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Evaluation Of Sensors For Monitoring Truck Speeds
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Book Synopsis Evaluation of Sensors for Monitoring Truck Speeds by : Dan R. Middleton
Download or read book Evaluation of Sensors for Monitoring Truck Speeds written by Dan R. Middleton and published by . This book was released on 1993 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluated the applicability, durability, and accuracy of two general systems of sensors that were used to monitor truck speeds on a freeway connector: 1) pavement sensors mounted on the surface or submerged into the pavement, and 2) roadside sensors using an infrared beam technology. Pavement sensors were predominantly temporary piezoelectric sensors, although inductive loops complemented one set of piezo sensors. These pavement sensors generated signals that were processed by vehicle classifiers to produce either "binned" data or "raw" data for all vehicles using the monitored roadway. Roadside snesors monitored vehicles that exceeded a preset height, length, and speed. FIndings indicate that temporary piezo sensors are accurate for use as speed, count, and classification sutides, but their service life (durability) was highly variable and undesirable short in many cases. Installation and maintenance of these sensors were problematic due to interference with traffic. Infrared sensors, on the other hand, were less intrusive to the traffic stream during installation and maintemance, and they performed well with little mainenance for time oeriods of one year or longer.
Book Synopsis A Study of Selected Warning Devices for Reducing Truck Speeds by : Dan R. Middleton
Download or read book A Study of Selected Warning Devices for Reducing Truck Speeds written by Dan R. Middleton and published by . This book was released on 1994 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing effective roadside warning devices for drivers of large trucks is critical on freeway connectors where speeds are relatively high but design speeds may be substantially less than on mainlanes. Identifying and testing appropriate methods of monitoring traffic on freeway connectors was also included in this research. Two monitoring systems evolved, one using roadway sensors and the other using roadside sensors. Roadway sensors consisted of both piezoelectric and inductive loop sensors, while roadside sensors applied infrared sensor technology. The roadway warning devices tested can be categorized as passive devices and active devices. Passive devices consisted of "truck tipping" warning signs, while the active device consisted of flashing lights mounted one above and one below a set of passive truck tipping signs on both sides of the roadway. Speed reduction, as associated with accident reduction, was the ultimate goal of these tests. The null hypothesis tested by ANOVA of no treatment effect in the presence of initial speed was rejected in all but one of four models, using the probability of a Type I error, $\\\\alpha, $ equal 0.05. Speed reductions due to the active system were significant in AC and BC data sets, but not in AB data sets, suggesting that truck driver response to the lights occurred downstream of Location B. Truck weights were not significant in any tenable test results, and separation of trucks into the categories of combination and non-combination trucks, peak/off-peak periods, and day/night/dusk periods was not helpful in understanding variations in truck speeds. Cumulative speed distributions showed that the fastest trucks decreased their speeds by approximately 2 to 3 mph (3 to 5 kph) during the test period. Five of the seven single-vehicle truck accidents that were recorded on the I-610/US-59 connector in an 8 1/2 year period that were speed-related resulted in rollover. None occurred after installation of warning treatments being tested, although there were other prior years with no recorded accidents
Book Synopsis Texas Transportation Researcher by :
Download or read book Texas Transportation Researcher written by and published by . This book was released on 1990 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Checklist of State Publications by : Library of Congress. Exchange and Gift Division
Download or read book Monthly Checklist of State Publications written by Library of Congress. Exchange and Gift Division and published by . This book was released on 1994 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Research Abstracts written by and published by . This book was released on 1994 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation for Traffic Monitoring Equipment Evaluation Facility by :
Download or read book Investigation for Traffic Monitoring Equipment Evaluation Facility written by and published by . This book was released on 2007 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project investigated funding sources, design options, and viable locations for a traffic monitoring equipment evaluation facility. The project provided research and development to design a generic facility to evaluate traffic data collection equipment and sensors and perform traffic data collection research. This report covers the entirety of this 2-year project, identifying potential funding sources and candidate sites for further consideration, developing site design aspects for the two most promising sites, and evaluating Kistler Lineas Quartz weigh-in-motion sensors.
