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.
Arizona's canal network is extensive and necessitates the existence of many short bridges on the highway network. The necessity for maintaining access to adjacent canal roads dictates that any barrier installation intended to shield errant vehicles from the bridge rail hazard must fit within the limited space between the bridge end and the canal ro
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This study proposes a conceptual system of 490 miles of improved arterial streets for Harris County, Texas. This system, which has been named the Strategic Arterial Street System (SASS), is proposed to supplement and expand the county-wide high-quality traffic services now supplied by the freeway system. The stimulus for considering a supplemental
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Bridge inspection training was aided by the use of computers in this study. This process was evaluated after ten inspectors had completed thirty-two hours of computer-aided training (CAT). Recommendations were made for the use of these CAT packages. Public Works Training Division installed the hardware and software. The submodules covered substruct
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The objective of this study was to develop guidelines for use of the Iowa Vanestechnique for sediment control in bridge waterways. Iowa Vanes are small flow-trainingstructures (foils) designed to modify the near-bed flow pattern and redistribute flow andsediment transport within the channel cross section. The structures are installed at an angleof
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From 1979 to 1983 the Oregon State Highway Division participated with the FHWA in a demonstration Project to evaluate the feasibility of manufacturing precast, prestressed marine piles from advanced structural materials. The materials that were evaluated included polymer concrete, polymer impregnated concrete, internally sealed concrete, and latex
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This report covers an experimental feature where a geotextile fabric was used in an attempt to retard reflective cracking over severe thermal cracks. the application evaluated here is different from previous geotextile use in Oregon. It is the first time that narrow strips of fabric have been used instead of continuous full-width fabrics. The crack
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The Pre-Construction Management System is a system to aid managers in planning and controlling schedules and manpower requirements for the Design phase of highway projects. The major objectives of this development include the following: (1) to provide projections of the month-by-month demand for design personnel needed to complete a Letting Program
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In classic timetable and train-order territory, the study focuses on several dimensions of traindispatchers' work, viewed through the other end of the telescope, i.e., from the perspective of thedispatched train crewmembers and others in the field. The monograph, comprising amicroethnographic case study, emphasizes the cognitive worktasks--includin
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In enacting the Airline Deregulation Act of 1978, Congress freed up the airlines to compete and grow, but left the essential infrastructure--the airports and air traffic control (ATC) system--in their static, bureaucratic pre-deregulation condition. The result is a growing set of problems, most notably delays, congestion, and questions about safety
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Density is one of the most important parameters in construction of asphaltmixtures. A mixture that is properly designed and compacted will contain enoughair voids to prevent rutting due to plastic flow but low enough air voids toprevent permeability of air and water. Since density of an asphalt mixturevaries throughout its life the voids must be lo
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Oregon. Department of Transportation. Materials and Research Section
1990-01-01
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The Oregon Department of Transportation has had the opportunity to use geotextile materials in two experimental feature studies. Both were unique applications and are not representative of all geotextile uses. These ODOT studies are: 1) Use of fabrics for reflective crack control in asphalt concrete overlays over PCC jointed pavements; and 2) Geote
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Increased incidence of premature rutting of heavy duty asphalt pavements hasbeen experienced in recent years. There is a general agreement among mostasphalt paving technologists that the use of large size stone in the binder andbase courses will minimize or eliminate the rutting of heavy duty-pavements.However, the wide acceptance of the Marshall a
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Source: 1990 Census of Population (STF3C), 1980 Census of Population, "General Social and Economic Characteristics, United States Summary", 1970 Census of Population, "Characteristics of the Population, United States Summary", and 1960 Census of Population, "Characteristics of the Population, United States Summary".National Transportation Library F
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The Urban Mass Transportation Administration (UMTA) Alternative Fuels initiative (AFI) and the Environmental Protection Ageny (EPA) 1991 regulations on transit bus exhaust emissions has resulted in a number of alternative fueled transit bus demonstrations. There were approximately 60 buses in revenue service using neat methanol fuel (M-100) in 1989
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This guide is meant to assist carriers in accurately completing the MANDATORY hazardous materials incident report. Examples of required information are given for each section.
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