Research to Support Evaluation of Truck Size and Weight Regulations (2019) / Chapter Skim
Currently Skimming:
Pages 31-38
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 31... ...
31 3 Conclusions The following conclusions about research needs and priorities are derived in part from the committee's examination of the experience of the USDOT 2016 truck size and weight limits study (FHWA 2015a, 2016a) and the 2015 TRB committee review of the technical analysis of the USDOT study (TRB 2015)
|
From page 32... ...
32 EVALUATION OF TRUCK SIZE AND WEIGHT REGULATIONS capabilities to project the consequences of proposed changes in truck size and weight limits. Research could reveal important opportunities to im prove safety and productivity and to control highway construction and maintenance costs through better regulatory and management decisions.
|
From page 33... ...
CONCLUSIONS 33 and weight limit evaluations and also produce results with broader applica tions for highway management. For example, research on the determinants of bridge deck performance would have value for bridge lifecycle cost analysis, design, and asset man agement.
|
From page 34... ...
34 EVALUATION OF TRUCK SIZE AND WEIGHT REGULATIONS NEED TO MATCH RESEARCH TO POLICY OBJECTIVES The TRB 2002 and 2015 committees recommended that the objective of evaluations of truck size and weight limits should be to identify policies that would increase public benefits through improved operation of the highway freight transportation system: The best way to control the costs of accommodating existing and future truck traffic is by coordinating practices in all areas of highway manage ment: design and maintenance of pavement and bridges; highway user regulations; and highway user fees…. Whenever Congress contemplates changing policy in any one of these three areas in the federal aid highway program, it should at the same time consider the need for complementary changes in the other two.
|
From page 35... ...
CONCLUSIONS 35 nationwide change in regulations are likely to differ from any dimension ally similar vehicles in use before the change with respect to loads, routes, equipment characteristics, and operator characteristics. For example, since federal law legalized use of twin 28ft trailers in 1983, the predominant users of this configuration have been nationwide parcel and lessthan truckload carriers, but most prior use had been intrastate carriage of agri cultural products (TRB 1986, 75–80)
|
From page 36... ...
36 EVALUATION OF TRUCK SIZE AND WEIGHT REGULATIONS following are some of the technologies in truck transportation and trucking regulation that may become more important over the next 10 to 15 years and the truck costs that they will affect: • Platooning: truck freight cost, safety, and pavement and bridge costs. • Advanced driver assistance systems, including electronic stability control and collision avoidance: crash risk (in particular, for multi trailer combinations)
|
From page 37... ...
CONCLUSIONS 37 improved projections of particular categories of impacts are necessary, then the roadmap projects that address these impacts can guide the research. The committee was not charged with recommending the internal organiza tion of USDOT research, but presumably most federal research projects in the roadmap would involve collaboration among FHWA offices (includ ing the freight, research, infrastructure, policy, and safety offices)
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.