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Forecasting Model for High-Speed Rail in the United States
(Virginia Tech, 2012-10-02)
A tool to model both current rail and future high-speed rail (HSR) corridors has been presented in this work. The model is designed as an addition to the existing TSAM (Transportation System Analysis Model) capabilities ...
Development of Membrane, Plate and Flat Shell Elements in Java
(Virginia Tech, 2004-05-03)
The development of triangular and quadrilateral membrane, plate and shell elements in Java using the object oriented programming technique is presented. The membrane elements developed are the constant strain triangle (CST) ...
Evaluation Update of Red Light Camera Program in Fairfax County, Virginia
(Virginia Tech, 2004-04-15)
The Red Light Camera program in Fairfax County has been in operation for more than 2 years. As of 2003, there are 13 cameras in operation. The camera takes 2 pictures of a vehicle while it illegally entered the intersection ...
Java Applets for Analysis of Trusses, Beams and Frames
(Virginia Tech, 1998-07-27)
Java applets are developed to assist in the learning of basic structural analysis concepts. In order for these programs to be easily available over the Internet, they are written in the object-oriented Java programming ...
Long-term In-service Evaluation of Two Bridges Designed with Fiber-Reinforced Polymer Girders
(Virginia Tech, 2004-08-23)
A group of researchers, engineers, and government transportation officials have teamed up to design two bridges with simply-supported FRP composite structural beams. The Toms Creek Bridge, located in Blacksburg, Virginia, ...
Dynamic forcing of oxygen, iron, and manganese fluxes at the sediment-water interface in lakes and reservoirs
(Virginia Tech, 2010-03-23)
The National Research Council recently called for a more interdisciplinary approach to drinking water research to address the critical issue of global drinking water supplies. Hypolimnetic oxygenation systems (HOₓ) are ...
Comparison of Creep Compliance Master Curve Models for Hot Mix Asphalt
(Virginia Tech, 2005-07-08)
Creep compliance of Hot Mix Asphalt (HMA) is an important property to characterize the material's viscoelatic behavior. It is used to predict HMA thermal cracking at low temperature and permanent deformation at high ...
Floor Vibrations: Girder Effective Moment of Inertia and Cost Study
(Virginia Tech, 2002-02-07)
Studies on the effective moment of inertia of girders that support concrete slabs using joist seats as the horizontal shear connections, and a cost efficiency analysis comparing composite and non-composite floor systems ...
Characterization of Punching Shear Capacity of Thin Uhpc Plates
(Virginia Tech, 2004-12-15)
UHPC (ultra-high performance concrete) is a relatively new type of concrete that exhibits mechanical properties that are far superior to those of conventional concrete and in some cases rival those of steel. The main ...
Discrete Event Simulation Model for Project Selection Level Pavement Maintenance Policy Analysis
(Virginia Tech, 2011-01-19)
A pavement investment and management process has a dynamic structure with cause and effect. Better investment decisions for maintenance will increase the condition of the flexible pavement and will end up with a better ...