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.
John A. Volpe National Transportation Systems Center (U.S.)
1993-03-01
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This report is the second in a series produced for the Federal Transit Administration (FTA) and the Federal Highway Administration (FHWA) by the Volpe Center. The purpose of the review was to allow the FHWA and the FTA determine how successfully the Urban Transportation Planning Process (UTPP) addresses broadly defined regional transportation needs
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A study group from the U.S. consisting of contractors, National Asphalt Pavement Association, Asphalt Institute, Federal Highway Administration (FHWA), and State Highway agencies visited Europe in the fall of 1990 to observe the quality of roads in Europe and to discuss construction procedures as well as contracting procedures. One of the items wit
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This is the 3rd of 4 volumes concerned with developing safety guidelines and specifications for high-speed guided ground transportation (HSGGT) collision avoidance and accident survivability. The overall approach taken in this study is to first formulate collision scenarios to which an HSGGT system may be exposed. Then existing U.S. and foreign rul
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This report looks at what research has been done to evaluate the public's risk by descent of a payload from its orbital or suborbital flight. Compared is the difference in risk between a parachute descent and that in free fall. The research indicates a large amount of qualitative information that allows one to conclude it is safer for an object to
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The transition from the roadway to the deck of a rigidly supported bridge is of concern to engineers and the travelling public. It is a common occurrence to feel a discontinuity between the roadway and bridge structure. Bridge engineers have tried to overcome this discontinuity by the use of transition slabs. However, embankment materials under the
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The Louisiana Department of Transportation and Development (LDOTD) contracted with the Texas Transportation Institute (TTI) to evaluate the impact characteristics of Louisiana's multi-directional, 8.9 cm (3-1/2 in) diameter steel post, small sigh support when impacted by an 820 kg (1,808 lb) vehicle at 35 km (22 mi/h) and 100 km/h (62 mi/h). The fu
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A method to analyze the roughness of grade breaks at highway intersections is proposed. Although there are a variety of instruments to physically measure the road roughness, there are no known methodologies to analyze profile roughness during the design stage. The proposed analytical procedure is based on a series of simulation experiments performe
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This document presents a brief history of the Interstate Commerce Comission and its role in regulating and deregulating the transportation industry. 20 p.
United States. Department of Transportation. National Highway Traffic Safety Administration
1993-03-01
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This 1993 research serves as a follow-up to the National Highway Traffic Safety Administration plan in 1988 that indicates that older drivers are overrepresented in crashes at intersections and during certain hours of the day, that they are underrepresented in crashes involving alcohol or speed, and that many older drivers tend to self- adjust thei
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The original "California Smart Traveler" report describes how telephone-based information systems can be used to develop new types of public transportation services (e.g. single-trip carpools) and to integrate these new services with conventional transit, paratransit and ridesharing modes. This report provides estimates of the costs of conducting o
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This document provides a comprehensive, state-of-the-art review of the operation and control strategies of light rail transit systems. It is intended to serve as a basis for further research in the goals of developing an analytical tool for evaluating the operations of light rail at-grade within an urban signal system. The report identifies the var
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This research report is the fifth year continuation of a six year research effort focused on quantifying urban mobility. This study contains the facility information for 50 urban areas throughout the country. The database used for this research contains vehicle-miles of travel, urban area information, and facility mileage data from 1982 to 1990. Va
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The objectives of the research were to identify and quantify the factors that affect the life of South Dakota's bridges, and to evaluate the rehabilitation procedures being used by SDDOT. Furthermore, this work was intended to aid in the implementation of a Bridge Management System (BMS). An extensive literature review was performed that included e
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Boston Metropolitan Planning Organization. Central Transportation Planning Staff
1993-02-22
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This memorandum describes the development of interim trip production cross-classification models for four home-based trip purposes: home-based work (HBW), home-based shopping and personal business (HBPB), home-based social and recreational (HBSR), and home-based school (HBSc). The models are used to estimate home-based trip productions for the 164-
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This assessment addressed the usability and suitability of TMA features in the context of traffic management operations at the Denver Center traffic management unit (TMU) and TRACON.
This advisory circular (AC) provides an acceptable means, but not the only means, to show compliance with the quality assurance requirements of Federal Aviation Regulations (FAR) Part 21, Certification Procedures for Products and Parts, as applicable to the production of software used in type certificated aircraft or related products (airborne soft
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This document presents a detailed Scope of Work to guide implementation of the Eastern Washington Intermodal Transportation Study. Included is a description of project management and staff responsibilities, a detailed work plan and timetable for implementation.
The purpose of this paper is to provide a plan for research and service that serves the transportation needs of North Dakota's rural, resource-based economy. A description of the unique characteristics of North Dakota's transportation environment are discussed and a broad agenda for research projects and plan for services is presented. The future v
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The Index of International Publications in Aerospace Medicine is a comprehensive listing of international publications in clinical aerospace medicine, operational aerospace medicine, aerospace physiology, environmental medicine/physiology, diving medicine/physiology, aerospace human factors, as well as other important topics directly- or indirectly
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This report presents the findings from the 1991 Southern California Origin-Destination Survey. The survey was coordinated and managed by the Southern California Association of Governments (SCAG) for the following five agencies representing their respective counties: Los Angeles County Transportation Commission; Orange County Environmental Managemen
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