EPA Webinar May 5th: MOVES3 Information for Experienced MOVES Modelers

Wednesday, May 5, 2:00 pm – 4:00 pm Eastern

Please join EPA’s Office of Transportation and Air Quality for a webinar describing how MOVES3 differs from MOVES2014b, the previous model version.  MOVES3, a state-of-the-science upgrade to EPA’s modeling tools, is EPA’s latest model for estimating air pollution emissions from cars, trucks, motorcycles, and buses, as well as many categories of nonroad equipment.

This webinar is designed for people who have experience with the MOVES model and is not intended as a training for new users.  However, anyone who is interested in MOVES is welcomed to attend.

This webinar will cover:

  • New content in MOVES3
  • Improvements in the user interface
  • Built-in MOVES tools
  • Other MOVES3 resources, including the new EPA report, Overview of EPA’s MOtor Vehicle Emission Simulator (MOVES3), released March 2021

EPA is holding this meeting using Microsoft Teams.  In the event you cannot connect to the meeting using the link below, you can phone into the webinar using the phone number and conference ID below.  (By May 4, the presentation will be available for download from EPA’s MOVES Training Sessions website.)

Microsoft Teams Meeting:

Join on your computer or mobile app
Click here to join the meeting

Or call in (audio only)
+1 202-991-0477,18021302#
United States, Washington DC
Phone Conference ID: 180 213 02#
Find a local number

By participating in EPA-hosted virtual meetings and events, you are consenting to abide by the agency’s terms of use. In addition, you acknowledge that content you post may be collected and used in support of FOIA and eDiscovery activities.

EPA posts new MOVES report – Overview of EPA’s MOtor Vehicle Emission Simulator (MOVES3)

EPA has summarized information about the MOVES mobile source air pollution emission inventory model in a new report: Overview of EPA’s MOtor Vehicle Emission Simulator (MOVES3).  We expect this document will be a useful technical reference for MOVES modelers and others who use MOVES results.

The new report includes the following sections:

Introduction, including information on MOVES scope, versions, and typical uses.

Updates for MOVES3, including a summary of new features, inputs, and updates to the user interface.

MOVES Onroad Algorithms, briefly summarizing the calculation methods used to estimate vehicle emissions.

MOVES Nonroad Algorithms, briefly summarizing the calculation methods used to estimate emissions from nonroad equipment.

MOVES Software Structure, including information on MOVES software components and MOVES databases.

MOVES3.0 Results, including comparisons of MOVES3 and MOVES2014b emission estimates for onroad vehicles at the national and county scale for a variety of years, and graphs of national nonroad emissions over time.

MOVES Evaluation, summarizing the MOVES review process and approaches to model evaluation.

Considerations When Using MOVES, explaining features of the MOVES design and input data that may affect the model’s applicability for specific modeling uses.

MOVES Documentation, providing links and descriptions to MOVES extensive documentation with more detailed information on guidance, user instructions, training and MOVES default inputs.

Acronyms

References

The MOVES3 overview report is available for download at www.epa.gov/moves/latest-version-motor-vehicle-emission-simulator-moves, as well as on the MOVES technical report pages https://www.epa.gov/moves/moves-onroad-technical-reports and https://www.epa.gov/moves/nonroad-technical-reports.

EPA posts patch to MOVES3 Mobile Source Emissions Model

EPA has posted a “patch” to MOVES3 that fixes a number of small issues with processing and aggregation, making it easier to use the model for variety of applications. The patched model, designated MOVES3.0.1, includes new code and a new default database, MOVESDB20210209.  It also includes scripts to assist with checking MOVES3 submissions for the 2020 National Emission Inventory.

MOVES3.0.1 is available for download at www.epa.gov/moves/latest-version-motor-vehicle-emission-simulator-moves.  Please download and use the new version if you have not yet downloaded MOVES3, if you intend to use the default scale or Nonroad features we have updated, if you are preparing an NEI submission, or if you are modeling Essex County, NY.  Otherwise, MOVES3 users can use either MOVES3.0.0 (the version posted to the web in November 2020) or MOVES3.0.1.  For more information about regulatory uses of MOVES, see the MOVES3 Policy Guidance which applies to all versions of MOVES3.

EPA’s MOtor Vehicle Emission Simulator (MOVES) is a state-of-the-science emission modeling system that estimates emissions for onroad motor vehicles and most nonroad equipment types for criteria pollutants, greenhouse gases, and air toxics.  MOVES3.0.1 includes the following updates:

