Project Meeting 2022.02.10 - ActivitySim/activitysim GitHub Wiki

Agenda

Update on SimWrapper:

• Have been making improvements based on the feedback presented in previous meetings
• Immediate development focus
  • adding summarize step to MTC example. Integrating with SANDAG example(s) might also make sense considering the work they have already performed on evaluating it
  • Updated SimWrapper
  • Added access to all pipeline tables in the summarize step (e.g. landuse)
• Future development
  • Optimization of summary step, access to multi-level skim data (interest from partners in this feature, can a partner help with this? Including them is not exactly straight forward, will probably need consultant help)
  • SimWrapper improvements such as map creation, chart design, support for other browsers
• Recent Updates on SimWrapper
  • maps no longer always open in San Francisco
  • error messages when dashboard configurations have errors
  • fixed some crashes when datasets do not load properly
  • many layout improvements
  • added functionality for "simwrapper here" to locally host simwrapper (just like how Jupyter notebooks work)
  • added Vega-Lite charts for more plot customization
  • improved performance: datasets only load once even if used in multiple panels, many browser "hangs" eliminated. Improvements in GeoJSON rendering still to come (using smaller/simpler GeoJSON files helps and makes this issue not as high priority).
  • Will push new version to ActivitySim github soon
• Further Discussion
  • Visualization rendering works best on machines that have a GPU (even a low quality one). Using the new "simwrapper here" command should be able to help this problem by rendering with the machine with a GPU but getting the files from the server.
  • SANDAG will be attempting to stand up "public facing" server for internal visualization.
  • Would like to wrap up the phase 6b development task with a focus on implementation with/for a partner
  • Will include SimWrapper as a dependency in ActivitySim as part of the pull request
• Useful Links
  • SimWrapper changelog: https://simwrapper.github.io/docs/changelog
  • python SimWrapper tool docs: https://pypi.org/project/simwrapper/
  • Recent examples of full-featured SimWrapper dashboards: https://vsp.berlin/simwrapper/komodnext https://vsp.berlin/simwrapper/public/de/hamburg/hamburg-v2/hamburg-v2.2/viz

Admin:

• Phase 7 notices to proceed should hopefully be sent soon, currently waiting on ensure back-end accounting items are in order
• Might be possible to help support SimWrapper development with Phase 7 general funds