Project Meeting 2019.03.08
- We fixed all the verification table issues and re-traced a HH to confirm the fixes
- TM1 style shadow pricing looking better, see plots below, but still not converging as fast as TM1 so we're still investigating
- Size term by iteration for zone 1 work low income segment below
| zone 1, work_low, sp iteration | ctramp style |
|---|---|
| target | 3657 |
| 1 | 2490 |
| 2 | 2625 |
| 3 | 2824 |
| 4 | 2860 |
| 5 | 3069 |
| 6 | 3132 |
| 7 | 3123 |
| 8 | 3188 |
| 9 | 3249 |
| 10 | 3346 |
- Daysim style shadow pricing needs some fixing as well (after reviewing the code and discussing with Mark), which we are still working on, see #250. We also updated the expression file as a result.
- Updated the example to use ctramp method and more efficient damping factor
- Implemented mode choice logsums for mandatory tour time-of-day choice as part of the verification/clean-up
- Now working on a 10% sample run of the subsequent submodels, but ran into tour mode choice sampling and logsums not being implemented for escort tours.
- We agreed to go ahead and implement missing agreed upon features such as this
- This will slow down the model so its important we complete it before talking about runtimes
- We plan to continue to trace calculations expression-by-expression to ctramp and to add expressions to force choices for the trace household to match TM1 so we can compare utilities
- @Ben to create shadow pricing total workers by taz target versus modeled plot like ARC
- @Ben to continue debugging shadow pricing calculations
- @Jeff to implement logsums and sampling for non-mandatory tour destination choice
- Fixing the daysim approach to shadow pricing isn't important so we'll either fix it soon or drop it
- We've spent about $145k of the $210k budget to date, ~$65k remaining
- Our progress report is really starting to look complete
- As we discussed at TRB, we prioritized verification over support for two zone system and assistance to ARC/SANDAG. These tasks were budgeted at $80k total so we're now into those budgets.
- We decided:
- @Ben/Jeff to estimate cost to implement remaining agreed upon features in our progress report
- We will push the two zone system task to the next phase
- We will push the ARC/SANDAG support tasks to the next phase
- We will implement the TM1 free parking parking
- Remaining budget will be used for implementing missing features and verification since our summer release is top priority
- The updated DBE GFE looked good to AMPO
- c=ct-ramp multiplicative method, d=daysim additive method
