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The TRansportation ANalysis and SIMulation System (TRANSIMS) was developed in response to State DOTs' and MPOs' need for more accurate and more sensitive travel forecasts for transportation planning and emissions analysis. The development of TRANSIMS has been funded by the Federal Highway Administration, the Federal Transit Administration and the Office of the Assistant Secretary for Transportation Policy of the United States Department of Transportation, and by the Environmental Protection Agency.

The TRANSIMS Research Program, in conjunction with Los Alamos National Laboratory, made contributions in population synthesis; dynamic person-based multimodal routing; transport model interoperability; and large-area, person-based multimodal simulations. The TRANSIMS Deployment Program, in partnership with Argonne National Laboratory, introduced planning agencies to dynamic model concepts and provided training and application experience to students, researchers, consultants, and agency staff.

The TRANSIMS Community continues to evolve with participants from government, academia, and consulting. The source code is freely available on SourceForge under an established open-source license. Community members improve the documentation and provide peer-peer support on the community site.

For more information, please visit the TRANSIMS Open Source site.

Updated: 10/20/2015
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