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Logsums
Home > TravelModel > UsersGuide > DataDictionary > Logsums
The following tables are generated by the RunLogsums step.
| Column Name | Definition | Possible Values/Range |
|---|---|---|
| taz | Traffic Analysis Zone (TAZ) of home location | Positive integers (1-1454). |
| walk_subzone | Walk to transit sub-zone | Integer, 0 - cannot walk to transit; 1 - short-walk to transit; 2 - long-walk to transit |
| autos | Household automobiles | Integer (0, 1, 2) - from dummy households |
| autonomousVehicles | Household automobiles, autonomous | Integer (0, 1) - from dummy households |
| income_group | Annual household income ($2000) label | Integer, 1 - lowInc, 2 - medInc, 3 - highInc, 4 - veryHighInc |
| workDCLogsum | Workplace destination choice logsum | Float |
A wide table version of person_workDCLogsum.csv, based on the following grouping (representing accessibility markets): income_group + auto_sufficiency + AV presence + subzone. TAZ is the key, therefore one row for each TAZ.
Similar to workDCLogsum.csv, but with grouping = income_group + auto_sufficiency + AV presence, and taz + subzone as the key, to be consistent with old mandatoryAccessiblities file.
| Column Name | Definition | Possible Values/Range |
|---|---|---|
| taz | Traffic Analysis Zone (TAZ) of home location | Positive integers (1-1454). |
| walk_subzone | Walk to transit sub-zone | Integer, 0 - cannot walk to transit; 1 - short-walk to transit; 2 - long-walk to transit |
| autos | Household automobiles | Integer (0, 1, 2) - from dummy households |
| autonomousVehicles | Household automobiles, autonomous | Integer (0, 1) - from dummy households |
| income_group | Annual household income ($2000) label | Integer, 1 - lowInc, 2 - medInc, 3 - highInc, 4 - veryHighInc |
| dcLogsum | Shopping destination choice logsum | Float |
A wide table version of tour_shopDCLogsum.csv, based on the following grouping (representing accessibility markets): income_group + auto_sufficiency + AV presence + subzone. TAZ is the key, therefore one row for each TAZ.
Similar to shopDCLogsum.csv, but with grouping = income_group + auto_sufficiency + AV presence, and taz + subzone as the key, to be consistent with old nonMandatoryAccessiblities file.
Generated from households and persons datasets, by AccessibilityMarkets.R.
| Column Name | Definition | Possible Values/Range |
|---|---|---|
| taz | Traffic Analysis Zone (TAZ) of home location | Positive integers (1-1454). |
| walk_subzone | Walk to transit sub-zone | Integer, 0 - cannot walk to transit; 1 - short-walk to transit; 2 - long-walk to transit |
| walk_subzone_label | Walk to transit sub-zone label | String, "Cannot walk to transit", "Short-walk to transit", "Long-walk to transit" |
| incQ | Annual household income ($2000) quartile label | Integer, 1 - lowInc, 2 - medInc, 3 - highInc, 4 - veryHighInc |
| incQ_label | Annual household income ($2000) quartile label | String, "lowInc", "medInc", "highInc", "veryHighInc" |
| autoSuff | Household auto sufficiency label (workers vs. autos) | Integer, 0 - zero auto, 1 - autos less than workers, 2 - autos equal to or greater than workers |
| autoSuff_label | Household auto sufficiency label (workers vs. autos) | String, "0_autos" (zero auto), "autos_lt_workers" (less than), "autos_ge_workers" (equal to or greater than) |
| hasAV | Indicator for autonomous vehicle ownership | 0 (no AV), 1 (has AV) |
| num_persons | Number of persons in the segment | Positive integers |
| num_workers | Number of workers in the segment | Positive integers |
| num_workers_students | Number of workers and students in the segment | Positive integers |
| Column Name | Definition | Possible Values/Range |
|---|---|---|
| taz | Traffic Analysis Zone (TAZ) of home location | Positive integers (1-1454). |
| taz_subzone | Concatenation of TAZ and Walk to transit sub-zone ({0:'c', 1:'a', 2:'b'} for subzone mapping) | String, 1a, 1b, 1c, 2a, ... 1454a, 1454b, 1454c |
| mandatory_logsum | Weighted relative mandatory logsum (weighting details) | Float |
| nonmandatory_logsum | Weighted relative non-mandatory logsum | Float |
| combo_logsum_prescale | Combination of Combine mandatory and non-mandatory logsums | Float |
| combo_logsum | Combo logsum after scaling (details) | Float |
Previously the MTC/ABAG Analytical Modeling Wiki (http://analytics.mtc.ca.gov/foswiki/Main/WebHome)
Please email [email protected] if you find anything missing here.