Yi-Chang Chiu's research focuses on the development of dynamic traffic assignment model systems, including the DTA model DynusT, which has more than 50 institutional users worldwide. Related research activities include linking with the latest EPA Motor Vehicle Emission Simulator model for greenhouse-gas and air pollutants estimation, developing spatially and temporally decomposed DTA model paradigms, and modeling mesoscopic traffic simulation.
His work is currently supported by the Transportation Research Board and the Federal Highway Administration, for which he is developing an integrated model system with activity-based models and urban land-use simulation models.
Jennifer Duan is interested in experimental studies and computational simulation of turbulent flow, sediment transport and channel morphological processes. She has developed an enhanced two-dimensional numerical model to simulate the alluvial channel initiation, widening and migration processes. Other research focuses include water quality modeling and the interaction between surface and groundwater systems.
Among her recent projects is the application of her model to simulate hydrodynamics, sediment transport, bank erosion and alluvial channel developing processes in the Upper Jordan River in Utah, the Las Vegas Wash in Nevada, the Kankakee River in Illinois, the Upper Spanish Creek in California, the Salt River in Arizona and the Rio Grande in New Mexico. She also performs research on managing vegetation in open channels and investigating the mechanics of sediment transport in mountain gravel-bed streams.
Robert Fleischman is working on a grant from the U.S. government for evaluating analytical assessment tools through comparisons to observed seismic performance in the January 2010 Haiti earthquake.
Tribikram Kundu is working on an industry grant for wave field modeling to simulate scattering of ultrasonic waves by defects in structures with complex geometry.
Kevin Lansey, head of the department of civil engineering and engineering mechanics, and four UA colleagues were awarded $2 million by the National Science Foundation to research water reuse and supply systems.
Dean Papajohn's research interests include project delivery methods and sustainability of infrastructure.
Lianyang Zhang is currently working on a grant from the U.S. government for beneficial and sustainable recycling and utilization of mine tailings through geopolymerization, and a foundation grant for multiscale characterization of rock fractures to enhance reservoir production.
The Atlas Center is a center of excellence established by the University of Arizona for research and development of algorithms and software in traffic and logistics management. ATLAS consolidates and enhances related research, assists in transfer of intelligent transportation systems technology, and facilitates advanced educational programs in these areas for students, practicing engineers, managers and researchers.