Project Meeting 2020.08.20 - ActivitySim/activitysim GitHub Wiki

Task 1 Project Management (milestone)

  • Fixed a coefficients lookup bug for university tour mode choice that was introduced when separating data from coefficients for estimation. The meaning of school in TM1 was overloaded - sometimes it meant school (both k-12 and univ) and sometimes it meant just k-12. We should eventually clean this up throughout the system.
  • Our test system should catch this kind of stuff
  • We're using a very small sample / set of zones for testing so some issues can slip through. Maybe we should fix this?
  • @Stefan/Joe to help with community questions like #326.

Task 2 Strategic Planning (milestone)

  • Draft strategic development and contribution plan updated based on comments
  • This version is much stronger than the previous version
  • Still lots to talk about, such as agreeing on the principles (i.e. what is ActivitySim), what the test system is, and supporting use in multiple regions
  • @Everyone review principles ahead of next call

Task 10 Support for Three Zone Systems and TVPB (milestone)

  • Three zones and TVPB working through tour mode choice for the simple test example
  • Running slower than one/two zone systems but this is expected at this time
  • We discussed some improvements to the design/specification and Jeff is working on those - namely syncing up the accessibility calculator and the tour/trip mode choice model to use the same underlying three zone / TVPB engine so there is no (or less) duplication
  • Plan to get three zone / TVPB working through trip models next week
  • Will turn our attention to performance / caching / multiprocessing needs after that but need the better example soon
  • @Lisa and I coordinating on the TM2 tour mode choice data prep
    • Plan to use the Marin County version of TM2 since it is the most stable
    • Lisa and I will reach out to Marin for an official data request
  • Maybe test TM2 accessibility calculator too since it also changed from TM1 and is before tour mode choice in the model stream
  • May need to hold / slow development until better example ready