  • Improved default vehicle miles travelled (VMT) for all U.S. counties, with small increases in most counties and large increases for Puerto Rico and the U.S. Virgin Islands
  • Improved default gasoline characteristics for Essex County, New York
  • Improved installer to address issues when MOVES is installed with Windows 7
  • Improved error checking to allow source type vehicle population of zero
  • Added scripts to help check MOVES3 submissions for the 2020 National Emission Inventory
  • Added Ant command to facilitate importing inputs from the command line
  • Added idle tab to the default scale data manager
  • Removed processing of irrelevant diesel fuel parameters
  • Removed incorrect check requiring RoadTypeDistribution inputs at default scale
  • Removed incorrect “core geography” database check at default scale
  • Removed petroleum and fossil fuel modeling options, as MOVES3 is not intended to be used for well-to-pump emissions modeling
  • Fixed problem with annual pre-aggregation that led to “data truncated” errors
  • Fixed problem with national pre-aggregation that incorrectly weighted meteorology inputs
  • Fixed problem with state pre-aggregation that incorrectly weighted E-85 fuel properties
  • Fixed problem that caused “divide by zero” errors in post-processing scripts
  • Fixed problem with tabbed output post-processing script that led to failures
  • Fixed problem with county scale XML importer for VMT
  • Fixed problem that led to “out of range RVP” errors in nonroad diesel-only runs
  • Fixed problem with nonroad runs for calendar years 2051-2061 that resulted in no output
  • Fixed problem in nonroad runs that could result in incorrect activity output of average horsepower and load factors for gasoline equipment when fuel subtype is checked

For additional technical details on these changes, see the MOVES3.0.1 milestone on the MOVES GitHub site: https://github.com/USEPA/EPA_MOVES_Model/milestone/1.

This update is a patch to MOVES3.  It does not change onroad criteria pollutant emission rates in MOVES3 at the county or project level, and it is not considered a new model for State Implementation Plan (SIP) and transportation conformity purposes.

Compared to the MOVES3 model that we posted in November 2020, MOVES3.0.1 will increase activity (VMT) for runs at the default (national) scale that use the default VMT allocations to county, as well as for runs that use nation pre-aggregation.  The VMT change will be less than 0.5 percent for counties outside Puerto Rico and the U.S. Virgin Islands, but changes in other vehicle activity (starts, source hours parked, etc.) may be larger.  More importantly, modelers using MOVES3 default VMT to model counties in Puerto Rico and the U.S. Virgin Islands will see a very large increase in activity, and thus emissions.  (Note that this change will not impact state and local regulatory use since default VMT cannot be used for SIP or conformity purposes.)

MOVES3.0.1 also updates the default gasoline for Essex County, New York, changing it from reformulated gasoline to conventional gasoline.  While one portion of Essex County is an area that would use reformulated gasoline, that portion has no gas stations and thus conventional gasoline is the appropriate fuel in MOVES for this county.  In runs where Essex County is modelled with default fuel inputs, MOVES3.0.1 will estimate higher emissions from gasoline vehicles for most pollutants as compared to MOVES3.0.0, but will estimate lower CO emissions. If you have questions regarding fuels inputs for state and local regulatory analyses, see EPA’s MOVES3 Technical Guidance.

FHWA Air Quality and Sustainable Transport Highlights

The purpose of this message is to inform you that the latest issue of the FHWA Air Quality and Sustainable Transport Highlights is now available.

The Highlights provide the latest news and information on transportation related air quality and sustainability activities, including information on transportation conformity, resiliency, and other related activities.

Items of interest in this issue include:

  • FY 2020 Congestion Mitigation and Air Quality Improvement (CMAQ) Program Annual Reports
  • EPA’s Motor Vehicle Emission Simulator (MOVES3) now official air quality model.

Past issues of the Air Quality and Conformity Highlights are available at: http://www.fhwa.dot.gov/environment/air_quality/conformity/highlights/

Past issues of the Sustainable Transport Newsletter are available at: https://www.fhwa.dot.gov/environment/sustainability/newsletter/index.cfm

I encourage you to share the Highlights with State and local transportation and air quality partners, and all who may be interested in transportation related air quality and sustainable transport issues. Divisions and the Resource Center are encouraged to email suggestions for items to be included in the Highlights to Victoria Martinez at [email protected] or Becky Lupes at [email protected].

MOSERS Guidebook 3rd Edition – Release Note

The MOSERS development team is pleased to announce the web posting of the latest version of the Texas Guide to Accepted Mobile Source Emission Reduction Strategies, MOSERS Guidebook 3rd Edition. This upgrade to MOSERS Guide replaces the MOSERS Guidebook 2nd Edition released in 2007 for estimating air pollution emissions from transportation emissions reduction strategies. Compared to the previous MOSERS document, MOSERS Guidebook 3rd Edition includes additional strategies and updated technical content related to different aspects of transportation air quality.

MOSERS Guidebook 3rd Edition consists of two documents:

Module 1 – Overview of Transportation Air Quality. This module provides an overview of transportation and air quality planning, and discusses key topics relating to federal regulations, transportation conformity, mobile source emissions modeling, and transportation control measures. This guidebook contains updated graphics, easy-to-navigate charts, and comprehensive resource listings to help the reader gain an understanding of the subject matter and identify other resources for further reading.

Module 2 – Methodologies. This module contains a comprehensive set of analysis methods that can be used in the evaluation of emissions reductions achievable through the adoption of MOSERS.

MOSERS Guidebook 3rd Edition can be downloaded through the MOSERS web page (https://txaqportal.org/mosers). This webpage is the source for:

  • MOSERS Guidebook,
  • MOSERS Spreadsheet Tool,
  • MOSERS web-based documentation, and
  • Emission rates lookup tables for use with MOSERS equations.

For more details on the different components of MOSERS, download the MOSERS Summary Flyer.

Contact Reza Farzaneh ([email protected], Tel. 512.407.1118) for all inquiries regarding MOSERS Guidebook, MOSERS Spreadsheet Tool, and MOSERS training.