Research To Support Evaluation Of Truck Size And Weight Regulations
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Research To Support Evaluation Of Truck Size And Weight Regulations
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Author : National Academies of Sciences, Engineering, and Medicine (U.S.). Truck Size and Weight Limits Research Plan Committee
language : en
Publisher:
Release Date : 2019
Research To Support Evaluation Of Truck Size And Weight Regulations written by National Academies of Sciences, Engineering, and Medicine (U.S.). Truck Size and Weight Limits Research Plan Committee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Transportation categories.
TRB's Special Report 328: TRB's Truck Size and Weight Limits Research Plan Committee has issued its second and final report, Research to Support Evaluation of Truck Size and Weight Regulations, to the U.S. Department of Transportation. The report presents a research plan to reduce the major sources of uncertainty in projections of the consequences of proposed changes in truck size and weight limits. The report defines a program of 27 coordinated research projects in six areas. The committee acknowledges that improvements in models for projecting impacts of changes in truck size and weight limits, while necessary, will not guarantee the success of future truck size and weight policy studies. Future studies will be useful as guides for decisions only if policy objectives and practical policy options are clearly defined, the analysis is logically structured to reveal the most promising policies, and uncertainties are properly characterized. The committee issued its first report in April 2018, which summarized the research recommendations of past truck size and weight limit studies and identified criteria for deciding the priority of topics for inclusion in the research plan.
Regulation Of Weights Lengths And Widths Of Commercial Motor Vehicles
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Author : Transportation Research Board
language : en
Publisher: National Academies Press
Release Date : 2005-07-14
Regulation Of Weights Lengths And Widths Of Commercial Motor Vehicles written by Transportation Research Board and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-07-14 with Transportation categories.
TRB Special Report 267 - Regulation of Weights, Lengths, and Widths of Commercial Motor Vehicles recommends the creation of an independent public organization to evaluate the effects of truck traffic, pilot studies of new truck designs, and a change in federal law authorizing states to issue permits for operation of larger trucks on the Interstates. In 1991, Congress placed a freeze on maximum truck weights and dimensions. Some safety groups were protesting against the safety implications of increased truck size and weight, and the railroads were objecting to the introduction of vehicles they deemed to have an unfair advantage. Railroads, unlike trucking firms, must pay for the capital costs of their infrastructure. The railroads contend that large trucks do not pay sufficient taxes to compensate for the highway damage they cause and the environmental costs they generate. Although Congress apparently hoped it had placed a cap on maximum truck dimensions in 1991, such has not proven to be the case. Carriers operating under specific conditions have been able to seek and obtain special exceptions from the federal freeze by appealing directly to Congress (without any formal review of the possible consequences), thereby encouraging additional firms to seek similar exceptions. In the Transportation Equity Act for the 21st Century, Congress requested a TRB study to review federal policies on commercial vehicle dimensions. The committee that undertook the study that resulted in Special Report 267 found that regulatory analyses of the benefits and costs of changes in truck dimensions are hampered by a lack of information. Regulatory decisions on such matters will always entail a degree of risk and uncertainty, but the degree of uncertainty surrounding truck issues is uunusually high and unnecessary. The committee concluded that the uncertainty could be alleviated if procedures were established for carrying out a program oof basic and applied research, and if evaluation and monitoring were permanent components of the administration of trucking regulations. The committee recommended immediate changes in federal regulations that would allow for a federally supervised permit program. The program would permit the operation of vehicles heavier than would normally be allowed, provided that the changes applied only to vehicles with a maximum weight of 90,000 pounds, double trailer configurations with each trailer up to 33 feet, and an overall weight limit governed by the federal bridge formula. Moreover, enforcement of trucks operating under such a program should be strengthened, and the permits should require that users pay the costs they occasion. States should be free to choose whether to participate in the permit program. Those that elected to do so would be required to have in place a program of bridge management, safety monitoring, enforcement, and cost recovery, overseen by the federal government. The fundamental problem involved in evaluating proposals for changes in truck dimensions is that their effects can often only be estimated or modeled. The data available for estimating safety consequences in particular are inadequate and probably always will be. Thus, the committee that conducted this study concluded that the resulting analyses usually involve a high degree of uncertainty. What is needed is some way to evaluate potential changes through limited and carefully controlled trials, much as proposed new drugs are tested before being allowed in widespread use. The committee recommended that a new independent entity be created to work with private industry in evaluating new concepts and recommending changes to regulatory agencies. Limited pilot tests would be required, which would need to be carefully designed to avoid undue risks and ensure proper evaluation. Special vehicles could be allowed to operate under carefully controlled circumstances, just as oversize and overweight vehicles are allowed to operate under special permits in many states. Changes in federal laws and regulations would be required to allow states to issue such permits on an expanded network of highways, under the condition that a rigorous program of monitoring and evaluation be instituted.Special Report 269 Summary
The U S Department Of Transportation S Comprehensive Truck Size And Weight Study Volume Iv Guide To Documentation
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Author :
language : en
Publisher:
Release Date : 2000
The U S Department Of Transportation S Comprehensive Truck Size And Weight Study Volume Iv Guide To Documentation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Truck Weight Limits
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Author : National Research Council (U.S.). Committee for the Truck Weight Study
language : en
Publisher: Transportation Research Board
Release Date : 1990
Truck Weight Limits written by National Research Council (U.S.). Committee for the Truck Weight Study 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 1990 with Business & Economics categories.
