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Updated Version 5/26. Testing of EPA’S MOVES Model Travel Management Subcommittee May 26, 2009. MOVES: Motor Vehicle Emission Simulator. COG DTP/DEP Staff Eulalie Lucas and Erin Morrow DTP Sunil Kumar DEP. Transition – Mobile6.2 To MOVES & Local Data Needs Required Local Datasets
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Updated Version 5/26 Testing of EPA’S MOVES Model Travel Management Subcommittee May 26, 2009 MOVES: Motor Vehicle Emission Simulator COG DTP/DEP Staff Eulalie Lucas and Erin Morrow DTP Sunil Kumar DEP
Transition – Mobile6.2 To MOVES & Local Data Needs • Required Local Datasets • Fuel Characteristics • Meteorology • I/M Program • Age Distribution (Registration data) • Population of MOVES Vehicle Types (for each county in a calendar year) • Total Base Year VMT for HPMS Vehicle Types (for each county in a calendar year) • VMT Fraction for MOVES Road Types and MOVES Vehicle Types (VMT fraction across MOVES road types for individual MOVES vehicle types for each county in a calendar year) • Speed Distribution (fraction of time spent in 16 speed-bins every hour for 24 hours for different road types and MOVES vehicle types) (Default data available, local data substitution possible)
Vehicle Populationby MOVES Vehicle TypesMOBILE & MOVES Vehicle Types Data color coded to show conversion process
VMT Fraction for MOVES Road Types and MOVES Vehicle Types • Currently COG/DTP allocate VMT fractions for: • Network traffic • Local Roads • Auto Access to transit ** VMT fractions not allocated by vehicle type
Tests executed to date ** MOVES uses a time-based distribution, whereas MOBILE6.2 used a VMT-Based speed distribution.
Feedback from Air Agency Staff • The MOVES format for input files is definitely very different from that used for MOBILE6. It will take some time to become comfortable with the new format and confident in the results produced • Created database containing locality-specific input data for 3 counties in various parts of the state. Used 3 separate databases and 3 separate RunSpecs since MOVES only allows you to generate emissions for one county at a time. (EPA plans to add batch processing in the final model.) • Encountered issues with emission calculations using different time aggregation options in the model. Emissions generated using the hourly time aggregation are considerably lower than those generated using a monthly time aggregation. Comments and sample files to EPA and their contractor is working through the issue. • VDEQ: • MDE: • Using HPMS VMT, vehicle and road types. • Completed runs. Gaining more experience will use locality specific data when conversion is completed.
Considerations • MOVES default input database or jurisdiction specific data. • Level of detail for reporting emissions (trip component or total emissions) • MOVES post-processor or COG/TPB post-processor • The use of an averaged emission rate may not be possible • Formation of a technical/policy group to decide on technical and policy items as they relate to MOVES implementation and application.
Work Plan • Review MOVES model inputs and discuss with agencies • Test model using default values • Develop inputs using local data • Apply model using local data • Compare MOVES results by pollutant with MOBILE6 runs. • Develop transportation and air agency signoff on process for MOVES inputs and overall process
DTP/DEP MOVES Schedule June 2009 Test MOVES model with local data June 29 to June 30th 2009 MOVES training scheduled (details to follow) Location: MWCOG MOVES website http://www.epa.gov/otaq/models/moves/index.htm