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Now showing items 41-50 of 287
Estimation of volume delay functions for arterials and freeways in the western region of Puerto Rico
(2011-07)
Volume Delay Functions (VDF) are formulas developed to describe the functional relationship between travel time and traffic flow in a travel demand model considering the available capacity of the facility. VDF’s are the ...
Analysis of open canopy structures with parapets under wind
(2009)
A literature review shows that there is a lack of information on the wind load pressures acting on canopy structures with a parapet on the roof perimeter. On the other hand, a large number of those structures suffered ...
GPS-enabled mobile phones as sensors in the determination of the components of individual trip chains withouth user input
(2012)
Dynamic Traffic Assignment (DTA) is used to maximize the network’s capacity utilization. Research for DTA is active, but the data to apply it in real world situations is still under development. The solution proposed herein ...
Metodología para realizar auditorias en seguridad vial en Puerto Rico
(2007)
Esta tesis presenta una metodología general para la realización y desarrollo de Auditorias en Seguridad Vial (RSA y RSAR por sus siglas en inglés) y su aplicación en un segmento de carretera representativa de la Red Vial ...
Enhancement of TCE volatilization and vapor extraction from variably-saturated clay using salt and alcohol solutions
(2015)
One of the most common dense non-aqueous phase liquids (DNAPLs) found in polluted underground systems in the U.S. is trichloroethylene (TCE). Most of the remediation technologies for chlorinated solvents like TCE have been ...
Expected flood damage to buildings in riverine and coastal zones
(2007)
The methodologies used to estimate flood damage to buildings are typically based on aftermath surveys and statistical analyses of insurance claims data that do not consider the direct effects of floodwater hydrodynamics. ...
Regionalized flood frequency analysis for basins in Puerto Rico
(2012)
The main goal of this research is to provide a flood regionalization study for Puerto Rico based on recent advances in watershed classification and parameter estimation techniques. The regional flood frequency was achieved ...
A variable damping semiactive device for control of the seismic response of buildings
(2005)
This dissertation proposes a new semiactive device, composed of two fixedorifice viscous fluid dampers installed in the form of V whose top ends are attached to the upper floor and their lower ends to a point that can move ...
Seismic performance and fragility curves for reinforced concrete frame and shear wall residential buildings in Puerto Rico
(2007)
Puerto Rico is situated in an earthquake prone region. Most of residential buildings in Puerto Rico are reinforced concrete structures. Because of the imminent risk of being affected by a strong earthquake, it is important ...
On improving the performance of wood-zinc roof systems
(2006)
From hurricane Hugo to hurricane Georges, the majority of storm related losses in
Puerto Rico were attributed to wood-zinc houses and auxiliary structures. Efforts to
improve the performance of such systems is therefore ...