This final report is a synthesis of the findings, conclusions, and recommendations of aseries of task reports prepared under a major study that addresses how to overcome theinstitutional barriers to the deployment of Advanced Traffic Management Systems (ATMS)and Advanced Traffic Information Systems (ATIS). This study examined the institutional appr
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The purpose of the study reported here was to examine whether age and spatial ability are factors that influence a driver's ability to navigate and to use navigational displays. These factors were examined because previous research suggests that spatial ability may underlie navigational performance, including route-following and map-reading,and tha
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The Task E report involves an analysis of franchises and license agreements for the provision of publicservices, which is the fourth in a series in the study. Overcoming Barriers to ITS - Lessons from OtherTechnologies. This report follows alternative franchise concepts from beginning to end: starting with thereasons that franchises were adopted. t
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This report summarizes the results of a small, one day symposium held on March 27. 1995 inWashington D.C. as a part of the study being performed by the Urban Institute and itssubcontractors (Cambridge Systematics. Inc.. Miller. Canfield. Paddock and Stone. and MTAEMCI,Inc.) for the Federal Highway Administration. The study is entitled, “OvercomingB
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Aggregate angularity is a significant factor in determining pavement resistance to rutting. Determination of aggregate angularity by direct means allows a more meaningful study of the mechanisms of pavement deformation. However, direct techniques have not been developed sufficiently to allow a more advanced study of angularity effects on pavement.
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This case study examines trucking across the western U.S.-Canada border and how it is influenced by truck size and weight (TS&W) regulations. Western border trucking differs from eastern border trucking in terms of the types of commodities being handled (high quantities of relatively low value, resource-based commodities), the density of truck volu
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The first section of this report presents an overview of impediments to intermodal freight transportation. It identifies types of intermodal impediments based on studies, reports, and interviews with shippers, carriers, public agencies, and others involved in intermodal transportation. The second section provides a brief overview and evaluation of
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United States. Department of Transportation. Federal Highway Administration
1995-12-01
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PDF
The objective of this lesson is to acquaint the student with the historical background surrounding the development of the LRFD Specification. The material presented will provide insight into how the basic decisions regarding the technical basis of the specification were arrived at and how the organization to actually write the specification was dev
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This report has been developed to support the transportation planning needs for urban goods movement and freight planning as promoted by the Intermodal Surface Transportation Efficiency Act of 1991. Characteristics of Urban Freight Systems (CUFS) has been designed to be a compilation of current data that pertain to urban freight movements. Sections
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United States. Department of Transportation. Federal Highway Administration
1995-12-01
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PDF
The Lower Mississippi Delta Development Commission, chaired by then Arkansas Governor Bill Clinton, made recommendations related to developing human capital, natural and physical resources, private enterprise and the environment. As the Commission well understood, improvements to the Delta region, while important in their own right, could not reach
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In phase I methanol plantship (MPS) work sponsored by the Department of Transportation in fiscal years 1985 and 1986, the contractor identified uncontested methane sufficient to operate 130 MPSs for 20 years, each being of 3,000-short tons per day (2,722-t/d) capacity; demonstrated by analyses and by ship model tank tests that long-term efficient m
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Ruggedness testing of the bending beam rheometer (BBR) and the dynamic shear rheometer (DSR) was performed. Four laboratories participated in this effort. Three materials were used for BBR ruggedness testing and four materials were used for DSR ruggedness testing. Measurement of the creep stiffness and m-value at 60 s with the BBR was found to be f
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Periodic paint removal and re-application is necessary to protect steel girder bridges against corrosion. The paint removal operation for bridge maintenance, however, is hazardous to the workers involved in the process and the natural environment. A particular problem is that certain types of paint used on bridges in the past contain toxic lead. Th
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Coal fly ash is a coal combustion by-product (CCB) that has numerous applications as an engineering material; the annual production of CCBs is nearly 82 million metric tons (90 million tons). Since the first edition of this publication in 1986, substantial information has been accumulated regarding the use of fly ash. The purpose of this document i
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Although particle hopping models have been introduced into traffic science in the 1950s, their systematic use has only started recently. Two reasons for this are, that they are advantageous on modern computers, and that recent theoretical developments allow analytical understanding of their properties and therefore more confidence for their use. In
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This document is the third of HEC 18, i.e., presents the state of knowledge and practice for the design,evaluation, and inspection of bridges for scour. It contains updated material not included in the secondedition dated April 1993. This document is a revision to HEC 18 dated April 1993 which, in turn, was anupdate of HEC 18 dated Feburary 1991 an
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