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.
An investigation of the delamination of thin-bonded concrete overlays was conducted on 6 overpasses on IH-10 in El Paso, Texas. These 200-ft overpasses consist of 3 spans of Precast Concrete Box Beams with a wood float finish. The 30-inch diameter columns rest on 36-in. diameter drilled shafts. The overpasses were constructed in two phases with the
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This study reports the findings of a small Federal Transit Administration funded study designed to identify and briefly evaluate both historical and modern reverse commute experiments and projects. A series of Federal and State programs funded reverse commute experiments from 1966-1971 designed to get people from the ghettos to unfilled suburban jo
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Persons giving thoughtful consideration or deliberating about issues which will affect the future of South Dakota will find mobility for South Dakota citizens an issue worthy of concern as the state approaches the 21st Century. Mobility for South Dakota citizens is a concern because adequate mobility is a precursor to a healthy economy. The relatio
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This research study of pavement smoothness measurement was conducted in order to develop and implement an improved highway smoothness construction specification on asphalt concrete pavements. Achieving a higher level of smoothness on highways during construction results in savings to the taxpayer due to reduced wear and tear on vehicles, and longer
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Although equity theory has served as a theoretical framework applying to most individuals in most situations, empirical research suggests that gender may affect the utility of equity theory in explaining organizational behaviors. Studies have indicated that men are more likely than women to distribute outcomes to individuals in direct proportion to
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A panel of the American Medical Association convened by the Federal Aviation Administration recommended that a computerized test of cognitive function be developed that would detect significant cognitive impairments that might otherwise go unrecognized during a routine physical examination. In response to this need, a computerized test battery, bas
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Vancouver and Schmitt (1991) operationalized person-organization fit in terms of goal congruence and reported that goal congruence scores were positively related to favorable job attitudes. The purpose of the present study was to replicate and extend their work. Specifically, we sought to: (a) replicate their findings of goal congruence scores as p
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This study examined the dimensionality and construct validity of Golembiewski, Munzenrider, and Stevenson (1986) revision of the Maslach and Jackson (1981) Maslach Burnout Inventory (MBI). Results of confirmatory factor analyses conducted on data collected from 357 FAA employees in a technical satety-related occupation provided support for a 3-fact
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This study examined the dimensionality and construct validity of Kacmar and Ferris (1991) Perceptions of Organizational Politics Scale (POPS), which is comprised of 3 subscales: "General Political Behavior," "Going Along to Get Ahead," and "Pay and Promotion." Results of analyses conducted on data collected from 1,297 civilian government employees
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The primary objectives of the Phoenix urban truck travel model project were to conduct a travel survey of commercial vehicles operating within the Phoenix metropolitan area and to use the data collected in this survey to develop commerial vehicle trip generation, distribution, and traffic assignment models. The models are designed to be incorporate
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Congress has dramatically changed the rules on highway finance in enacting the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA). Reversing 70 years of federal opposition to toll roads, the new law encourages state governments to make use of private capital and direct user payments to increase total investment in our highway system.
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A study was conducted to examine the inflation characteristics of several production driver's side air bag systems relative to factors which may be important to the likelihood of injuries occurring as side effects of the inflation process. The study was limited to deployment of the air bag systems in a static, non-crash environment. Two phases of t
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This report is an introduction to the type of traffic signal control system that may be used in urban areas where "real-time" control of traffic adaptive, system is justified. The system described in the report is a step beyond current real time systems such as SCOOT and SCAT. The traffic control strategy described is known as ARTC or Area-wide Rea
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Improvements of freeway-freeway interchanges in Texas have been initiated through re-design and reconstruction. However, little documentation or definitive guidelines exist to assist in these efforts. Alternative designs need to be considered and evaluated for freeway-freeway interchanges. The operational impacts of alternative designs which will b
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This research report documents guidelines for the design of urban arterial interchanges in densely developed areas. It addresses the geometric issues, operational issues, benefits, and costs of three interchange configurations. The configurations investigated are the Tight Urban Diamond Interchange (TUDI), the Single Point Urban Interchange (SPUI),
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This manual is designed to provide technical documentation for the trip generation program TRIPCAL5. It was originally published in February 1992 and is published here in revised form to include documentation on the default models; this documentation is presented as a technical appendix. In an effort to update the Texas Department of Transportation
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Urban arterial work zones have several unique characteristics which have not been addressed in previous work zone research. This research study was established to identify these characteristics and to develop guidelines for traffic control in urban arterial work zones. Study activities including a literature review, analysis of accident, traffic vo
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Urban arterial work zones have several unique characteristics which have not been addressed in previous work zone research. This research study was established to identify these characteristics and to develop guidelines for traffic control in urban arterial work zones. Study activities -- including a literature review, analysis of accident, traffic
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This report is a compilation of the scoping suggestions received from a mail solicitation undertaken to establish parameters for a draft environmental impact statement (EIS).
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