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.
Virginia Department of Highways and Transportation employees trained in the use of SCUBA inspect certain of the Department's bridges and provide a degree of quality control for inspections done under contract. Safety standards to be followed in diving operations by these employees have been established in accordance with OSHA guidelines and are sta
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McGeehan, Daniel D and Samuel, Lynn (1984). Criteria for determining safe water conditions for underwater operations..
McGeehan, Daniel D and Samuel, Lynn "Criteria for determining safe water conditions for underwater operations." (1984)
McGeehan, Daniel D and Samuel, Lynn "Criteria for determining safe water conditions for underwater operations." , 1984
The purpose of this project was to develop a random sampling plan for use in selecting segments of the secondary highway system for evaluation under the Department's PMS. The plan developed is described here. It is a simple, workable, random sampling plan that will select a 5% cross section of secondary roads on a per county basis and also yield co
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Long, R. R (1984). Final report : sampling plan for pavemrnt condition ratings of secondary roads..
Long, R. R "Final report : sampling plan for pavemrnt condition ratings of secondary roads." (1984)
Long, R. R "Final report : sampling plan for pavemrnt condition ratings of secondary roads." , 1984
The objectives of this study were to identify present system costs and deficiencies, determine the economic feasibility of alternative system configurations, and make recommendations for improvements. The study focused on the procedures used to process data extracted from the state FR-300P police accident report form. The flow and usage of these da
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Kelsh, William E et al. (1984). Cost analysis of Virginia system for processing accident data..
Kelsh, William E and Heitzler, Carter P and Rauth, Susan G "Cost analysis of Virginia system for processing accident data." (1984)
Kelsh, William E et al. "Cost analysis of Virginia system for processing accident data." , 1984
Sled tests were performed using a driver-only air bag system in conjunction with various belting systems to determine injury criteria using 5th, 50th, and 95th percentile dummies. This report is a compilation and description of those tests.
Esser, Robert C. (1984). Airbag Demonstration Program: Volume II [1984 January].
Esser, Robert C. "Airbag Demonstration Program: Volume II [1984 January]" (1984)
Esser, Robert C. "Airbag Demonstration Program: Volume II [1984 January]" , 1984
The objective of this research was to investigate innovative routing and scheduling concepts to determine how transit systems in Virginia may improve ridership and reduce operating costs. Information on innovative routing and scheduling concepts was obtained through a literature survey, and transit systems in Virginia were surveyed to determine the
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Cottrell, Benjamin H (1984). Innovative routing and scheduling concepts for transit systems..
Cottrell, Benjamin H "Innovative routing and scheduling concepts for transit systems." (1984)
Cottrell, Benjamin H "Innovative routing and scheduling concepts for transit systems." , 1984
The dense, high speed traffic on some of Virginia's highways necessitates taking the extreme measure of protecting the Department's maintenance personnel by placing a blocking truck in a lane that has been closed for repairs. To protect anyone who might crash into the blocking truck, an impact attenuator (TMA) can be attached to the back of the tru
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Noble, David F (1984). Truck mounted impact attenuators used in Virginia..
Noble, David F "Truck mounted impact attenuators used in Virginia." (1984)
Noble, David F "Truck mounted impact attenuators used in Virginia." , 1984
A procedure is developed to estimate the remaining service life of flexible pavements based upon predicted ride and distress conditions. These conditions are forecast using equations that involve measurable values of material properties, climatic conditions, and design factors. In particular, life predictive models are developed for the Texas flexi
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Garcia-Diaz, Alberto and Allison, Jack T. (1984). Estimating the Remaining Service Life of Flexible Pavements.
Garcia-Diaz, Alberto and Allison, Jack T. "Estimating the Remaining Service Life of Flexible Pavements" (1984)
Garcia-Diaz, Alberto and Allison, Jack T. "Estimating the Remaining Service Life of Flexible Pavements" , 1984
During nine days in June 1977 and nine in June 1983, four major metropolitan areas of Virginia were surveyed to determine whether safety restraints were being used by urban travelers. Observers stationed at selected signalized intersections displayed to stopped motorists a clipboard bearing the question, Are you wearing seat belts? The observers th
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Stoke, Charles B (1984). Child safety seat and safety belt use among urban travelers..
