The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
The objectives of this publication are to: (A) Develop educators? awareness of the thematic approach to aviation education; (B) Provide guidance for the planning of a thematic aviation education program; (C) Provide an example of a thematic aviation education curriculum; and (D) Provide information for the implementation of a thematic aviation prog
...
A modified Pressurized Flow Simulation Model, PFSM, was developed and attached to the Federal Highway Administration, FHWA, Pool Funded PFP-HYDRA Package. Four hydrograph options are available for simulating inflow to a sewer system under surcharge or pressurized conditions. Several key parameters, such as time-step and print options, are dicussed
...
This report addressed the potential application of interactive videodisc (IVD) technology in the Virginia Department of Transportation (VDOT). The research revealed that IVD is a growing force as a training vehicle in several industries and institutions and pointed to multiple training possibilities for VDOT. Responses to an IVD user survey sent to
...
This report presents the results of a study undertaken to evaluate the installation and performance of two high molecular weight methacrylate monomers used to treat the cracks and seal the surfaces on two bridges on I-81 over the New River. The evaluation is based on data collected during the treatments, skid tests, permeability tests on cores remo
...
This manual was undertaken to record for all persons wishing to do concrete petrography the petrographic procedures that have been found useful here at the Virginia Transportation Research Council. This interim report is made up of the introduction, reading list, sections on sample preparation, and suggestions for further research. The final manual
...
Permanent deformation of asphalt concrete, which is frequently manifested by excessive pavement rutting, has become a problem in much of the United States. Virginia began to experience rutting problems on highways with heavy traffic in the early 1980s. The purpose of this study was to evaluate several promising test procedures that could be used to
...
Concretes with equal water/cement ratios and equal paste volumes of various combinations of cement, fly ash, and silica fume were tested to establish parameters for strength and chloride permeability. Comparative specimens with Type II and Type III cement were tested. The effects of temperature and moisture availability during curing were also eval
...
Novophalt, which is an ethylene vinyl acetate polymer, was used as an asphalt additive in a test section in an attempt to determine whether it is useful in the prevention of rutting. A special blending unit was required to blend the asphalt cement and polymer at the hot-mix plant; however, construction of the control and polymer test sections went
...
This study reports the results of comparative tests on sections of asphalt pavement rolled with conventional steel-wheel rollers and those rolled with a rubber tire roller added between the steel-wheel breakdown and steel wheel finish rollers. Nuclear density and air voids were used as measures of potential differences between sections. Of the 15 p
...
The objective of this research was to evaluate low cost weigh-in-motion systems. The three systems evaluated were (1) a capacitance weigh mat system, (2) a bridge weighing system, and (3) a piezoelectric cable sensor system. All three systems have a two-lane capability. An evaluation was made of (1) the quality of the data, (2) the performance of t
...
This study addresses the problem of queueing on highway facilities, wherein a large number of computerized methods for the analysis of different queueing situations are available. A three-tier classification system of the methodologies was used with the following categories: dedicated techniques, classical queueing theory, and simulation. A knowled
...
This report presents a plan for a timber bridge initiative in Virginia. It addresses (1) the immediate and future potential for using timber in the replacement of many of Virginia's bridges, (2) the available timber resources in Southside Virginia, (3) the wood species best suited for use in Phase I of the initiative, (4) factors affecting the econ
...
Asphalt rubber, which is produced by reacting asphalt cement and crumb rubber, is claimed to increase fatigue life and reduce rutting of asphalt concrete; however, the service life must be increased significantly to offset the additional coast of adding the rubber. In order to assess the performance of asphalt rubber mixtures and how effectively th
...
Links with this icon indicate that you are leaving a Bureau of Transportation
Statistics (BTS)/National Transportation Library (NTL)
Web-based service.
Thank you for visiting.
You are about to access a non-government link outside of
the U.S. Department of Transportation's National
Transportation Library.
Please note: While links to Web sites outside of DOT are
offered for your convenience, when you exit DOT Web sites,
Federal privacy policy and Section 508 of the Rehabilitation
Act (accessibility requirements) no longer apply. In
addition, DOT does not attest to the accuracy, relevance,
timeliness or completeness of information provided by linked
sites. Linking to a Web site does not constitute an
endorsement by DOT of the sponsors of the site or the
products presented on the site. For more information, please
view DOT's Web site linking policy.
To get back to the page you were previously viewing, click
your Cancel button.