Vehicle Accidents In Highway Work Zones
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Vehicle Accidents In Highway Work Zones
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Author : Bradley T. Hargroves
language : en
Publisher:
Release Date : 1981
Vehicle Accidents In Highway Work Zones written by Bradley T. Hargroves and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Roads categories.
The objective of this study was to determine the magnitude and characteristics of safety problems, in terms of reported accidents, that are associated with moving vehicular traffic around and through highway work zones. This was accomplished by examining the 2,127 reported work zone accidents that occurred in 1977 in Virginia. These represented roughly 1.5% of all reported accidents. It was estimated, however, that due to the sampling procedure, only about 82% of the total number of (reported) work zone accidents were identified. Examined were work zone accidents, general and specific locations of the accidents, time of the accidents, roadway and environmental factors, characteristics of the work zone, causes of the accidents, and accident severity. Where data were available, comparisons of accidents were made of the characteristics of the work zone accidents to those found in the literature and to those for all Virginia accidents.
Vehicle Accidents In Highway Work Zones
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Author :
language : en
Publisher:
Release Date : 1981
Vehicle Accidents In Highway Work Zones written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Roads categories.
The objective of this study was to determine the magnitude and characteristics of safety problems, in terms of reported accidents, that are associated with moving vehicular traffic around and through highway work zones. This was accomplished by examining the 2,127 reported work zone accidents that occurred in 1977 in Virginia. These represented roughly 1.5% of all reported accidents. It was estimated, however, that due to the sampling procedure, only about 82% of the total number of (reported) work zone accidents were identified. Examined were work zone accidents, general and .specific locations of the accidents, time of the accidents, roadway and environmental factors, characteristics of the work zone, causes of the accidents, and accident severity. Where data were available, comparisons of accidents were made-of the characteristics of the work zone accidents to those found in the literature and to those for all Virginia accidents.
Safety By Design
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Author : Daniel C. Murray
language : en
Publisher:
Release Date : 2005
Safety By Design written by Daniel C. Murray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Roads categories.
As the U.S. population and economy continue to grow, more pressure is being placed on the nation's road and bridge infrastructure today than at any point in history. This growth has left the nation's system of roads and bridges in a perpetual state of repair. As all motorists are aware, road maintenance and construction work projects often cause significant traffic congestion, as well as contribute to an increasing number of accidents and fatalities. Work zone-related crashes that involve large trucks are often more serious and more likely to result in fatalities. In order to mitigate the consequences of large truck crashes in work zones, research is needed to understand the causes of truck accidents in work zones and from those findings, develop appropriate countermeasures to reduce the frequency and severity of large truck work zone crashes. The American Transportation Research Institute (ATRI) initiated this research to investigate the factors that contribute to truck-involved work zone accidents. The research first looked at characteristics of large truck-involved work zone crashes and found that differences exist in the time of day and day of week of occurrence, as well as the number of vehicles typically involved and the type of crash (rear-end, sideswipe, etc.) for large truck work zone crashes versus all work zone crashes. Additionally, the research identified several work zone geometric and traffic control device considerations which may improve large truck safety in work zones, including lane and shoulder widths, and signage. The research also determined that a number of knowledge gaps still exist as related to the underlying causes or contributory factors related to large truck crashes in work zones, such as exposure, driver behavior, and work zone design. Finally, the research proposes a number of potential countermeasures to improve large truck safety in work zones.
Safety Study
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Author : United States. National Transportation Safety Board
language : en
Publisher:
Release Date : 1992
Safety Study written by United States. National Transportation Safety Board and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Roads categories.
Accident And Speed Studies In Construction Zones
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Author : Jerry L. Graham
language : en
Publisher:
Release Date : 1977
Accident And Speed Studies In Construction Zones written by Jerry L. Graham and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Roads categories.
The report includes results of two studies of construction zone traffic control. The first study involved analysis of traffic accidents occurring in 79 zones in seven states. Results indicate a before to during accident rate increase of 6.8%. Results also include breakdowns by accident types, severity, light conditions, roadway type, area type, work area roadway type, construction type and state. The second study was field testing of speed reduction methods. Speeds, erratic maneuvers and conflicts were measured at three sites--an urban freeway, a rural freeway, and an urban street. The field studies examined the effect of the following construction zone parameters on vehicle speeds and safety: Sequential flashing arrow boards; speed zoning (advisory and regulatory); enforcement; transverse striping; obliteration of nonappropriate pavement markings; taper length; lane width reduction; and active warning of speed zoning. Recommended guidelines for construction zone traffic controls are also included.
Effective Countermeasures To Reduce Accidents In Work Zones
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Author : Vicki Walker
language : en
Publisher:
Release Date : 1999
Effective Countermeasures To Reduce Accidents In Work Zones written by Vicki Walker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Roads categories.
