• Air Toxics
• CMAQ
• Conformity

• Laws and Regulations
• Policy and Guidance
• Research
  • General Practice
  • Air Quality Planning and SIPs
  • Emissions Analysis
  • Land Use
  • Multi-Jurisdictional (Complex) Areas
  • Project Level Conformity
  • Small Urban and Rural Areas
  • Tools & Methodologies
  • Transportation Control Measures
• Reference Material
• