Identification Of Methods For Truck Crash Reduction
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Identification Of Methods For Truck Crash Reduction
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Author :
language : en
Publisher:
Release Date : 1999
Identification Of Methods For Truck Crash Reduction written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.
Identification Of Methods For Truck Crash Reduction
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Author :
language : en
Publisher:
Release Date : 1999
Identification Of Methods For Truck Crash Reduction written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Traffic accidents categories.
Developing Mitigation Strategies To Reduce Truck Crash Rates On Wyoming Highways
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Author : Mohammad Mahdi Rezapour Mashhadi
language : en
Publisher:
Release Date : 2018
Developing Mitigation Strategies To Reduce Truck Crash Rates On Wyoming Highways written by Mohammad Mahdi Rezapour Mashhadi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Roads categories.
Wyoming has one of the highest large truck crash rates in the country. This is due to a variety of reasons which include the significant amount of through truck traffic on I-80, adverse weather conditions, challenging geometric conditions, and the increased oil and gas production activities in the state. These factors have caused the Wyoming Highway Patrol (WHP) to allocate extensive resources on inspection of commercial vehicles and enforcement of traffic laws in the state. Because of the heavy truck traffic on Interstate 80, the WHP utilizes much of their resources patrolling and performing inspections. The focus of this research is to identify the primary factors behind the high truck crash rates in Wyoming and then develop mitigation strategies to reduce these high crash rates. A variety of datasets including: crash data, traffic volumes, traffic citations, roadway geometry, and enforcement data were used in this research. Various descriptive, statistical, and GIS methods were employed in this dissertation to identify the contributory factors to truck relate crashes. Based on the results, recommendations were given to the organizations in charge of truck safety in Wyoming. These organizations included: Wyoming Department of Transportation, Wyoming Highway Patrol and Wyoming trucking associations. The findings and recommendations are presented in nine papers that have been published or under review in various journals.
Truck Accident Countermeasures On Urban Freeways
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Author : Dan R. Middleton
language : en
Publisher:
Release Date : 1994
Truck Accident Countermeasures On Urban Freeways 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 1994 with Roads categories.
In addition to fatalities and injuries resulting from truck involved accidents, excessive costs and delays caused by these accidents and incidents have prompted several operating agencies to consider various strategies to reduce the truck accident/incident problem. This study was undertaken to identify truck accident countermeasures implemented in different areas of the U.S. Issues considered when selecting countermeasures for review in this study included urban freeway volumes of 95,000 vehicles per day or higher, a significant number of trucks in the traffic stream (typically 5% or more), and countermeasures involving road design. The study omitted countermeasures directly related to the vehicle and the driver. This project included the following steps: literature search, telephone survey, and field visits to selected sites. The information collected by this project is intended to assist agencies in identifying, selecting, and implementing truck accident countermeasures. Experiences with the following truck accident countermeasures are included in the report: lane restrictions, separate truck facilities, ramp treatments, truck diversions and bans, reduction of shoulder parking, urban truck inspection stations, incident response management, differential speed limit, increased enforcement, tall barriers, and mainlane treatments.
Highway And Traffic Safety
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Author : National Research Council (U.S.). Transportation Research Board
language : en
Publisher:
Release Date : 2000
Highway And Traffic Safety written by National Research Council (U.S.). Transportation Research Board and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Traffic accidents categories.
Transportation Research Record contains the following papers: Method for identifying factors contributing to driver-injury severity in traffic crashes (Chen, WH and Jovanis, PP); Crash- and injury-outcome multipliers (Kim, K); Guidelines for identification of hazardous highway curves (Persaud, B, Retting, RA and Lyon, C); Tools to identify safety issues for a corridor safety-improvement program (Breyer, JP); Prediction of risk of wet-pavement accidents : fuzzy logic model (Xiao, J, Kulakowski, BT and El-Gindy, M); Analysis of accident-reduction factors on California state highways (Hanley, KE, Gibby, AR and Ferrara, T); Injury effects of rollovers and events sequence in single-vehicle crashes (Krull, KA, Khattack, AJ and Council, FM); Analytical modeling of driver-guidance schemes with flow variability considerations (Kaysi, I and Ail, NH); Evaluating the effectiveness of Norway's speak out! road safety campaign : The logic of causal inference in road safety evaluation studies (Elvik, R); Effect of speed, flow, and geometric characteristics on crash frequency for two-lane highways (Garber, NJ and Ehrhart, AA); Development of a relational accident database management system for Mexican federal roads (Mendoza, A, Uribe, A, Gil, GZ and Mayoral, E); Estimating traffic accident rates while accounting for traffic-volume estimation error : a Gibbs sampling approach (Davis, GA); Accident prediction models with and without trend : application of the generalized estimating equations procedure (Lord, D and Persaud, BN); Examination of methods that adjust observed traffic volumes on a network (Kikuchi, S, Miljkovic, D and van Zuylen, HJ); Day-to-day travel-time trends and travel-time prediction form loop-detector data (Kwon, JK, Coifman, B and Bickel, P); Heuristic vehicle classification using inductive signatures on freeways (Sun, C and Ritchie, SG).
A Study Of Selected Warning Devices For Reducing Truck Speeds
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Author : Dan R. Middleton
language : en
Publisher:
Release Date : 1994
A Study Of Selected Warning Devices For Reducing Truck Speeds 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 1994 with Detectors categories.
