Transims is a series of integrated transportation and air quality analysis and forecasting models being developed at the Los Alamos National Laboratory (LANL). The principal components of TRANSIMS are an activity generator, an intermodal route planner, a traffic microsimulation, and an environmental analysis module. The TRANSIMS design has been driven by legislative and analytical requirements that exceed the capabilities of current models and methodologies. To address these concerns, TRANSIMS will offer transportation planning agencies increased policy sensitivity, more detailed vehicle-emission estimates, and improved analysis and visualization capabilities.
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