Now showing items 1-10 of 574
Aligning Public-Private Partnership Contracts with Public Objectives for Transportation Infrastructure
(Virginia Tech, 2010-08-18)
With its central role in the development of public-private partnership (PPP) contracts, procurement structure has a significant influence on the economic and policy success of privately-financed toll roads throughout their ...
Insights Into Non-Uniform Copper and Brass Corrosion in Potable Water Systems
(Virginia Tech, 2010-11-01)
Non-uniform corrosion of copper and brass in potable water systems poses both economic and environmental problems associated with premature plumbing failures and release of metals. With respect to copper pitting corrosion, ...
Non-Destructive Bridge Deck Condition Assessment with a Probability-Based Deterioration Threshold
(Virginia Tech, 2014-07-03)
Deterioration of bridge decks is an ongoing problem faced by transportation agencies across the country. In past decades, Non-Destructive Evaluation (NDE) techniques, capable of detecting various deteriorations types, e.g., ...
Sustainability of Residential Hot Water Infrastructure: Public Health, Environmental Impacts, and Consumer Drivers
(Virginia Tech, 2012-03-23)
Residential water heating is linked to the primary source of waterborne disease outbreaks in the United States, and accounts for greater energy demand than the combined water/wastewater utility sector. To date, there has ...
Service Life Modeling of Virginia Bridge Decks
(Virginia Tech, 2007-03-20)
A model to determine the time to the End of Functional Service Life (EFSL) for concrete bridge decks in Virginia was developed. The service life of Virginia bridge decks is controlled by chloride-induced corrosion of the ...
Traffic-Based Framework for Measuring the Resilience of Ground Transportation Systems under Normal and Extreme Conditions
(Virginia Tech, 2017-04-12)
Ground transportation systems are essential for the mobility of people, goods and services. Thus, making sure these systems are resilient to the impact of natural and man-made disasters has become a top priority for engineers ...
Corrosion Protection Service Life of Epoxy Coated Reinforcing Steel in Virginia Bridge Decks
(Virginia Tech, 2002-05-03)
The corrosion protection service life extension provided by epoxy-coated reinforcement (ECR) was determined by comparing ECR and bare bar from 10 bridge decks built between 1981 and 1995. The objective was to determine ...
Applications of Connected Vehicle Technology to Address Issues of School Bus and School Bus Stop Safety
(Virginia Tech, 2016-03-01)
An analysis of crash data shows that the number of fatal school bus related crashes has remained nearly constant over the past ten years, despite an increase in available safety-improving technology. One of the main concerns ...
Optimal traffic control for a freeway corridor under incident conditions
(Virginia Tech, 1996)
Formulation and Implementation of a Constitutive Model for Soft Rock
(Virginia Tech, 2004-09-13)
Petroleum reservoirs located in the Norwegian sector of the North Sea have undergone unexpected subsidence of great magnitude (> 10 m) during more than 30 years of petroleum recovery operations. Historical laboratory ...