Motor Vehicle Emission Simulator (MOVES) 2010: Errata/Information Sheet


   MOVES2010 Errata/Information Sheet
United States
Environmental Protection
Agency

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              MOVES2010 Errata/Information Sheet
                             Assessment and Standards Division
                            Office of Transportation and Air Quality
                            U.S. Environmental Protection Agency
SER&
United States
Environmental Protection
Agency
EPA-420-B-09-043
December 2009

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MOVES2010 Errata/Information Sheet
December 22, 2009

This table lists substantive errors and concerns that have been identified for MOVES2010.
Some of the items listed here are errors that we intend to fix at a later date. Others items are not
errors, per se, but areas where the MOVES design may not match user expectations.

If you find problems with MOVES that are not on this list, please let us know by emailing
the MOVES team at mobile@epa.gov . We plan to update this list as needed. Thank you for
helping us improve the MOVES model.
Problem Reported
1 . Default vehicle miles traveled (VMT)
projections may not match VMT projections
used in other EPA models (such and the
National Mobile Inventory Model, NMEVI).

2. There are check boxes on the "Pollutants
and Processes" panel for methane for the
Evaporative Vapor Venting, Evaporative
Permeation and Evaporative Fuel Leak
processes, even though the emissions are
always negligible.

3. When making a retrofit parameter file for
importing for the On Road Retrofit Strategies
panel, you must not use the PollutantID,
ProcessID, FuelTypelD or SourceTypelD
numbers. You must use the text names for
these parameters.

4. In Project Level analysis, the user can
enter a single average speed. Entering an
average speed of "zero" assigns all activity to
the "idle" operating mode bin. However, the
MOVES "idle" operating mode bin includes
some operation at speeds near, but not equal
to, zero. As a consequence, MOVES will
estimate non-zero brakewear and tirewear
emissions for motionless idling vehicles.

Error or
information
item?
Information

Information

Suggested User Action
NA

None

See user guide for detailed
instructions.

When estimating brakewear and
tirewear for idling vehicles that
are always completely
motionless, either do not request
tirewear and brakewear, or
replace the MOVES output
associated with this activity with
values of zero.
Note, this is not a problem for
non-operating parked vehicles or
"Extended Idling" vehicles.

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MOVES2010 Errata/Information Sheet
EPA-420-B-0943
Problem Reported
5. It has been reported that importing data
from spreadsheets using the County Data
Manager or the Project Level Data Manager
sometimes does not result in a green check in
the graphical user interface, even though there
appear to be no problems with the imported
data and MOVES runs successfully. We have
not yet been able to identify the cause of this
anomaly.

6. This problem is associated with #5 above.
When using the Project Level Data Manager
misleading results may occur when entering
an Operating Mode Distribution if the Links
information is not correct.

7. When computing emission rates, the
portion of evaporative emissions that occur
while vehicles are running is reported only in
the RatePerDi stance table. However, this
table is not populated unless a Running
Exhaust process is also selected.

8. If Custom Domain is chosen, the Zone
Road Activity tab in the County Data
Manager may have an erroneous green check
even though no data has been imported.

9. The Extended Idle process does not
produce records for Benzene, Ethanol,
MTBE, Formaldehyde, 1,3 -Butadiene,
Acetaldehyde or Acrolein even though there
are check boxes for these pollutants in the
Pollutants and Processes Panel.
Error or
information
item?
Potential Error

Potential Error

Error

Error

Error
Suggested User Action
Users should remain cautious
when using databases that
indicate a red "X" for any of the
input tabs, since other problems,
such as incomplete data, will also
prevent a green check from
appearing. If necessary, users
can export the imported data or
examine the user database tables
directly using the MySQL Query
Browser to assure that the data in
the database is appropriate and
complete.

Users should make sure the Links
tab is green. When filling out a
run specification make sure all of
the chosen road types are present
in the Project Level.

When computing emission rates
for evaporative processes, always
select at least one Exhaust
Running emission process.

Users should check this tab to
make sure that it includes correct
data: a file with SHOAllocF actor
= 1 for each Road Type.

If the user requires results for
these pollutants for the extended
idle emission process, the user
will need to calculate these
pollutants manually using the
results for Total Gaseous
Hydrocarbons and Methane.
December 22, 2009
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MOVES2010 Errata/Information Sheet
                            EPA-420-B-0943
               Problem Reported
  Error or
information
   item?
    Suggested User Action
10. In the Summary Reporter, if the output
data is disaggregated by day or hour, the
output database will contain results for only
two days in each month - a weekday (daylD
5) and a weekend-day (daylD 2). In this case,
Summary Reporter should not be used to
display results for a month or year,  since the
current code erroneously simply sums these
two days together.
   Error
The user should distinguish by
daylD in the report and then
externally weight the result
according to the type of day to
see meaningful result for a month
(e.g. 22 weekdays and 9
weekend-days in a 31-day
month) or year (e.g. 261
weekdays and 104 weekend-days
in a 365-day year).	
December 22, 2009
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