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Project Meeting 2017.07.07

bstabler edited this page Jan 15, 2018 · 16 revisions

Revisions for support for logsums

  • Working through this plan
  • The mode choice availability rules are not implemented so the logsums will be funny
  • We'd like to implement the availability rules now as expressions instead of orca calculated columns
  • We don’t yet have support for chunked simple_simulate, but we will probably want to implement it now that we are running mode_choice simple to calculate compute_logsums on person_count*tazcount choosers
  • Revised work location with logsums model is working, but still untidy, no efficiency, not much testing, no pep8
  • The in-progress logsums branch is here
  • We still need to update the documentation and run it on the full model setup as well

Project management

  • We're on budget and have spent around 50% of the budget
  • We should finish up the logsums task in a few weeks and then we have two smaller tasks remaining
  • So we should be done with this phase of work in a few months
  • I'll share the phase 3 amendment scope and cost estimate with the group so they can work on accelerating funding
  • @Clint discuss outreach to interested MPOs next time

Multiple zone systems

  • @Wu discussed results of the updated performance tests
  • For most tested methods, the improved software is 30-80 times faster
  • Previously, two model components ("stop location" and "trip mode choices") were not able to complete most of the test scenarios that mimic SANDAG settings, except one trip mode choice scenario, due to the extreme runtime. With the software improvements, all tests finished within reasonable runtime
  • See Wu's memo for more details
  • @Wu update/create new tests page
  • With the remaining budget, we'll look into speeding up get_taps_mazs

Buffering

  • Stefan confirmed this week that the results of the parcel buffering in ActivitySim are the same as in Soundcast
  • He is pretty close to issuing a pull request once he cleans things up a bit
  • He expects a bit of back and forth before the request is actually accepted, but thinks it is time for feedback
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