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.
The essence of this research is the search for more economical grouts not directly dependent on petroleum. The study has required an extensive investigation of 75 years of knowledge on chemical grouts in order to clear out the present diaspora of products. From this a general classification of chemical grouts has been proposed based on the nature o
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The essence of this research is the search for more economical grouts not directly dependent on petroleum. The study has required an extensive investigation of 75 years of knowledge on chemical grouts in order to clear out the present diaspora of products. From this, a general classification of chemical grouts has been proposed, based on the nature
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The purposes of this report are: (1) to identify the direct, as well as latent, demand for public and mass transportation services, and (2) to assess the factors which are critical to developing expanded transit usage. Individual and behavioral characteristics explaining transit demand are assayed, as well as transit system and population character
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Marketing in the area of public and mass transportation involves a consumer orientation whereby systems attempt to best serve the needs of potential transit markets. By structuring service developments and promotional activities to satisfy the service requirements of targeted population segments, systems maximize the effectiveness of their efforts
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The Oregon State Highway Division, in cooperation with the Federal Highway Administration, participated in a demonstration project on the evaluation of rubber-asphalt chip seals. The trial projects were placed in Maintenance District 11, in the vicinity of Klamath Falls. The object of project was to give this type seal coat a working test. The proc
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In May, 1968, the Department's Research and Development Section initiated a project to evaluate joint sealants being marketed for use on roads and bridges. In the study, representatives of 31 companies installed 40 products primarily on one road and one bridge for evaluation. Thus, at first the project was primarily materials oriented; however, dur
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A broad spectrum of materials which may have potential for improving the characteristics of pavements with regard to reducing future maintenance were reviewed with those materials or materials systems possessing the most advantages being considered as candidates for a zero maintenance paving system. These included Gussasphalt, asbestos asphalts, su
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A broad spectrum of materials which may have potential for improving the characteristics of pavements with regard to reducing future maintenance were reviewed with those materials or materials systems possessing the most advantages being considered as candidates for a zero maintenance paving system. These included Gussasphalt, asbestos asphalts, su
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Many species of wildlife occur along roads. Most rodents spend their entire lives within the rights-of-way (ROWs); larger species are transients which feed within ROWs. Mowing affects abundance of rodents. Species preferring denser cover were more plentiful in un-mowed ROWs than in mowed-ROWs. Species preferring sparse cover were more abundant in m
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This monograph focuses upon the transportation aspects of the recently proposed National Energy Plan. It contains a point- by - point analysis of elements, specifically mentioned in the National Energy Plan, that relate directly to transportation. When appropriate, the analyses have generated some forecasts of the expected effects upon Texas and/or
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Since Texas and many other states have literally thousands of turned down end guardrails installed on their highways, Texas Transportation Institute and Texas highway engineers have been seeking a relatively simple method of modifying the turned down end treatment which would eliminate or greatly minimize the probability of a vehicle ramping and ro
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This report represents a continuation of analyses concerned with the patterns and methods of distributing grain from North Dakota. This series began with the analysis of 1956-57 data and was published in Agricultural Economics Report 14, Department of Agricultural Economics, North Dakota State University, Subsequent years' data were analyzed in Agr
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The major objectives of this study were three-fold and can be listed as follows in their order of importance:(1) To seek data relative to the changes that occur with time in the physical characteristics of penetration and viscosity graded-asphalt cements.(2) To determine the influence of the above characteristics on the durability (performance) of
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This study involved a census of 4,491 general aviation accident-involved airmen records for the year 1974 to obtain relevant occupation, age, exposure, and other epidemiologic profile information of a descriptive nature. Population comparison data for occupation, age, and exposure were obtained from a sample of 9,414 currently certified airmen medi
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Reported here is the Test and Evaluation Plan of a study to investigate the effectiveness of four techniques for reducing wheel/ rail noise in rail rapid transit systems (resilient wheels, damped wheels, wheel truing, and rail grinding) by implementing a testing program on the SEPTA Market-Frankford Line in Philadelphia. Presented are the methods a
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Annual report of the Maritime Administration covering fiscal year 1976 and the transition quarter. The report describes in detail the Agency's efforts to promote and maintain a strong American merchant marine.
The use of sulfur as a means of upgrading poorly graded mineral aggregates for use in asphaltic concrete mixes has been under study by Shell Canada under the trade name of Thermopave for approximately fifteen years. Laboratory work has been extensive and numerous field trials have been completed in Canada. The Texas Transportation Institute under t
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Comprises pages 1-212 of a transcript of the public hearing on Transbus, held March 15, 1977, in Washington, D. C., Mortimer L. Downey III, Deputy Undersecretary, U. S. Dept. of Transportation, presiding. The objective of the hearings is to receive input from the transit community and the bus manufacturing community on the development of "Transbus"
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When dogs are shipped by air transport, they can encounter environmental temperatures as high as 130.0 F during the summer months. Heat- induced hyperthermia can be a major problem in dogs.To assess some aspects of the heat stress problem, 20 dogs were exposed to an ambient temperature of 130.0 F for 30 minutes--10 dogs at 15% relative humidity and
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