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United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation
Author : United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation Publisher : Unknown Page : 122 pages File Size : 53,6 Mb Release : 1994 Category : House & Home ISBN : UCR:31210014042095
Truck Lengths and Safety by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation Pdf
Distributed to some depository libraries in microfiche.
United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation
Author : United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation Publisher : Unknown Page : 158 pages File Size : 41,9 Mb Release : 1994 Category : House & Home ISBN : STANFORD:36105015942316
Truck Lengths and Safety by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation Pdf
Distributed to some depository libraries in microfiche.
Regulation of Weights, Lengths, and Widths of Commercial Motor Vehicles by Transportation Research Board Pdf
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
United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety, and Security
Author : United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety, and Security Publisher : Unknown Page : 110 pages File Size : 55,6 Mb Release : 2015 Category : Fatigue ISBN : STANFORD:36105050684203
Opportunities and Challenges for Improving Truck Safety on Our Highways by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety, and Security Pdf
A Synthesis of Safety Implications of Oversize/overweight Commercial Vehicles by Anonim Pdf
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.
National Research Council (U.S.). Transportation Research Board
Author : National Research Council (U.S.). Transportation Research Board Publisher : National Academies Press Page : 412 pages File Size : 44,9 Mb Release : 1986 Category : Business & Economics ISBN : UOM:39015013043875
Twin Trailer Trucks by National Research Council (U.S.). Transportation Research Board Pdf
TRB Special Report 211: Twin Trailer Trucks examines the potential safety effects of the new federal truck size rules (the Surface Transportation Act of 1982 requires states to permit twin 28-ft trailers on Interstate highways and on principal roads). The study also addressed other effects of the new rules on highway transportation including the trucking industry use of twins, safety consequences of twins, pavement wear and other highway features affected by twins, and safety and pavement wear affected by 48-ft long semitrailers and 102- in. wide trucks. The use of twin trailer trucks will be concentrated in the general freight common carriers sector and will result in a 9% reduction in combination-truck miles in the portion of their hauling that is switched from tractor-semitrailers to twins. It is not expected that either the scope of the current highway network or restrictions on access to that network will have an impact on travel by twins. The increased use of twins will have little overall effect on highway safety. However, twins will accelerate pavement wear and increase rehabilitation costs. The use of 102-in. wide trucks and 48- ft semitrailers (also permitted by the 1982 law) also increases pavement wear. Recommendations are presented that would help coordinate the efforts of various data producers and users of programs that collect nationwide information on truck travel, safety, and highway impact, and thus enhance their ability to provide data addressing policy questions. Recommendations are also made for improving the safety of the vehicles. The various chapters of the book cover the study method and report organization; the historical and regulatory background; use characteristics and cost impacts; safety impacts; highway condition, operation and design impacts; long-term monitoring; and conclusions drawn from the study.
United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Highways, Transit, and Pipelines
Author : United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Highways, Transit, and Pipelines Publisher : Unknown Page : 134 pages File Size : 47,7 Mb Release : 2003 Category : Business & Economics ISBN : STANFORD:36105050339683
Truck Safety and Freight Mobility by United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Highways, Transit, and Pipelines Pdf
United States. Congress. Senate. Committee on Commerce, Science, and Transportation
Author : United States. Congress. Senate. Committee on Commerce, Science, and Transportation Publisher : Unknown Page : 222 pages File Size : 51,6 Mb Release : 1979 Category : Transportation and state ISBN : STANFORD:36105045205460
