ActivitySim#
The mission of the ActivitySim project is to create and maintain advanced, open-source, activity-based travel behavior modeling software based on best software development practices for distribution at no charge to the public.
The ActivitySim project is led by a consortium of Metropolitan Planning Organizations (MPOs) and other transportation planning agencies, which provides technical direction and resources to support project development. New member agencies are welcome to join the consortium. All member agencies help make decisions about development priorities and benefit from contributions of other agency partners. Additional information about the development and management of the ActivitySim is on the project site.
Start here to learn about using ActivitySim, including how to install, the software, and how to configure and run models.
Start here to learn about developing ActivitySim, including creating model components, or changing the codebase.
Consortium Supported Examples
The ActivitySim consortium actively supports two example models, each of which can be used as a starting point (i.e. a “donor model”) for new implementations.
The MTC Example, our one-zone system prototype. This example is originally based on MTC’s Travel Model One (TM1), but has evolved to be a slightly different model.
The SANDAG Example, our two-zone system model. Some effort has been made to keep it aligned with SANDAG’s model, but it is not an exact copy of SANDAG’s production model.
Member Agency Models
Several consortium member agencies have open-sourced their ActivitySim implementations. These open models may or may not be complete calibrated tools. Unless clearly marked, users should not assume that mlinked models are “official” implementations used for policy analysis; public agencies often publish in-progress model development to foster collaboration and transparency. Contact the agencies directly with questions.
Puget Sound Regional Commission (Seattle)
Metropolitan Council (Minneapolis-St. Paul)