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.
Certain generic functions need to be performed in most modern hump yards, including: Control of retarders; Control of switches; Control of signals/communications requirements of yard engine movements; Yard inventory tracking; Receive/process/transmit advance train consist information; Receive/process/transmit accounting and financial information su
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The scope of this project is twofold:1. The primary aim of this project is to find a number of highly qualified interior and exterior latex paints.2. The secondary aim is to develop, where necessary, suitable methods for the rapid evaluation of such paints.
The need to reduce fuel consumption and conserve natural resources have been items of ever-increasing importance during recent years. This report discusses a project in which almost 50,000 tons of asphalt concrete placed to carry detour traffic during a freeway reconstruction were subsequently salvaged and recycled to overlay a section of State sec
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This report analyzes data on the health effects of bicycling in an urban environment through intensive study of ten healthy male subjects bicycling or driving in systematically varied conditions in the streets of Washington, D.C. Evaluation criteria for available technology and instrumentation are included and a methodology is developed for route s
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Work has suggested that the effects of psychoactive drugs on visual performance may best be understood, and/or predicted, by studying differential effects of the drugs on functionally differentiated sets of neurones in visual projection systems in the brain.This study demonstrates that the nucleus rotundus, an avian posterior thalamic visual relay
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Transverse cracking is a form of environmental deterioration that accounts for the expenditure of some twenty million dollars a year in maintenance in west Texas alone. This form of deterioration has not been predictable by previous mechanisms. A study of the environment in west Texas and installations of psychrometers beneath new construction show
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To conduct post-construction testing and evaluation of a sulfur-asphalt binder concrete pavement test section located on U.S. 69, 15 miles north of Lufkin, Texas.
To conduct post-construction testing and evaluation of a sand asphalt-sulfur experimental test section located on U.S. 77 in Kenedy County, Texas, in District 21 of the Texas State Department of Highways and Public Transportation.
This study evaluated the effect of a given thickness of asphaltic concrete overlay in rehabilitating 53 test sections conforming to the experiment design. This factorial design specified various levels of traffic intensity and overlay thickness for both rigid and flexible pavements. Secondary variables considered were existing pavement structure co
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Stress and anxiety levels were measured in 10 air traffic control specialists (ATCS) at two low-traffic-density towers, Fayetteville (FYV), Arkansas, and Roswell (ROW), New Mexico, and in 24 flight service (FS) specialists at Oklahoma City (OKC), Oklahoma, Fayetteville, Arkansas, and Roswell, New Mexico.Physiological measurements consisted of heart
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A 10-item, voluntary questionnaire answered by 674 flight and ground schools provided information on1.the conduct of formal instruction about disorientation,2.the occurrence and content of lectures on disorientation,3.use of on-the-ground demonstrations of disorientation,4.use of in-the-air demonstrations of disorientation,5.use of films on pilot v
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A study was made to determine the cause or causes of differences in cambers that occur in prestressed concrete beams of identical design for highway bridges. Beams of AASHTO Type IV, and State Department of Highways and Public Transportation of Texas Types C, 54, B, and A were studied. Data from elevations taken at construction sites were reduced t
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The economic significance of transportation in Texas is highlighted by the relationship between total private expenditures for transportation and economic activity in the state. This report contains estimates of the Texas transportation expenditures from 1959 through 1976 by mode. These estimates show the growth in total transportation expenditures
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The report documents the development and implementation of a one-week training course on a cost-effectiveness analysis procedure for developing a roadside safety improvement program. The project entailed two distinct efforts: (1) development of the course text, instructor's manual, and associated materials, and (2) refinement of the existing comput
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This Instructor's Manual includes specific instructional material relating to presentation of a one-week training course entitled, "Safety Improvement Programming for Roadside Obstacles." The training course, developed by the Texas Transportation Institute (TTI) and the Texas State Department of Highways and Public Transportation (SDHPT), was admin
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This paper presents data from experiments on male rats performed to determine whether drugs which interfere with central amine mechanisms would decrease the lethality of the acaricide chlordimeform (and thus be of potential value as antidotes for accidental poisoning) or increase chlordimeform lethality (and thus should be avoided by aerial applica
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A total of 2,366 employees of the Airway Facilities (AF) Service responded to a detailed questionnaire concerning job satisfaction and such factors as salary, shift schedule, workload, and geographic location.In general, AF employees reported satisfaction with employment by the AF Service, particularly in the areas judged most important by them: sa
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The scope of this report is to describe the results obtained at the end of thirty-six months for the third twelve-month period of this field research project. It includes the construction of test sections and the evaluation period after the project was opened to traffic. Each test section was evaluated using the following techniques:A. Visual Obser
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One of the most severe problems facing the highway community is chloride ion-induced reinforcing steel corrosion and the subsequent deterioration of concrete bridge decks and marine structures. This report presents recommended methods for sampling and testing for both total and water-soluble chloride ion in hardened concrete. The methods are update
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Improved correlations have been developed between the Texas Cone Penetrometer Test N-value and the shear strength of both cohesive and cohesionless soils. Correlations were also developed and compared with existing correlations for several shear strength parameters and the Standard Penetration Test N-value. Both field and laboratory investigations
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