The Impact Of Red Light Cameras Automated Enforcement On Safety In Arizona
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The Impact Of Red Light Cameras Automated Enforcement On Safety In Arizona
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Author : Simon Washington
language : en
Publisher:
Release Date : 2005
The Impact Of Red Light Cameras Automated Enforcement On Safety In Arizona 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 2005 with Cameras categories.
Red Light Cameras (RLCs) have been used in a number of U.S. cities to yield a demonstrable reduction in red light violations; however, evaluating their impact on safety (crashes) has been relatively more difficult. Accurately estimating the safety impacts of RLCs is challenging for several reasons. First, many safety related factors are uncontrolled and/or confounded during the periods of observation. Second, "spillover" effects caused by drivers reacting to non-RLC-equipped intersections and approaches can make the selection of comparison sites difficult. Third, sites selected for RLC installation may not be randomly selected, and as a result may suffer from the regression to the mean effect. Finally, crash severity needs to be considered to fully understand the safety impacts of RLCs. With these challenges in mind this study was designed to estimate the safety impacts of RLCs on traffic crashes at signalized intersections in the state of Arizona and to identify which factors are associated with successful installations. RLC equipped intersections in the cities of Phoenix and Scottsdale are examined in detail to draw conclusions as to the relative success of RLC programs in these two jurisdictions. Both jurisdictions are operating successful installations of RLCs. Factors related to RLC effectiveness appear to include crash type and severity, left-turn phasing, presence of warning signs, approach speeds, and signal timing. Recommendations are made as to under what conditions should RLCs be considered.
Utilization And Impacts Of Automated Traffic Enforcement
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Author : United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Highways and Transit
language : en
Publisher:
Release Date : 2010
Utilization And Impacts Of Automated Traffic Enforcement written by United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Highways and Transit and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Law categories.
Automated Enforcement
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Author :
language : en
Publisher:
Release Date : 2007
Automated Enforcement written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Electronic traffic controls categories.
The Handbook Of Road Safety Measures
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Author : Rune Elvik
language : en
Publisher: Emerald Group Publishing
Release Date : 2009-10-14
The Handbook Of Road Safety Measures written by Rune Elvik and has been published by Emerald Group Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-10-14 with Transportation categories.
Contains summaries of the knowledge regarding the effects of 128 road safety measures. This title covers various areas of road safety including: traffic control; vehicle inspection; driver training; publicity campaigns; police enforcement; and, general policy instruments. It also covers topics such as post-accident care, and speed cameras.
Evaluating The Effectiveness Of Red Light Running Camera Enforcement In Cedar Rapids And Developing Guidelines For Selection And Use Of Red Light Running Countermeasures
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Author : Shauna L. Hallmark
language : en
Publisher:
Release Date : 2011
Evaluating The Effectiveness Of Red Light Running Camera Enforcement In Cedar Rapids And Developing Guidelines For Selection And Use Of Red Light Running Countermeasures written by Shauna L. Hallmark and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Red light running categories.
Red light running (RLR) is a problem in the US that has resulted in 165,000 injuries and 907 fatalities annually. In Iowa, RLR-related crashes make up 24.5 percent of all crashes and account for 31.7 percent of fatal and major injury crashes at signalized intersections. RLR crashes are a safety concern due to the increased likelihood of injury compared to other types of crashes. One tool used to combat red light running is automated enforcement in the form of RLR cameras. Automated enforcement, while effective, is often controversial. Cedar Rapids, Iowa installed RLR and speeding cameras at seven intersections across the city. The intersections were chosen based on crash rates and whether cameras could feasibly be placed at the intersection approaches. The cameras were placed starting in February 2010 with the last one becoming operational in December 2010. An analysis of the effect of the cameras on safety at these intersections was determined prudent in helping to justify the installation and effectiveness of the cameras. The objective of this research was to assess the safety effectiveness of the RLR program that has been implemented in Cedar Rapids. This was accomplished by analyzing data to determine changes in the following areas: Reductions in red light violation rates based on overall changes, time of day changes, and changes by lane; Effectiveness of the cameras over time; Time in which those running the red light enter the intersection; Changes in the average headway between vehicles entering the intersection.
Impact Of Red Light Camera Enforcement On Crash Experience
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Author : Hugh W. McGee
language : en
Publisher: Transportation Research Board
Release Date : 2003
Impact Of Red Light Camera Enforcement On Crash Experience written by Hugh W. McGee 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 2003 with Photography categories.
At head of title: National Cooperative Highway Research Program.
Safety Evaluation Of Red Light Cameras
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Author : Forrest M. Council
language : en
Publisher:
Release Date : 2005
Safety Evaluation Of Red Light Cameras written by Forrest M. Council and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Cameras categories.
The fundamental objective of this research was to determine the effectiveness of red-light-camera (RLC) systems in reducing crashes. The study involved an empirical Bayes (EB) before-after research using data from seven jurisdictions across the United States to estimate the crash and associated economic effects of RLC systems. The study included 132 treatment sites, and specially derived rear end and right-angle unit crash costs for various severity levels. Crash effects detected were consistent in direction with those found in many previous studies: decreased right-angle crashes and increased rear end ones. The economic analysis examined the extent to which the increase in rear end crashes negates the benefits for decreased right-angle crashes. There was indeed a modest aggregate crash cost benefit of RLC systems. A disaggregate analysis found that greatest economic benefits are associated with factors of the highest total entering average annual daily traffic (AADT), the largest ratios of right-angle to rear end crashes, and with the presence of protected left-turn phases. There were weak indications of a spillover effect that point to a need for a more definitive, perhaps prospective, study of this issue.
Red Light Camera Systems Operational Guidelines
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Author :
language : en
Publisher:
Release Date : 2005
Red Light Camera Systems Operational Guidelines written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Electric eye cameras categories.
Safety Comparison Of Roadway Design Elements On Urban Collectors With Access
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Author :
language : en
Publisher:
Release Date : 2009
Safety Comparison Of Roadway Design Elements On Urban Collectors With Access written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Express highways categories.
Traffic Safety And Human Behavior
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Author : David Shinar
language : en
Publisher: Emerald Group Publishing
Release Date : 2017-06-22
Traffic Safety And Human Behavior written by David Shinar and has been published by Emerald Group Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-22 with Transportation categories.
This comprehensive 2nd edition covers the key issues that relate human behavior to traffic safety. In particular it covers the increasing roles that pedestrians and cyclists have in the traffic system; the role of infotainment in driver distraction; and the increasing role of driver assistance systems in changing the driver-vehicle interaction.