Evaluation Of Vehicle Detection Technologies For Applications In Georgia PDF Download
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Author | : Jidong Yang (Assistant professor) |
Publisher | : |
Total Pages | : 272 |
Release | : 2015 |
Genre | : Traffic engineering |
ISBN | : |
Download Evaluation of Vehicle Detection Technologies for Applications in Georgia Book in PDF, ePub and Kindle
Author | : Dan R. Middleton |
Publisher | : |
Total Pages | : 188 |
Release | : 1999 |
Genre | : Detectors |
ISBN | : |
Download Evaluation of Some Existing Technologies for Vehicle Detection Book in PDF, ePub and Kindle
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 | : |
Total Pages | : 116 |
Release | : 1997 |
Genre | : Detectors |
ISBN | : |
Download Initial Evaluation of the Existing Technologies for Vehicle Detection Book in PDF, ePub and Kindle
Author | : Dan Middleton |
Publisher | : |
Total Pages | : 174 |
Release | : 2002 |
Genre | : Detectors |
ISBN | : |
Download Vehicle Detector Evaluation Book in PDF, ePub and Kindle
Most vehicle detection today relies on inductive loop detectors. However, problems with installation and maintenance of these detectors have necessitated evaluation of alternative detection systems. Replacing loops with better detectors requires a thorough evaluation of the alternatives. This research included examination of the performance characteristics, reliability, and cost of these technologies. The detection technologies included in this study were: video image detection, radar, Doppler microwave, passive acoustic, and a system based on inductive loops. Research results clearly indicate promising non-intrusive alternatives to loops, but their limitations must be understood. This research solicited information from a variety of agencies pertaining to installation and use of non-intrusive technologies and conducted field tests on a high volume freeway to determine their suitability for implementation. Findings indicate that non-intrusive detectors have improved since recent detector research sponsored by the Texas Department of Transportation. Count accuracies of 95% and speed accuracies within 5 mph of true values are common during free-flow conditions. During slower congested flow traffic, all non-intrusive device count accuracies degraded to the range of 70 to 90%, and most speed accuracies worsened as well--differing by 10 to 30 mph from the baseline system.
Author | : LA. Klein |
Publisher | : |
Total Pages | : 10 |
Release | : 1997 |
Genre | : Automobiles |
ISBN | : |
Download Evaluation of Overhead and In-Ground Vehicle Detector Technologies for Traffic Flow Measurement Book in PDF, ePub and Kindle
As part of the U.S. FHWA-sponsored Detection Technology for IVHS program, ultrasonic, microwave radar, infrared laser radar, nonimaging passive infrared, video image processing with visible and infrared spectrum imagery, acoustic array, high sampling rate inductive loop, conventional inductive loop, microloop, and magnetometer detector technologies were evaluated at freeway and surface street arterial sites in Minnesota, Florida, and Arizona. These states were chosen because they exhibited a wide range of climatic conditions. The criteria for selecting the detector evaluation sites included searching for roadways with high traffic density and suitable structures for mounting the overhead detectors. Approximately 5.9 Gbytes of digital and analog vehicle detection and signature data and more than 300 video tapes of the corresponding traffic flow were recorded.
Author | : Dan R. Middleton |
Publisher | : |
Total Pages | : 98 |
Release | : 2009 |
Genre | : Detectors |
ISBN | : |
Download Alternative Vehicle Detection Technologies for Traffic Signal Systems Book in PDF, ePub and Kindle
Due to the well-documented problems associated with inductive loops, most jurisdictions have replaced many intersection loops with video image vehicle detection systems (VIVDS). While VIVDS have overcome some of the problems with loops such as traffic disruption and pavement degradation, they have not been as accurate as originally anticipated. The objective of this project is to conduct evaluations of alternative detector technologies for application into the states traffic signal systems. The research will include investigating the available detectors that could replace loops or VIVDS through a literature search and agency contacts, followed by field and/or laboratory investigations of promising technologies. Deliverables will include a research report, a project summary report, and a detector selection guide. Findings indicate that three detectors should be considered as alternatives to VIVDS for signalized intersections one is a radar detector and the other two are magnetic detectors. The radar detector is only for dilemma zone detection and does not cover the stop line area. The other two are point detectors, so their basic function would be for loop replacements. One is an intrusive detector, requiring a short lane closure for installation and replacement. Field testing of performance for all three detectors indicated they are worth considering as inductive loop or VIVDS replacements.
Author | : |
Publisher | : |
Total Pages | : 43 |
Release | : 2003 |
Genre | : Detectors |
ISBN | : |
Download Evaluation of Alternative Detection Technologies for Trains and Highway Vehicles at Highway Rail Intersections Book in PDF, ePub and Kindle
Author | : Dan R. Middleton |
Publisher | : |
Total Pages | : 4 |
Release | : 2003 |
Genre | : Motor vehicles |
ISBN | : |
Download Summary Report on Evaluation of Vehicle Detection Systems Book in PDF, ePub and Kindle
Author | : Dr. Sundari Suresh |
Publisher | : Shanlax Publications |
Total Pages | : 332 |
Release | : |
Genre | : Language Arts & Disciplines |
ISBN | : 9391373127 |
Download Impact of Smart Technologies and Artificial Intelligence (AI) Paving Path Towards Interdisciplinary Research in the Fields of Engineering, Arts, Humanities, Commerce, Economics, Social Sciences, Law and Management - Challenges and Opportunities Book in PDF, ePub and Kindle
This e-ISBN collection of 34 chapters draws on the diverse insights of the opportunities and emerging challenges, changes in the smart technologies and artificial intelligence{AI} paving path towards interdisciplinary research in the fields of Engineering, Arts, Humanities, Commerce, Economics, Social Sciences, Law and Management. It offers decision-makers a comprehensive picture of the impact of Smart technologies and Artificial Intelligence (AI) expected in the long-term changes, and inspiration to leverage the opportunities that offer to improve the state of education. Academicians must find and establish a new equilibrium and a new normal for learning amid the present challenges.
Author | : |
Publisher | : |
Total Pages | : 156 |
Release | : 1977 |
Genre | : Automobiles |
ISBN | : |
Download Highway Safety Literature Book in PDF, ePub and Kindle