Evaluation Of Detector Placement For High Speed Approaches To Signalized Intersections
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Evaluation Of Detector Placement For High Speed Approaches To Signalized Intersections
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Author : Dan R. Middleton
language : en
Publisher:
Release Date : 1997
Evaluation Of Detector Placement For High Speed Approaches To Signalized Intersections 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.
Guidelines For Detector Placement On High Speed Approaches To Signalized Intersections
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Author :
language : en
Publisher:
Release Date : 1997
Guidelines For Detector Placement On High Speed Approaches To Signalized Intersections written by 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.
The primary objective of this research was to validate the new TxDOT procedures for loop detector placement on high-speed approaches to signalized intersections. The study approach involved conducting a field study at selected sites to compare the proposed new loop configuration to the existing configuration. The data analysis included investigating approach speeds to the intersection, driver actions in response to a yellow indication, and vehicle location at the onset of yellow. The Results from the field study revealed that the new loop configuration is as good as, and in some cases better than the old loop configuration. Because the new loop configuration can detect vehicles further upstream from the intersection (at the beginning of the dilemma zone), it results in fewer vehicles being caught in the dilemma zone at the onset of yellow. Also, because the new loop configuration typically resulted in more vehicles running the yellow light instead of stopping, fewer rear-end accidents may result. In addition, the new loop configuration resulted in fewer vehicles running the red light, also a major cause of accidents.
Evaluation Of High Speed Isolated Signalized Intersections In California
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Author : Simon Washington
language : en
Publisher:
Release Date : 1991
Evaluation Of High Speed Isolated Signalized Intersections In California written by Simon Washington and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Electronic traffic controls categories.
High-speed isolated signalized intersections (HSISI's) are generally encountered after long uninterrupted and uncongested flow conditions, thereby catching some motorists by surprise. For this reason alone, approaches to HSISI's need to have safe and effective warning, control, and intersection geometric treatments. This research identified characteristics at California HSISI's that relate to accident rates. A data base consisting of approximately 100 intersection and approach variables was established and used to investigate advance warning, signal timing and phasing, channelization, signal equipment configurations, shoulder widths and types, median widths and types, and approach speeds.
Vehicle Detector Placement For High Speed Isolated Traffic Actuated Intersection Control
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Author :
language : en
Publisher:
Release Date : 1977
Vehicle Detector Placement For High Speed Isolated Traffic Actuated Intersection Control written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Electronic traffic controls categories.
Evaluation Of Detection And Signing Systems For High Speed Signalized Intersections
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Author : Prahlad D. Pant
language : en
Publisher:
Release Date : 1996
Evaluation Of Detection And Signing Systems For High Speed Signalized Intersections written by Prahlad D. Pant and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Electronic traffic controls categories.
The effects of two dynamic signs that begin to flash a few seconds before the onset of the yellow interval and a static sign that flashes all the time were examined at tangent and curved approaches to rural, high speed signalized intersections. The dynamic signs included (a) a PTSWF (prepare to stop when flashing) sign, and (b) a FSSA (flashing symbolic signal ahead) sign with green, yellow, and red circles. The static sign was a CFSSA (continuously flashing symbolic signal ahead) sign with the three circles. The effects of these signs on vehicular speeds at different segments of the intersection approach including the dilemma zone were analyzed as were the vehicle conflict rates and the responses from the drivers' surveys.
Optimizing Detector Placement For High Speed Isolated Signalized Intersections Using Vehicular Delay As The Criterion
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Author : Donald L. Woods
language : en
Publisher:
Release Date : 1994
Optimizing Detector Placement For High Speed Isolated Signalized Intersections Using Vehicular Delay As The Criterion written by Donald L. Woods and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Detectors categories.
Intelligent Detection Control System For Rural Signalized Intersections
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Author :
language : en
Publisher:
Release Date : 2002
Intelligent Detection Control System For Rural Signalized Intersections written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Detectors categories.
Masters Theses In The Pure And Applied Sciences
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Author : Wade H. Shafer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Masters Theses In The Pure And Applied Sciences written by Wade H. Shafer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 39 (thesis year 1994) a total of 13,953 thesis titles from 21 Canadian and 159 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 39 reports theses submitted in 1994, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
In Service Evaluation Of A Detection Control System For High Speed Signalized Intersections
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Author : Karl Zimmerman
language : en
Publisher:
Release Date : 2005
In Service Evaluation Of A Detection Control System For High Speed Signalized Intersections written by Karl Zimmerman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Electronic traffic controls categories.
Traffic engineers are often faced with operational and safety challenges at rural, high-speed signalized intersections. Vehicle-actuated control, combined with multiple advance detectors, is often used to improve operations and safety. However, this type of detection and control has not always resulted in a significant number of crashes. Crashes sometimes continue to occur at high-speed intersections, and delays to traffic movements can be unnecessarily long. An innovative detection-control system was developed for the Texas Department of Transportation to minimize both delay and crash frequency at rural intersections. This system was subsequently implemented at several intersections in Texas and its safety and operational benefits were evaluated. This report documents the findings and conclusions reached as a result of a three-year implementation project. The Detection-Control System was installed at each of eight intersections in Texas during the three-year period. Five of the intersections were suitable for a before-after study of safety and operational data. An evaluation of the before-after data indicated that the Detection-Control System was able to reduce delay by 14 percent, stop frequency by 9 percent, red-light violations by 58 percent, heavy-vehicle red-light violations by 80 percent, and severe crash frequency by 39 percent.
Accident Mitigation Guide For Congested Rural Two Lane Highways
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Author : Kay Fitzpatrick
language : en
Publisher: Transportation Research Board
Release Date : 2000
Accident Mitigation Guide For Congested Rural Two Lane Highways written by Kay Fitzpatrick and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Transportation categories.