Author :National Science and Technology Council (U.S.). Subcommittee on Transportation Research and Development Publisher : ISBN 13 : Total Pages :68 pages Book Rating :4.3/5 (555 download)
Book Synopsis Transportation Strategic Research Plan by : National Science and Technology Council (U.S.). Subcommittee on Transportation Research and Development
Download or read book Transportation Strategic Research Plan written by National Science and Technology Council (U.S.). Subcommittee on Transportation Research and Development and published by . This book was released on 1999 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NSTC's National Transportation Science and Technology Strategy, issued in April 1997, has four key elements: Strategic Planning and Assessment, Partnership Initiatives, Enabling Research, and Education and Training. This Transportation Strategic Research Plan addresses the Enabling Research element. It incorporates R & D activities with clear potential relevance to one or more transportation modes or functions, regardless of the objectives for which it is conducted or the performing agency. Enabling research includes activities described under three Federal budget categories. For civil agencies, these are Basic Research, Applied Research, and Development. The comparable Defense Department terms are 6.1 (Basic Research), 6.2 (Applied Research), and 6.3 (Advanced Technology Demonstration).
Book Synopsis Speed Management by : European Conference of Ministers of Transport
Download or read book Speed Management written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2006 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Report addresses the key issues surrounding traffic speed management and highlights the improvements in policy and operations needed to reduce the extent of speeding.
Download or read book Highway Safety Literature written by and published by . This book was released on 1977 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Speed Weigh-in-motion System Calibration Practices by : A. T. Papagiannakis
Download or read book High Speed Weigh-in-motion System Calibration Practices written by A. T. Papagiannakis and published by Transportation Research Board. This book was released on 2008 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sensing Issues in Civil Structural Health Monitoring by : Farhad Ansari
Download or read book Sensing Issues in Civil Structural Health Monitoring written by Farhad Ansari and published by Springer Science & Business Media. This book was released on 2005-07-14 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Civil infrastructure systems are generally the most expensive assets in any country, and these systems are deteriorating at an alarming rate. In addition, these systems have a long service life in comparison to most other commercial products. As well, the introduction of intelligent materials and innovative design approaches in these systems is painfully slow due to heavy relianceon traditional construction and maintenance practices, and the conservative nature of design codes. Feedback on the "state of the health" of constructed systems is practically nonexistent. In the quest for lighter, stronger and corrosion-resistant structures, the replacement of ferrous materials by high-strength fibrous ones is being actively pursued in several countries around the world, both with respect to the design of new structures as well as for the rehabilitation and strengthening of existing ones. In North America, active research in the design of new highway bridges is focused on a number of specialty areas, including the replacement of steel reinforcing bars in concrete deck slabs by randomly distributed low-modulus fibers, and the replacement of steel prestressing cables for concrete components by tendons comprising super-strong fibers. Research is also being conducted on using FRPs to repair and strengthen existing structures.
Book Synopsis ITS Sensors and Architectures for Traffic Management and Connected Vehicles by : Lawrence A. Klein
Download or read book ITS Sensors and Architectures for Traffic Management and Connected Vehicles written by Lawrence A. Klein and published by CRC Press. This book was released on 2017-08-07 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: An intelligent transportation system (ITS) offers considerable opportunities for increasing the safety, efficiency, and predictability of traffic flow and reducing vehicle emissions. Sensors (or detectors) enable the effective gathering of arterial and controlled-access highway information in support of automatic incident detection, active transportation and demand management, traffic-adaptive signal control, and ramp and freeway metering and dispatching of emergency response providers. As traffic flow sensors are integrated with big data sources such as connected and cooperative vehicles, and cell phones and other Bluetooth-enabled devices, more accurate and timely traffic flow information can be obtained. The book examines the roles of traffic management centers that serve cities, counties, and other regions, and the collocation issues that ensue when multiple agencies share the same space. It describes sensor applications and data requirements for several ITS strategies; sensor technologies; sensor installation, initialization, and field-testing procedures; and alternate sources of traffic flow data. The book addresses concerns related to the introduction of automated and connected vehicles, and the benefits that systems engineering and national ITS architectures in the US, Europe, Japan, and elsewhere bring to ITS. Sensor and data fusion benefits to traffic management are described, while the Bayesian and Dempster–Shafer approaches to data fusion are discussed in more detail. ITS Sensors and Architectures for Traffic Management and Connected Vehicles suits the needs of personnel in transportation institutes and highway agencies, and students in undergraduate or graduate transportation engineering courses.
