Escherichia coli (E. coli) is often used as an indicator organism to quantify the microbial safety of natural water resources. E. coli in stormwater r...
Posted speed limits on Texas roadways have increased in recent years. Texas now has many miles of roadways posted at speeds of 75 mph and above. Barri...
Longitudinal barriers (e.g., guardrails, median barriers, and bridge rails) are currently tested and evaluated at a design impact speed of 62 mph. Pos...
Evaluating the numerous types of traffic control devices (TCDs) newly available and installed across Texas roadways is a key for the Texas Department ...
This study documents a baseline of casual and contributing factors to flight deck task management deficiencies and vulnerabilities in flightpath monit...
The objective of this project was to develop a hydraulically efficient portable concrete barrier (PCB) that complies with the American Association of ...
The research team derived local calibration factors for models for urban freeway segments with 4–10 lanes and assessed the applicability of the 10-l...
A retrofit design was developed and evaluated to improve safety for motorcyclists impacting guard fence systems. Finite element computer simulations w...
Motorcyclists are among the most vulnerable users of the roadway system. The appropriate design of roadside safety systems plays an important role in ...
Inspecting hydraulic structures, including capturing deformations in the deck and detecting defects in the piers, presents numerous challenges. These ...
As transportation agencies largely neglect joint sealant maintenance in concrete pavements, water infiltration into the deteriorated joint and subgrad...
This technical report documents research conducted by Embry-Riddle Aeronautical University’s Eagle Flight Research Center team in Phase 2 of the Int...
Infrastructure assets, such as roadways, bridges, tunnels, railways, and intermodal terminals, are components of a larger transportation system servin...
This report presents the development and application of a scheme, in the form of a computer program, for prioritizing and scheduling a set of rigid pa...
United States. Department of Transportation. National Highway Traffic Safety Administration. National Center for Statistics and Analysis
2024-07-01
Abstract:
In 2022 there were 25,420 passenger vehicle occupants who died in motor vehicle traffic crashes, a 4-percent decrease from 26,465 in 2021. An estimate...
United States. Department of Transportation. Office of Aviation Consumer Protection
2023-06-01 | Air Travel Consumer Report [Series]
Abstract:
Consumer submission data is a product of the Department of Transportation's Office of Aviation Consumer Protection (OACP) and is designed to assist co...
This note reports a preliminary statistical study of rolling resistance data from ConRail’s Elkhart, Indiana yard October 25 and 26, 1978 by Messrs....
The conventional retarder speed control system is a misnomer. In particular, there are many system configurations one can put together with “convent...
In this report, several of the factors that affect Dynaflect deflections in rigid pavements are analyzed. Findings from this study are incorporated in...
Polymer concrete (PC) has been widely used for repairing concrete bridges and pavements. The primary advantages are its rapid curing and high strength...
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