, passive magnetic, radar, Doppler microwave, passive acoustic, and ILDs. Results of new detector testing clearly indicate promising alternatives to ILDs, but the limitations of these new detectors must also be accepted. Researchers found that some technologies performed quite well while, in some cases, offering features that are more flexible than ILDs. These technologies include VIDS, passive infrared, active infrared, radar, Doppler microwave, and pulse ultrasonic.
Author: Dan R. Middleton Publisher: ISBN: Category : Detectors Languages : en Pages : 188
Book Description
Most vehicle detection today relies on inductive loop detectors (ILDs). However, problems with installation and maintenance of these detectors have necessitated evaluation of alternative detection systems. Replacing ILDs with better detectors requires a thorough evaluation of the alternatives. This evaluation included examination of the functional quality, reliability, and cost of these technologies as well as development of recommendations for application. Primary detection technologies included in this study are video image detection systems (VIDS), passive infrared, active infrared, passive magnetic, radar, Doppler microwave, passive acoustic, and ILDs. Results of new detector testing clearly indicate promising alternatives to ILDs, but the limitations of these new detectors must also be accepted. Researchers found that some technologies performed quite well while, in some cases, offering features that are more flexible than ILDs. These technologies include VIDS, passive infrared, active infrared, radar, Doppler microwave, and pulse ultrasonic.
Author: Stephan Olariu Publisher: CRC Press ISBN: 1420085891 Category : Computers Languages : en Pages : 474
Book Description
In spite of their importance and potential societal impact, there is currently no comprehensive source of information about vehicular ad hoc networks (VANETs). Cohesively integrating the state of the art in this emerging field, Vehicular Networks: From Theory to Practice elucidates many issues involved in vehicular networking, including traffic eng
Author: Mark E. Hallenbeck Publisher: Transportation Research Board ISBN: 0309087880 Category : Pavements Languages : en Pages : 68
Book Description
Introduction -- Types of equipment -- Technology descriptions -- A process for selecting equipment -- Best practices for equipment use -- Abbreviations used without definitions in TRB publications.
Author: Yunpeng WANG Publisher: Springer Nature ISBN: 9811657769 Category : Computers Languages : en Pages : 614
Book Description
In recent years, the application of intelligent transportation systems (ITS) has steadily expanded, and has become a hot spot of common interest to universities, scientific research institutes, enterprises and institutions in the transportation field. ITS is the product of the deep integration of modern high-tech in the transportation industry, and its development has accompanied that of modern high-tech. ITS is now also becoming part of the Internet of Things (IoT), and is expected to contribute significantly to making our cities smarter and connecting with other infrastructure. Although there are many monographs and textbooks on intelligent transportation, with the advancement of technology and changes in demand, the key technologies of ITS are also rapidly changing. This book chiefly focuses on the main technologies of ITS, examining them from four perspectives: “sense” (perception and management of traffic information, chapters 2 & 3), “transmission” (interaction of traffic information, chapter 4), “prediction” (prediction of traffic states, chapter 6) and “application” (intelligent transportation applications, chapters 6 through 10). Given its scope, the book can be used as a textbook for undergraduates or graduates, as well as a reference book for research institutes and enterprises. This book emphasizes the use of basis traffic engineering principles and state-of-art methodologies to develop functional designs. It largely reflects the authors’ own experience in adapting these methodologies to ITS design. For example, the book addresses various forms of data collection, models used to predict and evaluate traffic states, comprehensive description in connected vehicles, applications for users and traffic managers, etc. The knowledge gained here will allow designers to estimate the performance differences among alternatives and gauge their potential benefits for functional design purposes. To gain the most from the book, readers should be somewhat familiar with the field of traffic engineering and interested in ITS.
Author: Sherry L. Skszek Publisher: ISBN: Category : Traffic surveys Languages : en Pages : 88
Book Description
The purpose of this report is to look at the state-of-the-art of non-traditional traffic counting methods. This is done through a three-fold approach that includes an assessment of currently available technology, a survey of State Department of Transportation practices, and a review of the literature. Traditional traffic counting has utilized intrusive devices including bending plate, pneumatic road tube, inductive loops, and piezo-electric sensors. As safety, cost, increased traffic flow, complex road geometrics, and traffic disruption have become issues of concern, traffic counting professionals are looking more closely at alternatives to traditional methods of data collection. Such non-traditional traffic counting devices as video image detection, Doppler microwave, passive magnetic, passive acoustic, active and passive infrared, and active and passive ultrasonic are being considered due to their non-intrusive nature. Information on available technology including cost, installation requirements, technical specifications, data retrieval, and limitations of the products are addressed. This information is followed by a summary of State practices that shows very limited usage of non-intrusive technology. Lastly, a review of the literature indicates there is little in the way of "new" technology. However, several evaluations of non-intrusive devices provide valuable information to traffic counting professionals that will assist in decision-making regarding upgrades to current practices
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Homeland Security Publisher: ISBN: Category : National security Languages : en Pages : 1946
Author: Dan R. Middleton
Author: Dan R. Middleton
Author: Dan R. Middleton
Author: Stephan Olariu
Author: 
Author: Mark E. Hallenbeck
Author: 
Author: Yunpeng WANG
Author: A. Emily Parkany
Author: Sherry L. Skszek
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Homeland Security