FACA MOVES Model Review
Workgroup
(updated 4/28/09 pm)
Matthew Barth
Professor and Director
College of Engineering-Center for Environmental Research and Technology
University of California-Riverside
EPA-420-A-09-003
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MOVES Review
Workgroup Objectives
To evaluate and provide recommendations on the inputs
proposed for use in MOVES...
- emission rates
- fleet & activity
- fuel and other adjustments
To evaluate MOVES input and output structures and their
usefulness in meeting the needs of modelers developing
SIPs and transportation conformity programs
Under FACA structure, workgroup recommendations are
made to the MSTRS 2
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MOVES Workgroup Membership
Chairs:
- John Koupal, EPA
- Matt Barth, UC Riverside
Industry:
- Auto Alliance, AIAM, EMA, API, CRC
Environmental Groups:
- NRDC, Environmental Defense
State and Local Government:
- NACAA, AASHTO, GARB
Federal Government:
- EPA, FHWA
Academia:
- UC Riverside, Georgia Tech, NC State, Cornell
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MOVES Workgroup Process
EPA presents MOVES modeling materials at meetings
Meeting notes are taken and distributed
Workgroup members poll their membership and provide
feedback comments
Comments are compiled, summarized, and distributed
Workgroup discusses comments at next meeting with
the goal of developing consensus recommendations to
be forwarded to MSTRS
Workgroup also reviews draft MOVES reports as they
become available
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2007-2009 Meeting Topics
Fleet & Activity, Light Duty HC/CO/NOx emission
rates
Light Duty PM rates & Kansas City Study
Evaporative emissions
Fuel Effects
Inspection/Maintenance
Heavy Duty emission rates and Temperature Effects
Fleet & Activity Update
Tier 2 Emission Rates, LD PM & High VSP bins
E10 & E85 effects, Air Toxics
Heavy Duty Emission Rates
Draft MOVES2009 & Project Level Manager
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MOVES is largely shaped by data
collected since the release of MOBILE6
Activity
- in-use vehicle trip patterns
- VIUS2002
Light-Duty Vehicles
- thousands of in-use vehicles from I/M programs
- Kansas City gasoline PM study
- remote sensing data
- in-use certification verification data
Heavy-Duty Vehicles
- 100 in-use vehicles (E-55 plus)
- MOBILE6 based on engine certification data
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Workgroup Comments:
Workgroup discussions with EPA have been very
open and informative.
MOVES depends heavily on data; continuing data
collection is essential
Model validation is a higher priority than new
features
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Workgroup Recommendations:
Data Collection
Priorities for next phase of MOVES development/maintenance
should be based on sensitivity analyses.
EPA team should develop a "data collection plan" that would
fill data holes and provides data into the future for maintenance
EPA should consider some type of periodic surveillance data
collection program, in addition to relying on I/M data sets, data
from rule making projects, programs such as KC project,
PEMS, etc.
EPA should continue to be aggressive in obtaining data from
similar or related data collection programs (state DOTs,
California Air Resources Board, CRC)
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Workgroup Recommendations
Validation
EPA should develop a validation plan:
- Potentially funded and/or carried out by other entities
- Include comparisons to
• MOBILE6 and EMFAC
• remote sensing data
• tunnel studies
- Include intermediate validation of model subparts
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Workgroup Recommendations:
Future updates
Workgroup has concerns on how EPA is
going to update MOVES in the future:
- need to update both emissions and
fleet/activity inputs
- need to assure data is available
- Updates on a regular/ irregular basis?
• perhaps consider regular periodic version
release: MOVE2007, MOVES2008, etc.
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Workgroup Recommendations: Other
• Significant outreach should occur with transportation
community on interfacing MOVES with transportation
data and models
- FHWA has begun to address
- Workshops, trainings and other communications need to
continue
• Ensure that future funding stream is available for
MOVES development and maintenance
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