With the growing trend in use of 3D laser scanning technology for data collection, it is important to study the various potential applications of this revolutionary technology. One such application is the measurement of ...
At signalized intersections, pedestrians are considered to be amongst the most vulnerable. When in the crosswalk at intersections without protected left-turn phasing, pedestrians are particularly at risk from left-turnin ...
Performance-based design has gained interest in recent years among
structural designers and researchers. Performance-based design includes selection
of appropriate building sites, structural systems and configurations, ...
The Asphalt Pavement Analyzer (APA) device was used to characterize the impact of
various mix factors on the development of permanent deformation in dense-graded
mixes given a standard compactive effort. Factors includ ...
The combination of increased training tempo due to military base closures and the
reduction in military budgets have placed a severe burden on the infrastructure at many
military installations and emphasized the need f ...
The objective of this study was to develop and validate practical modeling
methods for investigating load paths and system behavior in a realistic, light-frame wood
structure. The modeling methods were validated agains ...
Land application of industrial wastewater with high levels of nitrogen requires
adequate management practices to prevent groundwater pollution by nitrates. In this study
a predictive computerized model was developed fo ...
Low temperature cracking is attributed to tensile stresses induced in an
asphalt concrete pavement that develop when the pavement is subjected to a cold
temperature. Cracking results in poor ride quality and a reductio ...
Prediction equations were developed for estimating the flow
regime at ungaged stream locations in the Oregon coastal range.
Principal components analysis was used to screen the initial data set
of physiographic and me ...
Recent concern over the potential environmental impact of highway construction
and repair materials on surface and ground waters has lead to extensive laboratory
screening and subsequent testing of a set of new materia ...
Several potential sorbent materials containing iron oxides were prepared and evaluated for potential to remove divalent metals from waste waters. These included a ferrihydrite-coated sand, maghemite incorporated in Dowex ...
Landslides are an insidious natural hazard, which can result in significant damage to public infrastructure. Limited monitoring tools are available, particularly tools suitable for use in forested environments. These t ...
Persistence of Non aqueous phase liquids (NAPLs) in the subsurface at residual
saturations eventually contributes to undesirable groundwater contamination. Proper
characterization of subsurface NAPL, its location, comp ...
This study investigated the use of radon-222 as an in situ partitioning tracer for
quantifying nonaqueous phase liquid (NAPL) saturations in the subsurface.
Laboratory physical aquifer models (PAMs), field experiments, ...
Radon-222 gas has unique properties allowing it to be used as an indicator for the
presence of organic phase liquids in the saturated zone. It naturally occurs in soils. It is
radioactive, making quantitative detection ...
The reductive dechlorination of chlorobiphenyls in sediment by titanium(III) citrate-reduced vitamin Bus was studied in batch reactors. Long term ampoule studies demonstrated reductive dechlorination of sediment-sorbed 2 ...
Assessment of an existing bridge is needed when the structure exhibits signs of distress.
Assessment practices require refinement in the calculation of loading and resistance while
maintaining an acceptable level of ri ...