Initial Evaluation Of The Existing Technologies For Vehicle Detection
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Initial Evaluation Of The Existing Technologies For Vehicle Detection
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Author : Dan R. Middleton
language : en
Publisher:
Release Date : 1997
Initial Evaluation Of The Existing Technologies For Vehicle Detection written by Dan R. Middleton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Detectors categories.
Evaluation Of Some Existing Technologies For Vehicle Detection
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Author : Dan R. Middleton
language : en
Publisher:
Release Date : 1999
Evaluation Of Some Existing Technologies For Vehicle Detection written by Dan R. Middleton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Detectors categories.
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.
Initial Evaluation Of Selected Detectors To Replace Inductive Loops On Freeways
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Author : Dan R. Middleton
language : en
Publisher:
Release Date : 2000
Initial Evaluation Of Selected Detectors To Replace Inductive Loops On Freeways written by Dan R. Middleton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Electronic traffic controls categories.
Evaluation Of Vehicle Detection Technologies For Applications In Georgia
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Author : Jidong Yang (Assistant professor)
language : en
Publisher:
Release Date : 2015
Evaluation Of Vehicle Detection Technologies For Applications In Georgia written by Jidong Yang (Assistant professor) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Traffic engineering categories.
Detector Technology Evaluation
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Author : Peter T. Martin
language : en
Publisher:
Release Date : 2003
Detector Technology Evaluation written by Peter T. Martin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Detectors categories.
Evaluation Of Overhead And In Ground Vehicle Detector Technologies For Traffic Flow Measurement
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Author : LA. Klein
language : en
Publisher:
Release Date : 1997
Evaluation Of Overhead And In Ground Vehicle Detector Technologies For Traffic Flow Measurement written by LA. Klein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Automobiles categories.
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.
State Of The Art Evaluation Of Traffic Detection And Monitoring Systems
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Author : Dan Middleton
language : en
Publisher:
Release Date : 2007
State Of The Art Evaluation Of Traffic Detection And Monitoring Systems written by Dan Middleton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Traffic monitoring categories.
This report covers the Phase A and B activities of Research Project SPR 627 for the Arizona Department of Transportation (ADOT). Phase C is planned as a separate research activity and is anticipated to begin in the near term, following the completion of Phases A and B. The need for a better valuation program for new traffic detection systems came in part from a lack of confidence in existing detectors, as well as the need for non-intrusive detectors to replace failing embedded inductive loops. The primary objectives of this research were to identify the most promising vehicle detection technologies to meet ADOT needs, to identify candidate test sites, to develop a field test evaluation plan, and to develop and deliver a detailed design of the detection testbed on the selected segment of freeway. The Texas Transportation Institute (TTI) met these objectives through an Internet and literature search, a state-of-the-practice review, a search of relevant new detector systems, and through meetings with the Technical Advisory Committee (TAC). Relying on TAC input, TTI developed first a conceptual design, followed by a detailed design and budget for a proposed test facility located on I-10 in Phoenix just west of the 16th Street interchange. Detectors selected for test in the initial period of 12-plus months during Phase C (and the technology used) are as follows: Wavetronix SS-125 (microwave radar), Sensys Networks (magnetic), Global Traffic Technologies microloops (magnetic) and Autoscope Solo Pro (video imaging). The baseline system selected for providing ground truth data is the Peek ADR-6000 using inductive signatures as its basis of detection. It is anticipated that this Phase C testing will include two summer seasons to expose selected detectors to the extreme heat and related environmental conditions found in the Phoenix. The initial cost of the testbed will include detectors sufficient to ultimately cover eight lanes in the westbound direction (currently seven lanes) and six lanes in the eastbound direction. Besides the detectors, the total cost estimate includes a 12 ft by 12 ft node building, three equipment cabinets, inductive loops for the baseline system, conduit, and boring. The total cost of the facility is estimated to be approximately $566,000.
Evaluation Of Alternative Detection Technologies For Trains And Highway Vehicles At Highway Rail Intersections
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Author :
language : en
Publisher: DIANE Publishing
Release Date : 2003
Evaluation Of Alternative Detection Technologies For Trains And Highway Vehicles At Highway Rail Intersections written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Highway-railroad grade crossings categories.
Evaluation Of Selected Video Detection Systems At Signalized Intersections
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Author : Jeromy L. Grenard
language : en
Publisher:
Release Date : 2001
Evaluation Of Selected Video Detection Systems At Signalized Intersections written by Jeromy L. Grenard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Detectors categories.
A Study Of Commercial Motor Vehicle Electronics Based Rear And Side Object Detection Systems Prepared In Response To Section 6057 P L 102 240 December 18 1991 Intermodal Surface Transportation Efficiency Act Of 1991
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Author :
language : en
Publisher:
Release Date : 1994
A Study Of Commercial Motor Vehicle Electronics Based Rear And Side Object Detection Systems Prepared In Response To Section 6057 P L 102 240 December 18 1991 Intermodal Surface Transportation Efficiency Act Of 1991 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
This report focuses on two types of electronics-based object detection and warning systems for commercial vehicle applications: those sensing the presence of objects to the rear of the vehicle, and those sensing the presence of objects on the right side of the vehicle. The rearward sensing systems are intended to help drivers avoid backing their vehicles into parked cars, pedestrians, loading docks, or other objects. The right side sensing systems are intended primarily as supplements to outside rearview mirror systems to help drivers detect adjacent vehicles or pedestrians when making lane change, merging, or turning maneuvers. This report describes the agency's initial evaluation of the performance of object detection and warning systems. Analyses of crash statistics were performed to identify the scope of the safety problem such systems address. Several commercially available or working prototype devices were obtained to assess their performance and their interface for presenting information on detected objects to drivers. Data were collected to quantify the range of performance capabilities of current technology devices. The devices were tested as "black boxes." The testing varied the input (i.e., object to be detected) and measured the output (i.e., when the warning occurred). Discussions were held with several truck drivers experienced with one of these systems. The results of these evaluations are documented in this report and discussed in terms of the desirable improvements that should be incorporated in these devices in order to realize their full potential for preventing crashes.