DaySim PNR Lot Choice

Overview

DaySim can be setup to support 1, 2, or 3 zone systems. See the users guide for more information. A 1 zone system uses only TAZs, a 2 zone system uses MAZs and TAZs, and a 3 zone system uses MAZs, TAZs, and Stop Areas. Stop Areas are essentially the same as transit access points (TAPs) in CT-RAMP and ActivitySim. In addition to the zone system setup, DaySim also has a park and ride (PNR) lot choice feature, where the user inputs a list of PNR lots/zones for DaySim to calculate drive transit path cost through the best lot for each OD pair. DaySim calculates the best lot for access and looks up the zone walk transit access time for egress. This feature is essentially a version of transit virtual path building (TVPB) as constructed for ActivitySim.

I believe the following configuration for TVPB can be used to model DaySim PNR lot choice.

Basic Configuration

zone_system: 3

taz_skims: 
  - HWYSKMAM_taz.omx
  - HWYSKMEA_taz.omx
  - HWYSKMEV_taz.omx
  - HWYSKMMD_taz.omx
  - HWYSKMPM_taz.omx

tap_skims:
  - HWYSKMAM_taz.omx
  - HWYSKMEA_taz.omx
  - HWYSKMEV_taz.omx
  - HWYSKMMD_taz.omx
  - HWYSKMPM_taz.omx

maz: maz_taz.csv
tap: taz_data.csv

maz_to_tap:
  walk:
    table: maz_tap_walk.csv
    # Provide one maz for each tap since DaySim just gets the transit access time from the zone file
  drive:
    table: maz_taz_tap_drive.csv
    # Provide a pre-processed accessible PNR lots/zones/TAPs for each origin zone

TRANSIT_VIRTUAL_PATH_SETTINGS:

  tour_mode_choice:
    units: utility
    path_types:
      DTW:
        access: drive
        egress: walk
        max_paths_across_tap_sets: 1 # only best
        max_paths_per_tap_set: 1
      WTD:
        access: walk
        egress: drive
        max_paths_across_tap_sets: 1  # only best
        max_paths_per_tap_set: 1
    tap_tap_expressions:
      SPEC: tvpb_utility_tap_tap.csv
      PREPROCESSOR:
        SPEC: tvpb_utility_tap_tap_annotate_choosers_preprocessor.csv
        DF: df
    maz_tap_expressions:
      drive:
        SPEC: tvpb_utility_drive_maz_tap.csv
        CHOOSER_COLUMNS:
          #- demographic_segment
          - DDIST
          - DTIME
          - WDIST