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FTOT 2022_1 public release
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@kirbyledvina kirbyledvina released this 01 Apr 16:19
· 38 commits to master since this release
2022.1
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Learn about vigilant mode.

The 2022.1 release provides updates related to emissions reporting, build costs for processors, and network density reduction (NDR). Supplementary FTOT-related resources and tools have also been expanded or updated. The following changes have been made:

  • Expanded emissions report: Default emission factors for non-CO2 pollutants (CO, CO2e, CH4, N2O, PM10, PM2.5, and VOC) have been added for rail and water modes. Previously default emission factors were provided for just road. See Section 5.7 for more information.
  • Commodity density input file: Users can include a new input file with a list of commodity densities to be used in emissions calculation. The pre-existing density conversion factor in the XML will be used as the default value in the absence of commodity-specific density information. See Section 5.2 for more information.
  • Processor build costs: The user can now specify pre-defined candidate processors with unique build costs, in addition to or instead of FTOT-generated candidates. These pre-defined candidates are input as if they were existing processor facilities, but for the inclusion of a build cost that is added to the total scenario if they are used at all.
  • Network Density Reduction (NDR) bug fixes: FTOT now calls the update_ndr_parameter() method in FTOT steps O, P, and D in addition to the original call in the G step to avoid a case where NDR is programmatically turned off in one step but not the others. Also, a SQL filter was added to prevent FTOT from trying to calculate the shortest path for an origin-destination pair that does not exist in the subgraph of accepted modes for a commodity.
  • Changes to the scenario XML schema and templates: The scenario XML schema, template file, and Quick Start XMLs have been modified with (1) the addition of an optional element for a commodity densities input file and (2) updated default CO2 emission factors for rail and water modes.
  • FTOT setup script: To ensure successful installation of FTOT’s Python dependencies, the file simple_setup.bat now specifies version 2.9.0 for the imageio package.
  • New Resources on FTOT-Public Wiki: The “Guidance on Creating New Scenarios” Wiki page summarizes important steps and helpful tools for creating and updating FTOT scenarios. The “Adding Segments to the FTOT Network” Wiki page walks FTOT users through the process of adding segments to customize the existing FTOT Multimodal network. As part of this update, Section 3.2 of the main documentation was also updated to provide further information on the default FTOT network.
  • Link Removal Tool: The Network Resiliency and Link Removal Tool is a separate tool that assesses network resilience by ranking and sequentially removing links in the optimal solution and rerunning scenarios in FTOT to evaluate the resilience of optimal solution costs in the face of disruption. The Link Removal tool has been updated to Python 3 and is now based on FTOT 2021.4. The original version of the tool was based on FTOT 2020.3.
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