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.
Research Report 140-1, "Documentation of Input for Single Vehicle Accident Computer Program," Young, R. D., et al., was written in 1969 to document the input requirements of the Texas Transportation Institute's version (V-3 modified slightly) of the Highway-Vehicle-Object-Simulation-Model. Since that time, several additional changes have been incor
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This report presents technology developed in cooperative research to facilitate the establishment of vegetation for soil stability and to control unwanted vegetation in pavement and on the roadside. Work on erosion control dealt with critical slopes where excessive acidity and plastic soil materials limited vegetation establishment. Lime can be use
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A study of the wet weather characteristics of five different pavements and ten different tires is presented. The pavements studied were a portland cement concrete, a seal coat surface treatment, a hot mix asphalt, a jennite surface and a longitudinally grooved portland cement concrete. The tires studied were several bias ply tires with different tr
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This report represents the final report (Volume 2 of 3) of Research Study 2-10-74-15, entitled, "Cost-Effectiveness Priority Program for Roadside Safety improvements on Non-Controlled Access Roadways," a follow-on to Research Study 1-8-72-11, "Cost-Effectiveness Priority Program for Roadside Safety Improvements on Texas Freeways." In the follow-on
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Study Number 2-10-71-167, entitled "Urban Travel Forecasting," was a 13-year planning study directed toward providing continuing technical support to the Texas Highway Department in the conduct of urban transportation studies throughout the State. Under this study, assistance was provided in the analysis and forecasting techniques relative to urban
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United States. Department of Transportation. Urban Mass Transit Administration
1974-07-10
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Press release for the Urban Mass Transportation Administration (now Federal Transit Administration). This press release announces the release of procedures through which private, non-profit corporations and associations may receive Federal funds for providing transportation services to the elderly and handicapped.
Close cooperation among Texas Highway Department district maintenance operational personnel, central office representatives and the Texas Transportation Institute study team together with a review of the literature provided the necessary information to formulate a list of maintenance activities and to develop maintenance methods and cost codes. The
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During the early months of 1971 the Oregon State Highway Division requested and received FHWA approval to install flexible guideposts in locations where sight post losses from collisions would be expected to be high. The request was to install the flexible posts as an experimental feature under the provisions of PPM 20-6.3 as a Category 2 Project.
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This study concerned with attempting to develop a laboratory procedure by which products can be evaluated, as quickly as possible after they appear on the market, in order to screen them so that the best ones can be further tested in the field.Primarily there were two phases to the study, a field phase where the products available were installed on
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The primary purpose of this research effort was to assess the presently specified smoothness criteria for new construction of asphaltic concrete surfaces using various rolling straightedges and roadmeters. This assessment was to be based on the correlation between the various systems of smoothness (or roughness) measuring devices and the precision
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The primary objective of this study was to evaluate rubber additive asphalt and its aggregate mixtures in the laboratory with respect to their physical characteristics.Results obtained on the physical properties of the rubberized asphalt binder were compared to those of the original, untreated asphalt. The data indicate that an acceptable binder ca
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The Louisiana highway network extends southward to the Gulf Coast where it serves a populace which is rapidly expanding as oil companies increase their activities in the area. The swamplands and marshlands which comprise much of south Louisiana represent construction problems which are perhaps best appreciated by the highway engineer. The root of t
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This report describes an interrelated study of the oxidation products formed in asphalt during the processing of road mixes and aging in the road and the interactions of asphalt and its oxidation products with aggregate to form the asphalt-aggregate adhesive bond. A method for the qualitative and quantitative determination of ketones, carboxylic ac
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This study analyzed the experiences of residents relocated from their homes as a result of highway location in several areas in Texas. Interviews were conducted with 165 households (58 percent homeowners and 42 percent renters) from the 1,130 households relocated in the State between January 1971 and January 1973 under the pro visions of the Unifor
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A resting 'normal' ECG can coexist with known angina pectoris, positive angiocardiography and previous myocardial infarction. In contemporary exercise ECG tests, a false positive/false negative total error of 10% is not unusual. Research aimed at improved screening detection of coronary heart disease (CHD) evaluated amplitude/frequency analysis of
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The study quantifies some medical and general descriptive characteristics of airmen medically disqualified during calendar year 1971. Such information has been of continual interest to the Office of Aviation Medicine and the aviation community for purposes ranging from program monitoring to disability risk determination. Specifically, the study pre
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Three noise level measurement systems have been investigated and made operational. They are:1. Graphic Level Recording Method2. Periodic Sampling Method3. Environmental Noise Classifier MethodThe relative accuracy of the three systems were compared by simultaneous field measurements of traffic noise. Other factors such as equipment portability, dat
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The study was undertaken to determine the effects of various reduced fare programs on transit ridership. A listing of all reduced fare programs in North America is provided. The concept of fare elasticity was defined and determined for the various programs. Empirical evidence was obtained and analyzed from senior citizen programs, reduced base fare
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