Search Frequent Questions

Displaying 1 - 15 of 16 results

• How do I Obtain the Populations for Each of the MOVES Source Types?

  See More Frequent Questions about MOVES and Related Models . To output vehicle populations, when setting up your RunSpec select the "Inventory" calculation type from the Scale panel and the "Population" activity option from the General Output panel of the MOVES GUI. The movesactivityoutput table in your MOVES output database…

  • Last published: July 11, 2024

• How are Counties Mapped to Fuel Regions in MOVES? How Can I Substitute Alternate Fuel Formulations?

  See More Frequent Questions about MOVES and Related Models . The RegionCounty table in the MOVES default database maps each county to a MOVES fuel region (defined by regionCodeID). If you are conducting a County or Project Scale Run, you do not need to modify this table to use alternate…

  • Last published: July 11, 2024

• What sources make up the Tier 1 categories used in the emissions trends?

  Tier 1 categories are assigned by source classification codes (SCCs) that are the most specific processes available in the NEI. The latest SCC list with the Tier 1 assignments can be downloaded from the EPA SCC website in Comma Separate Values (CSV) format.

  • Last published: May 1, 2024

• What is the cause of the large decrease in electric utility emissions, particularly sulfur dioxide, starting in 1995?

  SO2 emissions reductions from utilities during this time are primarily attributed to the impacts of the acid rain program. As described on EPA’s Acid Rain Program web page, Phase 1 of this program began in 1995 and affected 263 units at 110 most coal-burning electric utility plants in 21 eastern…

  • Last published: May 1, 2024

• How does the Fuel Wizard Determine which Fuel Formulations to Modify?

  See More Frequent Questions about MOVES and Related Models . The Fuel Wizard only works on fuel formulations that are in your county database (CDB) and it "edits" them to comply with the alterations you provide. If you wish to create a set of alternate fuels, you will need to…

  • Last published: July 9, 2024

• Where Does EPA Obtain Default Vehicle Miles Traveled (VMT)?

  See More Frequent Questions about MOVES and Related Models . MOVES gets default national vehicle miles traveled (VMT) values from the Highway Performance Monitoring System (HPMS) of the Federal Highway Administration, which collects VMT information from every state. Although this is a good source of consistent total VMT information, the…

  • Last published: July 10, 2024

• How Do I Create my Own I/M Program Input Table Using the "Create Template" Option?

  See More Frequent Questions about MOVES and Related Models . If you already have an I/M program in your area, you should always begin by exporting the default I/M program in MOVES, reviewing it, making any changes to the default program, and re-importing it, rather than trying to fill a…

  • Last published: July 10, 2024

• Where Can I Find Default HPMSBaseYearVMT Values for a Specific County?

  See More Frequent Questions about MOVES and Related Models . MOVES does calculate default values for VMT for each calendar year for each county. Since these values are calculated, they are not found in any table in the default database. If you wish to obtain the default estimates, you will…

  • Last published: July 10, 2024

• Why Does the "hourvmtfraction" Table in the MOVES Default Database Include Fractions for roadTypeID 1 (off-network)?

  See More Frequent Questions about MOVES and Related Models . The original concept for MOVES assumed that there would be some vehicle miles traveled (VMT) not accounted for in the other four road types. This remaining VMT would be accounted for in roadTypeID=1. As the model developed, it was decided…

  • Last published: July 11, 2024

• Can Programs Other Than Microsoft Excel be Used to Edit Input Database Files?

  See More Frequent Questions about MOVES and Related Models . Yes. In addition to MS Excel files, in the County Data Manager/Project Data Manager, MOVES can read in other file types using ASCII text and comma separated variables.

  • Last published: July 11, 2024

• This opportunity does not include Focus Area 1, AOC/Toxics. Many AOC may have underserved community populations. Does EPA have guidelines for how to operate in AOCs without causing duplication interference in that program?

  The principal recipient may fund subaward projects within AOCs, provided the primary focus of the project meets the eligibility requirements. EPA will work closely with selected principal recipients as part of our substantial involvement to ensure there is adequate coordination with state and federal AOC programs.

  • Last published: September 5, 2024

• What are the Units of Road Grade in the Links Table?

  See More Frequent Questions about MOVES and Related Models . The field road grade in the Links table should be entered as a percentage rather than a decimal fraction. In other words, a road grade of 4% should be entered in MOVES as 4, rather than 0.04.

  • Last published: July 10, 2024

• Why do mobile source NOx emissions jump higher between 2001 and 2002 on the emissions trends?

  The emissions model used for mobile sources changed from MOBILE6.2 to MOVES 2010 in December 2009. This change included a notable increase in NOx emissions. The EPA adjusted data back to 2002 to reflect the change in models. The higher emissions in 2002 are because of this method change and…

  • Last published: May 1, 2024

• Is it required that the principal recipient conduct a competitive RFP process upon award of the GLRI grant?

  Establishing the Project RFA is a key element of the GLEJGP. All subawards to Project Subrecipients must be awarded using a fair and transparent process evaluating the following: An evaluation of any possible Project Subrecipient's entity’s abilities to carry-out the project and sustain expected outcomes after the initial project period…

  • Last published: August 5, 2024

• Why do the PM2.5 emissions for the electric utilities source category jump up between 1998 and 1999?

  The estimation method for PM emissions from fuel combustion sources was enhanced beginning with the 1999 National Emissions Inventory. Prior to 1999, the emissions measurement data methodology only included the filterable portion (which means the solid particle matter at elevated stack temperatures). Beginning with the 1999 NEI, both the filterable…

  • Last published: August 15, 2024