Setup

Input Files

You can download the 2014 LODES based inputs here. This zip file (1.7 GB) in combination with the code in this repository has all the files needed to run the model. Extract the zip file to a desired workplace with at least 120 GB of free disk space.

Input Configuration

The primary control configuration for typical runs is the input_configuration.py file in the root directory of the Soundcast repository. This file should be updated to identify the location of model inputs prior to running.

Input Paths

Near the top of input_configuration.py, ensure that following parameters are accurate and point to the proper input set. If you extracted the input file above to your C: drive (for example), the name of the main inputs folder should be C:\2014_lodes.

`scenario_name = '2014_lodes'
model_year = '2014'
main_inputs_folder =  'C:\2014_lodes'`

Model Component Control

The default setting for Soundcast is to run all model components, including

• freeflow assignment and skimming
• Daysim choice models for all simulated person-days
• global iterations between assignment and choice modeling until convergence
• truck, bike, and external trip assignment
• summaries

These components may be run or skipped individually, as defined by parameters in input_configuration.py. The default settings should not be changed to run a standard full model run. If a run is interrupted or only assignment or summary scripts need to be run, True/False statements can be used to control whether model components are executed. The following table describes the configurable parameters in input_configuration.py.

Variable	Default Setting	Description
base_year	'2014'	Should be always be 2014 regardless of scenario, unless using another base year
scenario_name	'2014'	Input folder name
model_year	'2014	Model year used to look up year-specific inputs
daysim_code	'R:/SoundCast/daysim_2016'	No longer used
master_project	'LoadTripTables'	Should never change
main_inputs_folder	'R:/SoundCast/Inputs'	Directory for main inputs; scenario inputs should be a folder titled consistent with variable scenario_name
base_inputs	os.path.join(main_inputs_folder, base_year)	Path to base inputs
scenario_inputs	os.path.join(main_inputs_folder, scenario_name)	Path to scenario inputs
run_convert_hhinc_2000_2010	False	Default is to use 2014 base year
add_distance_pricing	False	Apply per-mile pricing
distance_rate_dict	{'am' : 13.5, 'md' : 8.5, 'pm' : 13.5, 'ev' : 8.5, 'ni' : 8.5}	Prices per mile applied when add_distance_pricing = True
add_hot_lane_tolls	False	Include high-occupancy toll lane pricing
hot_rate_dict	{'am' : 35, 'md' : 10, 'pm' : 35, 'ev' : 10, 'ni' : 10}	Price per mile (cents) by time of day
min_hov_node	199203	May change based on network input
run_accessibility_calcs	True	Calculate land-use and network accessibility measures from all-streets network; only needs to be performed once during model run
run_copy_daysim_code	True	No longer used
run_setup_emme_project_folders	True	Create empty (or overwrite existing) Emme projects at initial run setup
run_setup_emme_bank_folders	True	Create empty emmebanks at initial setup
run_copy_large_inputs	True	Move input files to model server for more efficient data transfer
run_import_networks	True	Load networks to each time-of-day Emme project
run_daysim_zone_inputs	True
run_copy_seed_skims	False	Seed skims are no longer tested in Soundcast; all assignments start from freeflow; always set False
run_skims_and_paths_seed_trips	False	Seed trips are no long used and tested in Soundcast; always set False
run_skims_and_paths_free_flow	True	Default for Soundcast is free-flow assignment
should_build_shadow_price	False	Shadow prices are considered inputs to save run time
run_skims_and_paths	True	Majority of trip assignment and skim building occurs when True
run_truck_model	True	Separately generate trucks and add to network
run_supplemental_trips	True	Separately consider external and special purpose trips not considered by Daysim
run_daysim	True	Run the main activity-generation portion of the model
run_supplemental_generation	True	Run if access to employment file is available; otherwise set to False and provide copy of supplemental trip productions
should_run_reliability_skims	True	Produce extra set of skims used for link reliability analysis
run_accessibility_summary	True
run_network_summary	True
run_grouped_summary	True
run_soundcast_summary	True
run_truck_summary	True
run_landuse_summary	False
run_daysim_report	True
run_day_pattern_report	True
run_mode_choice_report	True
run_dest_choice_report	True
run_long_term_report	True
run_time_choice_report	True
run_district_summary_report	True
pop_sample	[1, 1, 1, 1, 1, 1, 1, 1, 1]
max_iterations_list	[10, 100, 100, 100, 100, 100, 100, 100, 100]	List must be same length as pop_sample
min_pop_sample_convergence_test	10
shadow_work	[2,1,1,1]
shadow_con	30	% RMSE for shadow pricing convergence