To help assess proposals for further changes in federal truck weight limits, Congress requested this study through Section 158 of the Surface Transportation and Uniform Relocation Assistance Act of 1987. To conduct the study, the National Research Council convened a special Transportation Research Board committee with experts in pavements, bridges, highway safety, freight transportation economics, motor vehicle design, highway administration, motor carrier operations, and enforcement of motor vehicle regulations. The study focused on four issues identified in the study request that involve potential changes to federal weight limits for Interstate highways: (1) Elimination of existing grandfather provisions; (2) Alternative methods for determining gross vehicle weight and axle loadings; (3) Adequacy of the current federal bridge formula; and (4) Treatment of specialized hauling vehicles--garbage trucks, dump trucks, and other trucks with short wheel bases that have difficulty complying with the current federal bridge formula. For each of these issues, the study committee estimated the nationwide effects of changes in federal limits proposed by the trucking industry, highway agencies, and other groups. Projections of heavy-truck miles by type of truck, region of the country, highway functional class, and operating weight were developed for a base case and alternative truck weight regulatory scenarios. These projections were then used to estimate impacts on truck costs, pavements, bridges, and safety.
Assessment Of The Effects Of Increased Truck Size And Weight Limits On Shippers And States
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Author : Saul Cohen
language : en
Publisher:
Release Date : 1979
Assessment Of The Effects Of Increased Truck Size And Weight Limits On Shippers And States written by Saul Cohen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Trucks categories.
Itf Research Reports Moving Freight With Better Trucks Improving Safety Productivity And Sustainability
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Author : OECD
language : en
Publisher: OECD Publishing
Release Date : 2011-04-19
Itf Research Reports Moving Freight With Better Trucks Improving Safety Productivity And Sustainability written by OECD and has been published by OECD Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-19 with categories.
This report identifies potential improvements in terms of more effective safety and environmental regulation for trucks, backed by better systems of enforcement, and identifies opportunities for greater efficiency and higher productivity.
Review Of Canadian Experience With The Regulation Of Large Commercial Motor Vehicles
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Author : John H. F. Woodrooffe
language : en
Publisher: Transportation Research Board
Release Date : 2010
Review Of Canadian Experience With The Regulation Of Large Commercial Motor Vehicles written by John H. F. Woodrooffe 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 2010 with Business & Economics categories.
TRB's National Cooperative Highway Research Program (NCHRP) Report 671: Review of Canadian Experience with the Regulation of Large Commercial Motor Vehicles examines the process used in Canada to harmonize heavy truck size and weight regulations across the country. The report provides insights on how lessons learned from the Canadian experience might be applied in the United States.
Criteria For Evaluation Of Truck Weight Enforcement Programs
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Author : Hugh G. Downs
language : en
Publisher: Transportation Research Board National Research
Release Date : 1981-01-01
Criteria For Evaluation Of Truck Weight Enforcement Programs written by Hugh G. Downs and has been published by Transportation Research Board National Research this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981-01-01 with Trucks categories.
Technologies And Approaches To Reducing The Fuel Consumption Of Medium And Heavy Duty Vehicles
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2010-07-30
Technologies And Approaches To Reducing The Fuel Consumption Of Medium And Heavy Duty Vehicles written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-07-30 with Science categories.
Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles evaluates various technologies and methods that could improve the fuel economy of medium- and heavy-duty vehicles, such as tractor-trailers, transit buses, and work trucks. The book also recommends approaches that federal agencies could use to regulate these vehicles' fuel consumption. Currently there are no fuel consumption standards for such vehicles, which account for about 26 percent of the transportation fuel used in the U.S. The miles-per-gallon measure used to regulate the fuel economy of passenger cars. is not appropriate for medium- and heavy-duty vehicles, which are designed above all to carry loads efficiently. Instead, any regulation of medium- and heavy-duty vehicles should use a metric that reflects the efficiency with which a vehicle moves goods or passengers, such as gallons per ton-mile, a unit that reflects the amount of fuel a vehicle would use to carry a ton of goods one mile. This is called load-specific fuel consumption (LSFC). The book estimates the improvements that various technologies could achieve over the next decade in seven vehicle types. For example, using advanced diesel engines in tractor-trailers could lower their fuel consumption by up to 20 percent by 2020, and improved aerodynamics could yield an 11 percent reduction. Hybrid powertrains could lower the fuel consumption of vehicles that stop frequently, such as garbage trucks and transit buses, by as much 35 percent in the same time frame.
The U S Department Of Transportation S Comprehensive Truck Size And Weight Study Volume Ii Issues And Background
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Author :
language : en
Publisher:
Release Date : 2000
The U S Department Of Transportation S Comprehensive Truck Size And Weight Study Volume Ii Issues And Background written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.