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.
DOT uses a two-phase process for selecting and funding transportationprojects for the five discretionary programs we reviewed. In the firstphase, FHWA program staff in the field and headquarters compile andevaluate the applications that states submit for discretionary funding.Program staff screen the applications by applying eligibility criteriaest
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Of the 169 accidents that involved the major airlines and that wereinvestigated and reported on in detail by the National TransportationSafety Board from 1983 through 1995, about 30 percent were caused inpart by the pilots’ performance, according to our analysis. In at leastone-third of these accidents (about 15), we determined that the pilots didn
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This report documents the first phase of a continuing research effort carried out by the Norman Y. Mineta International Institute for Surface Transportation Policy Studies (IISTPS) on behalf of the U.S. Department of Transportation. It comprises a chronology of attacks on surface transportation systems; four case studies of transportation security
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The Federal Highway Administration has worked cooperatively with theAmerican Association of State Highway and Transportation Officials indeveloping and updating the pavement design guide. The current guide isslated to be updated by the year 2002 to better reflect the changing priorityof rehabilitating the nation’s highways rather than building new
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This report document an oversight study of fare collection practices in the transit industry. The oversight was designed as an investigation of practices currently used in the transit industry to evaluate the impact of farebox revenue collection and control issues as related to the development and implementation of revenue fare structures, fare ins
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Through the last half of the 19th century and most of the 20th century, increases in transportation productivity came directly from massive capital investment in the modal systems. With the completion of the Interstate highway system the focus has changed. Fiscal constraints preclude system expansion at the pace needed to support continued robust e
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In support of the Federal Railroad Administration of the United States Department of Transportation, the Institute for Telecommunication Sciences (ITS) has completed a field spectrum uitilization survey designed to examine individual channel utilization and message length distributions. The measurement system was developed by ITS staff members to m
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While license suspension/revocation has been shown to be effective, it is also known that most suspended/revoked (S/R) drivers violate their illegal driving status and continue to drive, accruing traffic convictions and becoming involved in crashes. In an attempt to strengthen license actions and to better control S/R and unlicensed drivers, Califo
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The envisioned operational tests of Advanced Traveler Information Systems (ATIS) and Advanced Traffic Management Systems (ATMS) in the Minneapolis/St. Paul area call for the provision of timely and reliable travel times over an entire rod network. Unfortunately, travel time cannot be directly measured by certain new detection technologies, such as
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The Oklahoma Department of Transportation (ODOT) recently completed a project that included a Strengthened Earth Wall. The Mechanically Stabilized Earth (MSE) wall was constructed by Muskogee Bridge Company as a part of project IM-NHIY-44-2(349)231 on I-4.
The Occupational Safety and Health Administration (OSHA) amended 29 CFR Part 1910 in 1991 to include regulations addressing occupational exposure to bloodborne pathogens (BBP). The rule affects all employees who have the potential for occupational exposure to these pathogens. An accident scene presents significant challenges in terms of implementin
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In September 1994 the U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) distributed a short survey on nondestructive testing practices to each of the 50 state Departments of Transportation (DOTs). The compilation of results constituted Phase 1 of a multiphase effort intended to lead toward the development of a method for optimizing
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Time-domain reflectometry is useful for measuring the moisture content of solids. However, little information exists on its use with portland cement concrete. By monitoring the response from TDR sensors embedded in concrete as the concrete dried, the authors developed a second-order polynomial equation that relates dielectric constant to moisture c
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This report presents the results of Phase 1 of a comparison of the potential air quality effects of alternative transportation fuels. The focus is on reformulated gasoline (RFG), methanol blended with 15% gasoline (M85), and compressed natural gas (CNG). The fuels are compared in terms of their effects on simulated future concentrations of ozone an
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The Multi-Modal Traveler Information System (MMTIS) project involves a large number of Intelligent Transportation System (ITS) related tasks. It involves research of all ITS initiatives in the Gary-Chicago-Milwaukee (GCM) Corridor which are currently deployed as well as proposed ITS identified in regional strategic plans and early deployment studie
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The Multi-Modal Traveler Information System (MMTIS) project involves a large number of Intelligent Transportation System (ITS) related tasks. It involves research of all ITS initiatives in the Gary-Chicago-Milwaukee (GCM) Corridor which are currently deployed as well as proposed ITS identified in regional strategic plans and early deployment studie
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The U.S. Coast Guard Marine Safety Center was established in 1986 as a consolidation of district Merchant Marine Technical Offices. Our offices are located on the sixth floor of the DOT Headquartersbuilding in Washington, DC. This document provides a brief overview of our unit?s organization, responsibilities, and activities. It is periodically upd
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