Zephyr’s activities are project- and topic-focused groups working on specific tools, standards, and initiatives — a great fit if you’d rather contribute to a specific effort than serve on an organization-level committee. Find one below and reach out to get involved, or click through for the full details.
Getting involved in an activity requires current Zephyr membership — not a member yet? Join here first.
| Activity | Description | Contact | |
|---|---|---|---|
| TMIP: Travel Model Improvement Program | An online Community of Practice for the Travel Model Improvement Program, sharing decades of webinars and expertise. | [email protected] | More Info |
| ActivitySim | Open-source, activity-based travel behavior modeling software built and maintained by a consortium of planning agencies. |
Joe Castiglione [email protected] |
More Info |
| DMDU: Decision Making under Deep Uncertainty | A working group promoting practical approaches to travel forecasting and planning decisions under deep uncertainty. |
Marty Milkovits and Flavia Tsang [email protected] |
More Info |
| Network Data Standard and Management Tools | Open data specifications and tools—like GMNS and NetworkWrangler—for building and sharing routable travel model networks. |
Lisa Zorn [email protected] |
More Info |
| Software Badging | Badges recognizing open-source software tools that meet Zephyr's development and transparency criteria. |
David Ory [email protected] |
More Info |
| Open Science | Badges recognizing open, reproducible transportation research to encourage sharing of data, code, and models. |
Andre Carrel [email protected] |
More Info |
| GTFS-ride | A data standard for fixed-route transit ridership, revealing where and how riders actually use the system. | [email protected] | More Info |
| Learning Sessions | Periodic online sessions sharing practical travel-modeling knowledge with the Zephyr community. |
Bill Hereth [email protected] |
More Info |
| MoMo: Modeling Mobility | The premier conference for professionals working with travel models, transportation data, and quantitative analysis. |
Peter Bosa [email protected] |
More Info |
| Travel Diary Survey Working Group | A working group developing shared methods and practice for travel diary survey design and analysis. | [email protected] | More Info |
| UrbanSim Users Group | A community of practice for planners and researchers using the UrbanSim land use modeling platform. |
Joe Castiglione [email protected] |
More Info |
Prefer to get involved at the organization level instead? Check out our committees.
Zephyr is a community effort — join as a member, support our activities, or say hello in the Zephyr Forum.
Become a Member Donate Join the Zephyr Forum