Book Synopsis Performance Evaluation and Benchmarking of Intelligent Systems by : Raj Madhavan
Download or read book Performance Evaluation and Benchmarking of Intelligent Systems written by Raj Madhavan and published by Springer Science & Business Media. This book was released on 2010-04-29 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: To design and develop capable, dependable, and affordable intelligent systems, their performance must be measurable. Scienti?c methodologies for standardization and benchmarking are crucial for quantitatively evaluating the performance of eme- ing robotic and intelligent systems’ technologies. There is currently no accepted standard for quantitatively measuring the performance of these systems against user-de?ned requirements; and furthermore, there is no consensus on what obj- tive evaluation procedures need to be followed to understand the performance of these systems. The lack of reproducible and repeatable test methods has precluded researchers working towards a common goal from exchanging and communic- ing results, inter-comparing system performance, and leveraging previous work that could otherwise avoid duplication and expedite technology transfer. Currently, this lack of cohesion in the community hinders progress in many domains, such as m- ufacturing, service, healthcare, and security. By providing the research community with access to standardized tools, reference data sets, and open source libraries of solutions, researchers and consumers will be able to evaluate the cost and be- ?ts associated with intelligent systems and associated technologies. In this vein, the edited book volume addresses performance evaluation and metrics for intel- gent systems, in general, while emphasizing the need and solutions for standardized methods. To the knowledge of the editors, there is not a single book on the market that is solely dedicated to the subject of performance evaluation and benchmarking of intelligent systems.
Book Synopsis Assessment of Advanced Technologies for Relieving Urban Traffic Congestion by : Peter Davies
Download or read book Assessment of Advanced Technologies for Relieving Urban Traffic Congestion written by Peter Davies and published by Transportation Research Board. This book was released on 1991 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the International Conference on Innovations for Sustainable and Responsible Mining by : Xuan-Nam Bui
Download or read book Proceedings of the International Conference on Innovations for Sustainable and Responsible Mining written by Xuan-Nam Bui and published by Springer Nature. This book was released on 2020-10-25 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume gathers the latest advances, innovations, and applications in the field of mining, geology and geo-spatial technologies, as presented by leading researchers and engineers at the International Conference on Innovations for Sustainable and Responsible Mining (ISRM), held in Hanoi, Vietnam on October 15-17 2020. The contributions cover a diverse range of topics, including mining technology, drilling and blasting engineering, tunneling and geotechnical applications, mineral processing, mine management and economy, environmental risk assessment and management, mining and local development, mined land rehabilitation, water management and hydrogeology, regional Geology and tectonics, spatial engineering for monitoring natural resources and environment change, GIS and remote sensing for natural disaster monitoring, risk mapping and revisualization, natural resources monitoring and management, mine occupational safety and health. Selected by means of a rigorous peer-review process, they will spur novel research directions and foster future multidisciplinary collaborations.
Book Synopsis Use of Computers in the Coal Industry 1986 by : Y.J. Wang
Download or read book Use of Computers in the Coal Industry 1986 written by Y.J. Wang and published by CRC Press. This book was released on 2020-08-26 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an outcome of the third conference on the use of computers in the coal industry in Morgantown. It presents valuable computer applications covering the most aspects of coal industry and covers following areas: mine management and economics; surface mining; coal preparation; and blasting.
Book Synopsis Evaluation of Innovative Methods to Reduce Stops to Trucks at Isolated Signalized Intersections by : Dan R. Middleton
Download or read book Evaluation of Innovative Methods to Reduce Stops to Trucks at Isolated Signalized Intersections written by Dan R. Middleton and published by . This book was released on 1997 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
