Revise travel day and region variable

[sgreenbury]

Closes #86.

This PR continues from closed #82 rebased on main with new branch name.

This PR:

• Adds configurable common day of travel for households and revise the filtering of NTS trips to before matching to increase matches with non-missing trips. When config is not common travel day, then any day is chosen from the set of configured nts_days_of_week
• Serializes a chosen_day randomly picked during feasible zone assignment
• Revises the subset of commuting flows to exclude WFH as it seems NTS would not record a trip
• Relatedly, the PR adds "scaling" of flows that can be configured currently using the part_time_work_prob parameter (see below). The related census question 49 ("Where do you mainly work?") suggests that on a randomly chosen work day an individual would not necessarily be commuting. A float for scaling can be applied to the flows applicable if use_percentages=False (see Discrepancy in no. of work trips: census vs nts/acbm #86 (comment) for additional discussion)
• Adds initial approach for matching for unmatched individuals after household matching
• Revises the variable used for region to "PSUStatsReg_B01ID" as this is included for 2021 and 2022
• Adds tests

Remaining tasks:

• Update the README file strucuture
• Explore the issue around the increased number of h - w -h chains in the validation script

[sgreenbury]

Currently config of scaling of the flows is implemented through the part_time_work_prob. The name of this parameter should be revised - however, this will change the ID of the config so it would be preferred to update the name in a subsequent PR once the current parameter testing is complete.

[Hussein-Mahfouz]

@sgreenbury does the config.toml need to use the new regions in the nts_regions variable?

[sgreenbury]

@sgreenbury does the config.toml need to use the new regions in the nts_regions variable?

Yes this should be updated to the new set of regions included in "PSUStatsReg_B01ID". Validating this when the config is parsed might be helpful too, e.g.:

acbm/src/acbm/config.py

Line 57 in 9fe4170

@field_validator("commute_level")

I'll add this.

[sgreenbury]

Add the new parameters to the base.toml as being used to document config. In particular, more on common_household_day: bool = True for case when true and false

[sgreenbury]

Add part_time_work_prob and a description of what the parameter does and also the effect when use_percentages = false/true

[sgreenbury]

As discussed with @Hussein-Mahfouz, as well as changes above, also check the determinism for a given seed (move to new issue).