Download or read book Research on the Safety Impacts of Speed Limiter Device Installations on Commercial Motor Vehicles phase II written by U.s. Department of Transportation and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on the safety impacts of speed limiter device installations on commercial motor vehicles : phase II.

Download or read book Research on the Safety Impacts of Speed Limiter Device Installations on Commercial Motor Vehicles written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Safety Impacts of Speed Limiter Device Installations on Commercial Trucks and Buses written by Richard Bishop and published by Transportation Research Board. This book was released on 2008 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Research sponsored by the Federal Motor Carrier Safety Administration."

Download or read book Research on the safety impacts of speed limiter device installations on commercial motor vehicles written by and published by . This book was released on 2012 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Safety Impacts of Speed Limiter Device Installations on Commercial Trucks and Buses written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Safety Impacts of Speed Limiter Device Installations on Commercial Trucks and Buses written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commercial Motor Vehicle Speed Control Safety written by and published by . This book was released on 1991 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maximum Safe Speed for Motor Vehicles written by United States. National Highway Safety Bureau and published by . This book was released on 1969 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CTBSSP Synthesis 16 written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impact of Behavior based Safety Techniques on Commercial Motor Vehicle Drivers written by Jeffrey Scott Hickman and published by Transportation Research Board. This book was released on 2007 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's Commercial Truck and Bus Safety Synthesis Program (CTBSSP) Synthesis 11: Impact of Behavior-Based Safety Techniques on Commercial Motor Vehicle Drivers explores various strategies designed to increase safety-related driving behaviors and decrease at-risk driving behaviors of commercial motor vehicle drivers. The report also examines innovative and successful behavior-based safety practices in commercial vehicle settings.

Download or read book Evaluation Study on Speed Limitation Devices written by and published by . This book was released on 2014 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The installation of speed limiters and Intelligent Speed Adaption Systems (ISA) is believed to be an effective way to improve road safety and to reduce emissions and traffic noise. It addresses specifically unadapted driving speed, which is one of the main causes of traffic accidents, particularly on motorways. Speed policies can be regarded as being complementary to other policies that affect other causes of accidents or emissions, such as vehicle and energy technology, alcohol use or unsafe infrastructure. Directive 92/6/EEC required speed limitation devices to be installed on large Heavy Goods Vehicles HGVs and buses (N3 and M3 vehicles). In 2002, this "Speed Limitation Directive" was amended by Directive 2002/85/EC, which obliged all Heavy Commercial Vehicles (HCVs), so also N2 and M2 vehicles, to be equipped with speed limiters. Directive 2002/85/EC requires the Commission to evaluate its road safety and traffic impacts. In this context, the European Commission commissioned Transport and Mobility Leuven, CE Delft, TRT and TNO to carry out this evaluation study.

Download or read book A Synthesis of Safety Implications of Oversize overweight Commercial Vehicles written by and published by AASHTO. This book was released on 2009 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this report is to identify known relationships between commercial vehicle safety and crash causation factors and to prepare a synthesis of safety implications of oversize/overweight (OS/OW) commercial vehicles. This information can be used to support commercial vehicle enforcement and permitting practices and justify expenditures and investments on size and weight enforcement to enhance safety. In producing this report, insight was gained into the impacts of truck size and weight (TSW) regulations through three case studies. The state of practice in estimating large truck crash rates is complicated because of the many configurations and the wide range of possible weights for any particular configuration. This report highlights four primary findings regarding the contributions of OS/OW to commercial vehicle crashes found by its researchers.

Download or read book Safety Impacts and Other Implications of Raised Speed Limits on High speed Roads written by Kara Kockelman and published by . This book was released on 2006 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Research Results Digest 303: Safety Impacts and Other Implications of Raised Speed Limits on High-Speed Roads explores the effects of raised speed limits from 55 miles per hour or greater on freeways and non-freeways in rural and urban settings. The effects considered included impacts on safety and operations, as well as socioeconomic and environmental effects. The full report is available on the TRB website as NCHRP Web-Only Document 90.

Download or read book Commercial Motor Vehicle Driver Fatigue Long Term Health and Highway Safety written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-09-12 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are approximately 4,000 fatalities in crashes involving trucks and buses in the United States each year. Though estimates are wide-ranging, possibly 10 to 20 percent of these crashes might have involved fatigued drivers. The stresses associated with their particular jobs (irregular schedules, etc.) and the lifestyle that many truck and bus drivers lead, puts them at substantial risk for insufficient sleep and for developing short- and long-term health problems. Commercial Motor Vehicle Driver Fatigue, Long-Term Health and Highway Safety assesses the state of knowledge about the relationship of such factors as hours of driving, hours on duty, and periods of rest to the fatigue experienced by truck and bus drivers while driving and the implications for the safe operation of their vehicles. This report evaluates the relationship of these factors to drivers' health over the longer term, and identifies improvements in data and research methods that can lead to better understanding in both areas.

