Project Meeting 2021.01.05 - ActivitySim/activitysim GitHub Wiki

Technical Meeting

• Discuss legacy UrbanSim code

  • We're going to clean-up any UrbanSim derivative issues
  • So we'll either make orca a dependency or re-write it since injection is a common idea
  • Likely a couple weeks of Jeff's time to re-write it
  • The AMPO signed contract and the contract maintained on the box account by the consortium is different
  • The need for cleaning this up isn't motivated by UrbanSim but by AMPO's legal team
  • Likely we'll do a task order later this year to remove orca and make the inject class smarter

• Update on estimation integration for trip models

  • Jeff working on trip mode choice currently and I'll plan to review - probably early next week
  • We won't be supporting the legacy approach of no coefficient files
  • We only have a few users and the software is still in the beginning, but moving forward, let's be mindful of backwards compatibility
  • Using a deprecated approach for changing the interface / API is a good approach that we should adopt
  • Let's also be more careful about releases and do them more often

• Strategic plan

  • I need to review

• Shadow pricing

  • SEMCOG shared that their shadow pricing testing showed that it didn't help all that much and so they may turn it off
  • We can talk with Joel next time to learn more
  • We should think about a good way to memorialize online findings like this
  • Maybe a library, a forum, or something for the ActivitySim body of knowledge

• Discuss release and ARC

  • Test system now using Travis build matrix so jobs are better separated and the platform can more easily be extended with new code and tests
  • Updated and extended maintained examples, see example_manifest.yaml and activitysim_resources
  • This is also a good way for us to grow the system with confidence and stability
  • Clint's ARC extensions are in, but tests are failing
  • Clint to review and reach out for help if needed
  • We're close to releasing