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.
Six different AC-20 asphalt cements were used in a Pennsylvania project in September 1976. Two of the six test pavements developed low-temperature cracking in January 1977. The remaining four test pavements started to develop cracks to different degrees after three years. This project has been well documented in the literature during its 7 years se
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United States. Department of Transportation. National Highway Traffic Safety Administration
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1996-02-01
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This study was undertaken in response to Section 1031(b) of the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA), which required the National Highway Traffic Safety Administration (NHTSA) to conduct a study to determine the benefits of safety belt and motorcycle helmet use in crashes. The study employed methods whereby statewide dat
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This report presents the first phase of a test plan for the use of the Texas Mobile load Simulator (TxMLS]. It was developed through on iterative process of consultation between TxDOT's Pavement Division and its researchers. The scope of this phase was limited to tests conducted in Victoria, Texas (Yoakum District). The guidelines for the selection
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This report documents most of this project's first objective, namely, to update and expand the TRANSBORDER data base. This report discusses all relevant data collected and organized in this project, with the exception of international bridge demand and U.S.-Mexico overland commerce data, which warranted a separate report (Report 2932-2). This repor
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The Advanced Glazing Project of NHTSA is an initiative aimed at reducing the number of fatalities and serious injuries in motor vehicle crashes due to ejection. As part of the project, it was necessary to estimate the numbers of lives saved and serious injuries prevented when ejection is eliminated. This report describes the statistical analysis pe
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This study reviewed the low volume road (LVR) classifications in Kansas in conjunction with the State A, B, C, D, E road classification system and addressed alignment of these differences. As an extension to the State system, an F, G, H classification system for local roads with subclassification relating to access and surface types was recommended
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SRI International is conducting research to characterize and quantitatively describe the early stages of corrosion fatigue in the fuselage skin of commercial aircraft. Specific objectives are to gain an improved deterministic understanding of the transition from corrosion pit to short crack to long crack and to delineate the effects of environment,
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This publication consists of a listing of experimental products that are being or have been evaluated by The Oklahoma Department of Transportation (ODOT), or other transportation agencies. This listing is continuously updated as new information is received. A status of the evaluation is given for each item, showing the progress or result of the eva
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The role of the Flight Progress Strip, currently used to display important flight data, has been debated because of long range plans to automate the air traffic control (ATC) human-computer interface. Currently, the Fight Progress Strip is viewed by many as an indispensable tool needed for the safe and expeditious separation of air traffic. Long te
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Effective thoracic mass is a critical parameter in specifying mathematical and mechanical models (such as crash dummies) of humans exposed to impact conditions. A method is developed using a numerical optimizer to determine effective thoracic mass (and mass distribution) given a number of acceleration signals and a force signal response. Utilizing
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This is a report of the analytical development of qualification guidelines for Personal Computer-based aviation training devices (PCATDs) for use in instrument flight training. The report includes a task analysis of instrument flight tasks, along with baseline and task-specific guidelines that were developed as a result of the analysis. In addition
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Abstract: Instructional flights experience more than 300 crashes annually and are involved in more than one-third of all midair collisions. Research was undertaken to identify the circumstances of instructional crashes and describe factors related to pilots, aircraft, and the environment.
This report describes the initial formative evaluation of the Federal Aviation Administration (FAA) College Training Initiative - Air Traffic Control Specialist (CTI-ATCS) Program. The purpose of the CTI-ATCS program is to test "the concept that non-federal, post-secondary educational institutions can develop, deliver, and implement air traffic con
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A redesigned continuous flow passenger oxygen mask was tested for its ability to deliver an adequate supply of oxygen at an altitude of 40,000 feet above sea level. Four male subjects participated in the study. Blood oxygen saturation (SaO2) baseline levels for hypoxic exposure were established for each subject. Immediately prior to high altitude e
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Future in-vehicle crash avoidance warning systems will inevitably deliver inappropriate alarms from time to time, caused for example, by situations where algorithms have correctly identified an object but pose no threat or danger to the driver. The current state of knowledge does not permit an estimate of how many inappropriate alarms users find un
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Oregon State University. Transportation Research Institute
1996-02-01
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This discussion paper summarizes the literature relating to the use of medians on major roadways. The primary focus is on safety due to the sizable amount of literature in this area and the very limited number of studies relating to such topics as the effect on business, the effect on traffic operations and public attitudes toward medians. The summ
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The objective of this study was to evaluate the feasibility of a state of the art health and usage monitoring system (HUMS) to provide monitoring of critical mechanical systems on the helicopter, including motors, drive train, engines and life limited components. The implementation of HUMS and cost integration with current maintenance procedures wa
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Word Document: A series of fracture tests on large-scale, pre-cracked, aluminum alloy panels were carried out to examine and characterize the process by which cracks propagate and link up in this material. Extended grips and test fixtures were specially designed to tension load the panel specimens in a 1780-kN capacity universal testing machine. Si
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The Hanford Ecorok Packaging (HEP) will be used to ship contaminated water purification filters from K Basins to the Central Waste Complex. This packaging design criteria documents the design of the HEP, its intended use, and the transportation safety criteria it is required to meet. This information will serve as a basis for the safety analysis re
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