Nationally, work zone fatalities peaked at over 800 per year during the 1990s. Arizona tallied 82 fatal and 5,009 injury accidents in work zones during a five year period. In response to this problem, the objectives of this project included: Characterizing the nature of work zone accidents in Arizona; Reviewing countermeasures used throughout the country, and the effectiveness of those countermeasures; and Recommending countermeasures for use in Arizona to improve work zone safety and reduce accidents. A national review of work zone countermeasures was conducted, focussing on the documented effectiveness of various work zone countermeasures. To identify which countermeasures are most appropriate for use in Arizona, a panel of 21 experts was convened. The panel included representatives with a variety of perspectives on the work zone accident problem. The panel selected six principal countermeasures for implementation in Arizona: 1) Work Zone Speed Limits; 2) Police Presence; 3) Speed Limit Enforcement; 4) Public Education; 5) Sign Credibility; and 6) Temporary Pavement Markings in Work Zones.
Traffic Safety Evaluation Of Nighttime And Daytime Work Zones
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Author : Gerald L. Ullman
language : en
Publisher:
Release Date : 2008
Traffic Safety Evaluation Of Nighttime And Daytime Work Zones written by Gerald L. Ullman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Transportation categories.
TRB¿s National Cooperative Highway Research Program (NCHRP) Report 627: Traffic Safety Evaluation of Nighttime and Daytime Work Zones explores the crash rates for nighttime and daytime work zones and examines management practices that promote safety and mobility in work zones. The report also highlights work-zone crash reporting suggestions designed to help improve the data collected on work zone crashes.
Highway Work Zone Safety
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Author : United States. National Transportation Safety Board
language : en
Publisher:
Release Date : 1992
Highway Work Zone Safety written by United States. National Transportation Safety Board and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Roads categories.
This study addresses the adequacy of traffic safety in work zones. The specific safety issues discussed in this study are: the usefulness of work zone accident data; the hazards of two-lane, two-way operations without positive separation of traffic on a normally divided highway; the use of truck-mounted attenuators in moving/maintenance operations and at long-term construction sites; the placement of flaggers; the need to identify design changes in work zones that will aid drivers with degraded sensory perceptions resulting from aging, inattentiveness, or impairment; the lack of compliance with existing guidelines for work zone traffic control devices and procedures; and the need for a national work zone safety program. Recommendations concerning these issues were made to the National Highway Traffic Safety Administration, the Federal Highway Administration, and the American Association of State Highway and Transportation Officials.
Accident Characteristics At Construction And Maintenance Zones In Urban Areas
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Author : Nicholas J. Garber
language : en
Publisher:
Release Date : 1990
Accident Characteristics At Construction And Maintenance Zones In Urban Areas written by Nicholas J. Garber and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Pavements categories.
Safety at construction and maintenance zones is now considered as one of the major concerns of traffic and highway engineers, particularly in urban areas where the installation of work zones significantly affect the flow of traffic . This issue is getting more important as greater emphasis is placed on maintenance and rehabilitation work rather than on new construction, resulting in the proliferation of work zones in the nation's highways. Preliminary analysis of accident data at urban workzones in Virginia indicates that accident rates tend to be significantly higher when work zones coupled with the expected increase in traffic volume will result in significant increase in accident rates, unless effective measures are taken to increase safety at these work zones. The identification of effective safety counter measures at urban work zones, however, requires a clear understanding of work zone accident characteristics and knowledge of the effectiveness of different traffic control devices commonly used. A study was therefore conducted to identify the predominant accident characteristics in urban work zones in Virginia and to evaluate the effectiveness of different traffic control devices in reducing the increase in accident rates during periods of work zone activities. This paper presents the results of statistical analyses of accident data for different work zones and the predominant accident characteristics identified from these analyses. While significant increase in accident rates were observed, there was no significant difference observed in type and severity of accidents. For the covering abstract of this Conference see IRRD abstract number 853851.
Vehicle Accidents At Maintenance And Utility Work Zones
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Author : Bradley T. Hargroves
language : en
Publisher:
Release Date : 1978
Vehicle Accidents At Maintenance And Utility Work Zones written by Bradley T. Hargroves and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
The objective of this study was to determine the magnitude and characteristics of safety problems, in terms of reported accidents, that are associated with moving vehicular traffic around and through highway maintenance and utility work zones. This was accomplished by examining 280 maintenance and utility work zone accidents that occurred on the Virginia state highway network over a period of 14 months. These represented approximately 0.4% of the total number of accidents reported during that period. A review of accident reporting procedures, however, indicated that the sample of accidents examined did not include a variety of work zone accidents where the roadway was not under physical repair (e.g., sweeping and landscaping) or where the first event in the accident was not related to the work activity (e.g., driver falling asleep). The report discusses several characteristics of the maintenance and utility work zone accidents including general and specific locations of the accident, time of the accident, roadway and environmental factors, characteristics of the work zone, cause of the accident, and accident severity. Where data were available comparisons were made between the maintenance and utility work zone accidents and all reported accidents.