Author: United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Highways and TransitPublisher:
ISBN:
Category : Law
Languages : en
Pages : 348
Book Description
Utilization and Impacts of Automated Traffic Enforcement
Author: United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Highways and TransitPublisher:
ISBN:
Category : Law
Languages : en
Pages : 348
Book Description
Impact of Red Light Camera Enforcement on Crash Experience
Author: Hugh W. McGeePublisher: Transportation Research Board
ISBN: 0309069556
Category : Electronic traffic controls
Languages : en
Pages : 65
Book Description
At head of title: National Cooperative Highway Research Program.
The Impact of Red Light Cameras (photo-red Enforcement) on Crashes in Virginia
Author: Publisher:
ISBN:
Category : Legal photography
Languages : en
Pages : 154
Book Description
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.
An Evaluation of Red Light Camera (photo-red) Enforcement Programs in Virginia
Author: Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 148
Book Description
Red light running, which is defined as the act of a motorist entering an intersection after the traffic signal has turned red, caused almost 5,000 crashes in Virginia in 2003, resulting in at least 18 deaths and more than 3,800 injuries. In response to a June 2, 2004, directive from Virginia Secretary of Transportation Whittington W. Clement, an evaluation of the photo-red enforcement programs that operate in Virginia was undertaken. Generally, Virginia's photo-red programs are technically feasible. Case law strongly indicates that the programs pass legal muster in the three key areas: privacy, equal protection, and due process, and public opinion surveys suggest that roughly two-thirds of respondents support red light cameras. There is, however, a practical issue with regard to issuing citations for out-of-state motorists, as noted in the report. Although an economic analysis was not feasible in the study time frame, a limited fiscal analysis suggests that, in general, Virginia localities are not generating net revenue. Finally, an operational analysis based on violations and crashes shows a potential but not definite safety improvement. The cameras clearly affect driver behavior; across the 23 intersections where reliable citation data could be obtained, citations decreased by an average of 21% per intersection. Further the data show that the cameras are correlated with a definite decrease in crashes that are directly attributable to red light running, a definite increase in rear-end crashes, a possible decrease in angle crashes, a net decrease in injury crashes attributable to red light running, and an increase in total injury crashes. More time is needed to determine whether the severity of the eliminated red light running crashes was greater than that of the induced rear-end crashes. The report recommends that Virginia's photo-red enforcement programs be continued for an additional year to resolve this question and to collect additional data that was not feasible during the 6-month time frame of this report.
Analysis of Red Light Violation Data Collected from Intersections Equipped with Red Light Photo Enforcement Cameras
Author: Statistics for Engineering and the Sciences
Author: William M. MendenhallPublisher: CRC Press
ISBN: 1498728871
Category : Mathematics
Languages : en
Pages : 1183
Book Description
Prepare Your Students for Statistical Work in the Real WorldStatistics for Engineering and the Sciences, Sixth Edition is designed for a two-semester introductory course on statistics for students majoring in engineering or any of the physical sciences. This popular text continues to teach students the basic concepts of data description and statist
Intersection Safety Issue Briefs
Author: ITS Sensors and Architectures for Traffic Management and Connected Vehicles
Author: Lawrence A. KleinPublisher: CRC Press
ISBN: 1351800965
Category : Technology & Engineering
Languages : en
Pages : 518
Book Description
An intelligent transportation system (ITS) offers considerable opportunities for increasing the safety, efficiency, and predictability of traffic flow and reducing vehicle emissions. Sensors (or detectors) enable the effective gathering of arterial and controlled-access highway information in support of automatic incident detection, active transportation and demand management, traffic-adaptive signal control, and ramp and freeway metering and dispatching of emergency response providers. As traffic flow sensors are integrated with big data sources such as connected and cooperative vehicles, and cell phones and other Bluetooth-enabled devices, more accurate and timely traffic flow information can be obtained. The book examines the roles of traffic management centers that serve cities, counties, and other regions, and the collocation issues that ensue when multiple agencies share the same space. It describes sensor applications and data requirements for several ITS strategies; sensor technologies; sensor installation, initialization, and field-testing procedures; and alternate sources of traffic flow data. The book addresses concerns related to the introduction of automated and connected vehicles, and the benefits that systems engineering and national ITS architectures in the US, Europe, Japan, and elsewhere bring to ITS. Sensor and data fusion benefits to traffic management are described, while the Bayesian and Dempster–Shafer approaches to data fusion are discussed in more detail. ITS Sensors and Architectures for Traffic Management and Connected Vehicles suits the needs of personnel in transportation institutes and highway agencies, and students in undergraduate or graduate transportation engineering courses.
Economics of Crime and Enforcement
Author: Anthony M. YezerPublisher: Routledge
ISBN: 1317472454
Category : Business & Economics
Languages : en
Pages : 395
Book Description
This text is designed for use in a course on the economics of crime in a variety of settings. Assuming only a previous course in basic microeconomics, this innovative book is strongly linked to the new theoretical and empirical journal literature. Showing the power of microeconomics in action, Yezer covers a wide array of topics. There are chapters on the following topics: benefit-cost and the imprisonment decision, enforcement games, juvenile crime, private enforcement, economics of 3 strikes law, broken windows strategies, police profiling, and crime in developing countries. There are also separate chapters on guns, drugs, and capital punishment. Timely boxed examples are found throughout. Problems at the end of each chapter allow students to reinforce their microeconomics skills and to gain insight into the way they can be applied to case examples.
The Handbook of Road Safety Measures
Author: Rune ElvikPublisher: Emerald Group Publishing
ISBN: 1848552513
Category : Transportation
Languages : en
Pages : 1137
Book Description
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.