Stoke, Charles B "Child safety seat and safety belt use among urban travelers." (1984)
Stoke, Charles B "Child safety seat and safety belt use among urban travelers." , 1984
Laboratory and field investigations were conducted to compare the compressive strengths obtained for 4 x 8 in. (100 x 200 mm) cylinders with those for standard 6 x 12 in. (150 x 300 mm) cylinders, both made with aggregate having a nominal maximum size of 1 in. (25 mm). In the lab, in addition to the effect of specimen size on strength, other factor
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Ozyildirim, H. Celik (1984). 4 x 8 inch concrete cylinders versus 6 x 12 cylinders..
Ozyildirim, H. Celik "4 x 8 inch concrete cylinders versus 6 x 12 cylinders." (1984)
Ozyildirim, H. Celik "4 x 8 inch concrete cylinders versus 6 x 12 cylinders." , 1984
Skewed rail-highway grade crossings can be a safety problem because of the restrictions which the angle of crossing may place upon a motorist's ability to detect an oncoming train and because of the potential roadway hazard which the use of flangeways in crossing surfaces poses for cyclists. This study has found that at skewed grade crossings in Vi
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Paltell, Eric (1984). An investigation of safety problems at skewed rail-highway grade crossings..
Paltell, Eric "An investigation of safety problems at skewed rail-highway grade crossings." (1984)
Paltell, Eric "An investigation of safety problems at skewed rail-highway grade crossings." , 1984
The temporal distribution of Virginia rainstorms was examined by statistically analyzing approximately 1,400 storm events recorded throughout the state. Rainfall time distribution curves were constructed and were compared with several nationally recognized curves such as the Huff quartile curves and the Soil Conservation Service Type II curves. Sig
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Yu, Shaw L et al. (1984). Temporal distribution of rainfall in Virginia : final report..
Yu, Shaw L and Hamilton, Pixie A and Kent, Charles E "Temporal distribution of rainfall in Virginia : final report." (1984)
Yu, Shaw L et al. "Temporal distribution of rainfall in Virginia : final report." , 1984
The study reported here addresses some of the earlier phases in the development of a pavement management system for the state of Virginia. Among the issues discussed are the development of an adequate data base and the implementation of a condition rating system. While the system envisioned is applicable to all Virginia pavements, such application
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McGhee, Kenneth H (1984). Development of a pavement management system for Virginia : final report on phase I : application and verification of a pilot pavement condition inventory for Virginia interstate flexible pavements..
McGhee, Kenneth H "Development of a pavement management system for Virginia : final report on phase I : application and verification of a pilot pavement condition inventory for Virginia interstate flexible pavements." (1984)
McGhee, Kenneth H "Development of a pavement management system for Virginia : final report on phase I : application and verification of a pilot pavement condition inventory for Virginia interstate flexible pavements." , 1984
A standard Texas type T5 traffic rail was modified to increase its height and strength to contain and redirect an 80,000 1 b (36,300 kg) tank-type tractor trailer at 50 mph (80.5 km/h), 150 impacts. The concrete parapet was increased to 48 in. (122 cm) high, and a concrete beam was mounted on concrete posts on top of the parapet to achieve a total
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Hirsch, T. J. and Fairbanks, William L. (1984). Bridge Rail to Contain and Redirect 80,000 LB Tank Trucks.
Hirsch, T. J. and Fairbanks, William L. "Bridge Rail to Contain and Redirect 80,000 LB Tank Trucks" (1984)
Hirsch, T. J. and Fairbanks, William L. "Bridge Rail to Contain and Redirect 80,000 LB Tank Trucks" , 1984
This study investigated areas where microcomputers can aid in the effectiveness of transportation engineering at state and local levels. A survey of the microcomputer needs of transportation professionals in state and local agencies in Virginia was conducted. Overall, traffic engineers, public transit operators, and transportation planners indicate
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Demetsky, Michael J (1984). Final report : evaluation of microcomputer applications in transportation engineering..
Demetsky, Michael J "Final report : evaluation of microcomputer applications in transportation engineering." (1984)
Demetsky, Michael J "Final report : evaluation of microcomputer applications in transportation engineering." , 1984
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