Download or read book Potential Safety Benefits of Motor Carrier Operational Efficiencies written by Ronald R. Knipling and published by Transportation Research Board. This book was released on 2011 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's Commercial Truck and Bus Safety Synthesis Program (CTBSSP) Synthesis 20: Potential Safety Benefits of Motor Carrier Operational Efficiencies addresses risk avoidance strategies and highlights their use and perceived safety effects. The report is designed to assist motor carriers in deploying their vehicles in ways that may minimize crash risk.

Download or read book Safety Impacts of Different Speed Limits on Cars and Trucks written by David L. Harkey and published by . This book was released on 1994 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study were to determine whether differential or uniform speed limits are more beneficial to transportation safety and traffic operations on Interstate highways. The approach to achieving this objective was to examine speed and accident data from States employing both types of limits. Speed data were collected in 12 States at rural and urban locations representing all speed limits currently established on the Interstate highway system for cars/trucks, i.e., 55/55 mi/h (89/89 km/h), 65/55 mi/h (105/89 km/h), 65/60 mi/h (105/97 km/h), and 65/65 mi/h (105/105 km/h). Accident data were obtained from nine States which were geographically distributed across the country and representative of all rural Interstate speed limits currently established. For the speed data collected, a number of measures of effectiveness (MOEs) were examined including mean speed, speed variance, compliance, and speed distribution measures. For the accident data collected, types of crashes were examined (e.g., rear-end) along with vehicle type involvement (e.g., car-into-truck) and crash severity. This final report summarizes the effects of uniform and differential speed limits on transportation safety and traffic operations as determined by the examination of speed and accident data.

Download or read book Assessment of Operational and Safety Impacts of Various Traffic Control Devices written by Megat Usamah Bin Megat Johari and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatal crashes have been increasing, both in Michigan and across the United States, despite continuing improvements in roadway design, vehicle safety, and other areas. Various factors may have contributed to this trend, including increased in-vehicle distractions, higher speed limits, legalization of marijuana, and other factors. Studies have suggested that driver error is a critical reason associated with more than 90 percent of all traffic crashes. Driver behavior can be improved by several engineering strategies, such as the use of better and more efficient traffic control devices, such as signs, signals, and pavement markings. To that end, this research assesses the operational and safety impacts of a series of traffic control devices.The use of dynamic message signs (DMS) as a medium to display safety messages to drivers has become popular among transportation agencies. Despite their widespread use, evaluations as to the resultant impacts on traffic crashes have been very limited. This study addresses this gap in the extant literature and assesses the relationship between traffic crashes and the frequency with which various types of safety messages are displayed. A series of count models are estimated to examine total, speeding-related, and nighttime crashes based upon historical messaging data while controlling for other site-specific factors. Ultimately the results provide important insights regarding messaging strategies for transportation agencies. This research also evaluates driver response to advisory speed signs. Posted speed limit signs are used to inform drivers of the legal maximum allowable speed. In contrast, advisory speed signs provide recommendations to drivers as to safe travel speeds at specific roadway locations. Various studies have investigated the safety impacts of speed limit changes, particularly on high-speed rural highways. One area of particular concern on such roadways is the approach to exit ramps that require substantive speed reductions, such as loop ramps. To date, there has been limited research examining the safety impact of the differential between the mainline speed limit and the lower exit ramp advisory speeds. This study addresses this gap through the estimation of a series of safety performance functions. The findings from this study show the safety of these locations is related to speed differential, as well as other factors such as the length of the upstream deceleration lane. These factors should be considered when considering speed limit policy impacts in the vicinity of full and partial cloverleaf interchanges.Lastly, this study assesses the use of dynamic speed feedback sign (DSFS) as a means to reduce vehicle speeds in speed transition zones, where speeds are reduced as drivers enter rural communities. DSFS have been evaluated in several settings, including high-speed exit ramps and horizontal curves. However, research is limited as to the effectiveness of this sign for other purposes, such as these high-speed transition areas. This is particularly important as the limits on some of these roadways have recently been increased, making speed control a particular concern. This study addresses this gap through a before-and-after evaluation of DSFS at five different sites in northern Michigan. A series of speed models were estimated, which provide insights on the effectiveness of DSFS.