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MOVES (Motor Vehicle Emission Simulator) - Frequent Questions

This "Frequently Asked Questions" web page does not create any new requirements. The questions on this page were submitted by people using MOVES for a wide range of analytical and/or regulatory purposesThe answers are largely based on a number of existing MOVES technical and policy guidance documents, the MOVES user guide, and other MOVES technical documents, which are cited in the responses as appropriate. While every attempt has been made to assure consistency with these documents, in all cases users should refer back to the original EPA documents that are posted on the MOVES web page, other EPA web pages, and any applicable regulations and statutes. Throughout the answers, we have tried to note instances where a particular answer applies only in certain circumstances or where a particular approach might be required for a SIP or conformity submission. EPA retains the discretion to adopt approaches on a case-by-case basis that may differ from the answers and existing EPA guidance but still comply with the statute and applicable regulations. This web page may be revised periodically without public notice. As always, we recommend that you consult your EPA Regional office for specific implementation questions

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  1. ViewedMost Popular Topics
  2. 10894When should MOVES2010 or MOVES2010a be used for SIP and transportation conformity analyses?
  3. 10617How do I avoid mistakes when a table contains multiple runs? I’ve noticed that if a table includes output from multiple runs, it is very easy to mistakenly sum them together, thereby drastically increasing emissions.
  4. 10588I had a question about doing a MOVES run in Emission Rate Mode. Does the meteorology tab for inputs have to be satisfied to run the model in this mode? If you do not use your own input file, will the defaults automatically be used for the run?
  5. 10209The template created for IM Programs contains rows for all source types and all fuel types; however MOVES does not provide I/M benefits for all source types and fuel types. How do you recommend creating an Excel input table for the IM Programs which I can then import using the County Data Manager?
  6. 10025It seems that there is no air toxics ratio table in the default MOVES database. How does MOVES determine the air toxics ratios?
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  2. 11:21:2014Is there any documentation available for installing MOVES 2014 on Linux?
  3. 11:21:2014I am running MOVES2014 runspecs similarly set up that are taking 100 minutes to complete. The second quarter of that time MOVES is apparently idle, then at fifty minutes (halfway through the run) the workers finally start doing work. Do you know what is happening here, and how can we eliminate this idle time?
  4. 09:25:2014Does MOVES2014 have a fuel year where the fuel properties are held constant? What was the last year for actually sampled data for fuels in MOVES2014?
  5. 09:25:2014I’m having trouble figuring out how the fuel regions relate back to counties. I can’t find where the two are linked. How would I define what county is in each fuel region?
  6. 09:25:2014Are the NO values in the MOVES output files actually NO (molecular weight 30), or is the NO expressed as NO2 (molecular weight 46)?
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