Impact Of Red Light Camera Enforcement On Crash Experience

Author : Hugh W. McGee
Publisher : Transportation Research Board
ISBN 13 : 0309069556
Total Pages : 65 pages
Book Rating : 4.57/5 ( download)

DOWNLOAD NOW!

Download or read book Impact of Red Light Camera Enforcement on Crash Experience written by Hugh W. McGee and published by Transportation Research Board. This book was released on 2003 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.

Author :
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.51/5 ( download)

DOWNLOAD NOW!

Download or read book The Impact of Red Light Cameras (photo-red Enforcement) on Crashes in Virginia written by and published by . This book was released on 2007 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red light running is a significant public health concern, killing more than 800 people and injuring 200,000 in the United States per year (Retting et al., 1999a; Retting and Kyrychenko, 2002). To reduce red light running in Virginia, six jurisdictions (Alexandria, Arlington, Fairfax City, Fairfax County, Falls Church, Vienna) deployed red light cameras at some point during the 10-year period when they were permitted under Virginia law. This report documents the safety impacts of those cameras based on 7 years of crash data for the period January 1, 1998, through December 31, 2004. Consistent with the findings of a previous Virginia study (Garber et al., 2005), this study finds that cameras are associated with an increase in rear-end crashes (about 27% or 42% depending on the statistical method used as shown in Tables ES1 and H1) and a decrease in red light running crashes (about 8% or 42% depending on the statistical method used as shown in Tables ES1 and H2). This report also shows that there is significant variation by intersection and by jurisdiction: one jurisdiction (Arlington) suggests that cameras are associated with an increase in all six crash types that were explicitly studied (rear-end, angle, red light running, injury red light running, total injury, and total) whereas two other jurisdictions saw decreases in most of these crash types. It is therefore not surprising that when the comprehensive crash costs for rear-end and angle crashes are monetized, the cameras are associated with an increase in crash costs in some jurisdictions (e.g., an annual increase of $140,883 in Arlington) and a net reduction in comprehensive crash costs in other jurisdictions (e.g., an annual reduction of $92,367 in Vienna). When these results are aggregated across all six jurisdictions, the cameras are associated with a net increase in comprehensive crash costs. However, when considering only injury crashes, if the three fatal angle crashes that occurred during the after period are removed from the analysis (the only fatalities that occurred during the study out of 1,168 injury crashes), then the cameras were associated with a modest reduction in the comprehensive crash cost for injury crashes only. These results cannot be used to justify the widespread installation of cameras because they are not universally effective. These results also cannot be used to justify the abolition of cameras, as they have had a positive impact at some intersections and in some jurisdictions. The report recommends, therefore, that the decision to install a red light camera be made on an intersection-by-intersection basis. In addition, it is recommended that a carefully controlled experiment be conducted to examine further the impact of red light programs on safety and to determine how an increase in rear-end crashes can be avoided at specific intersections.

Author : Simon Washington
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.55/5 ( download)

DOWNLOAD NOW!

Download or read book The Impact of Red Light Cameras (automated Enforcement) on Safety in Arizona written by Simon Washington and published by . This book was released on 2005 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author : Wen Hu
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.92/5 ( download)

DOWNLOAD NOW!

Download or read book Effects of Red Light Camera Enforcement on Fatal Crashes in Large United States Cities written by Wen Hu and published by . This book was released on 2011 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.62/5 ( download)

DOWNLOAD NOW!

Download or read book Guidance for Using Red Light Cameras written by and published by . This book was released on 2003 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Wen Hu
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.92/5 ( download)

DOWNLOAD NOW!

Download or read book Effects of Red Light Camera Enforcement on Fatal Crashes in Large US Cities written by Wen Hu and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author :
Publisher :
ISBN 13 :
Total Pages : 764 pages
Book Rating : 4.22/5 ( download)

DOWNLOAD NOW!

Download or read book Public Roads written by and published by . This book was released on 2001 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Kimberly A. Eccles
Publisher : Transportation Research Board
ISBN 13 : 030925843X
Total Pages : 85 pages
Book Rating : 4.32/5 ( download)

DOWNLOAD NOW!

Download or read book Automated Enforcement for Speeding and Red Light Running written by Kimberly A. Eccles and published by Transportation Research Board. This book was released on 2012 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research was to find out which automated enforcement programs have been successful and what contributed to their success, as well as which programs have been unsuccessful and to draw lessons from their experiences. This was accomplished through a comprehensive assessment of automated speed and red light running enforcement activity in the United States and Canada, which led to the development of guidelines to assist agencies in implementing and operating successful automated enforcement programs. Over 350 jurisdictions with current or past automated enforcement programs were contacted by survey and phone as part of the assessment. In addition to the survey, an extensive literature review was conducted to determine the effect of the programs, cost effectiveness, and resource requirements, and to get the perspective of the public.

Author : Forrest M. Council
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.13/5 ( download)

DOWNLOAD NOW!

Download or read book Safety Evaluation of Red-light Cameras written by Forrest M. Council and published by . This book was released on 2005 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author : Geetam Tiwari
Publisher : Springer Nature
ISBN 13 : 9811611157
Total Pages : 318 pages
Book Rating : 4.55/5 ( download)

DOWNLOAD NOW!

Download or read book Transport and Safety written by Geetam Tiwari and published by Springer Nature. This book was released on 2021-05-20 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses a variety of issues on traffic safety policy, ranging from issues of climate change, urban equity, and transport safety, in a broad global and societal context, while retaining situation-specific details. Written by international experts on issues of transportation and traffic safety, it will be of special interest to advanced researchers in the engineering and planning disciplines working on these issues as well as policy makers concerned with setting up institutions and legislations for traffic safety.