Providing effective roadside warning devices for drivers of large trucks is critical on freeway connectors where speeds are relatively high but design speeds may be substantially less than on mainlanes. Identifying and testing appropriate methods of monitoring traffic on freeway connectors was also included in this research. Two monitoring systems evolved, one using roadway sensors and the other using roadside sensors. Roadway sensors consisted of both piezoelectric and inductive loop sensors, while roadside sensors applied infrared sensor technology. The roadway warning devices tested can be categorized as passive devices and active devices. Passive devices consisted of "truck tipping" warning signs, while the active device consisted of flashing lights mounted one above and one below a set of passive truck tipping signs on both sides of the roadway. Speed reduction, as associated with accident reduction, was the ultimate goal of these tests. The null hypothesis tested by ANOVA of no treatment effect in the presence of initial speed was rejected in all but one of four models, using the probability of a Type I error, $\\\\alpha, $ equal 0.05. Speed reductions due to the active system were significant in AC and BC data sets, but not in AB data sets, suggesting that truck driver response to the lights occurred downstream of Location B. Truck weights were not significant in any tenable test results, and separation of trucks into the categories of combination and non-combination trucks, peak/off-peak periods, and day/night/dusk periods was not helpful in understanding variations in truck speeds. Cumulative speed distributions showed that the fastest trucks decreased their speeds by approximately 2 to 3 mph (3 to 5 kph) during the test period. Five of the seven single-vehicle truck accidents that were recorded on the I-610/US-59 connector in an 8 1/2 year period that were speed-related resulted in rollover. None occurred after installation of warning treatments being tested, although there were other prior years with no recorded accidents
Determining The Extent And Characteristics Of Overrepresentation Of Large Truck Crashes In Daytime And Nighttime Work Zones
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Author : Naveen Mokkapati
language : en
Publisher:
Release Date : 2010
Determining The Extent And Characteristics Of Overrepresentation Of Large Truck Crashes In Daytime And Nighttime Work Zones written by Naveen Mokkapati and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
The growth of vehicle travel in the United States has accelerated wear on the interstate highway system leading to frequent pavement repair and rehabilitation projects. The presence of work zones not only causes traffic congestion and backup but also increases the crash risk. Therefore, the FHWA (Federal Highway Administration) has allotted a significant amount of funds to improve work zone traffic safety and operations. This thesis compares truck and automobile crash characteristics in work zones with those of non-work zones and thus identifies engineering countermeasures to improve work zone truck safety. The researcher used a contingency analysis approach in this study. First, he categorized the North Carolina crash data using different variables. Once categorized, the Breslow-Day test is used to compare the odds of truck and automobile crashes between work zones and non-work zones. Overall, the researcher did not find a significant difference between odds of truck and automobile crashes compared to previous studies. The researcher believes that the difference in results between the present study and the previous studies could either be due to differences in the approach used or better truck management techniques employed by the North Carolina DOT (Department of Transportation). The researcher also identified that the maintenance projects performed during the day had a significantly higher odds of truck crashes relative to that of automobiles in work zones compared to control sections when workers were present, either with a lane closure or without a lane closure. The researcher believes that the results from the day maintenance projects and its subcategories are the key findings of this study. Therefore, these key findings are used to identify the possible reasons and countermeasures for any disproportionate change in truck to automobile crashes. The identified list of countermeasures includes the use of law enforcement, a smart work zone system, a dynamic late merge system, CMS (Changeable Message Signs), speed display signs, and a CB (Citizen Band) Wizard. These countermeasures were checked for cost effectiveness using a benefit cost (B/C) analysis. The researcher found that law enforcement, smart work zones with costs lower than or equal to half a million dollars, CMS, speed display signs, and the CB Wizard have B/C ratios greater than one and seem to be worthwhile for deployment in work zones. Smart work zones with significantly higher costs of 2.5 million dollars, for example, could be deployed using a more detailed analysis of work zone characteristics. Finally, dynamic late merge system could be used if the site conditions indicate a crash reduction potential of at least 10 -- 15 percent.
Oil Dri Corporation Of Nevada Reno Clay Plant Project
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Author :
language : en
Publisher:
Release Date : 2001
Oil Dri Corporation Of Nevada Reno Clay Plant Project written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Advanced Technologies For Improving Large Truck Safety On Two Lane Secondary Roads
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Author : Nicholas J. Garber
language : en
Publisher:
Release Date : 1995
Advanced Technologies For Improving Large Truck Safety On Two Lane Secondary Roads 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 1995 with Intelligent transportation systems categories.
The use of large trucks has steadily increased since the passage of the Surface Transportation Assistance Act to the point where they now account for over 50% of vehicle traffic on some highways in Virginia. Projections now forecast that large-truck travel will grow at twice the rate of personal vehicle travel in the near future. Although several studies have been conducted to determine the effects of large trucks on safety on multilane primary and interstate highway systems, the effects on two-lane secondary roads have been largely ignored. This study identified the causal factors and predominant types of large-truck crashes on two-lane secondary roads in Virginia and compared the large-truck crash rates for two-lane secondary roads and two-lane primary roads. The study also identified advanced technologies associated with intelligent transportation systems (ITS) that can be used to minimize the causal factors of large-truck crashes on these roads. The results showed that large-truck crash rates are significantly higher on two-lane secondary roads than on two-lane primary roads, with the predominant types of crashes being angle, rear end, sideswipe same direction, and sideswipe opposite direction. The study identified several ITS technologies that can be used to mitigate the predominant causal factors and recommends a pilot study to test the effectiveness of one such system.
Guidance For Implementation Of The Aashto Strategic Highway Safety Plan
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Author :
language : en
Publisher: Transportation Research Board
Release Date : 2003
Guidance For Implementation Of The Aashto Strategic Highway Safety Plan written by 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 Roads categories.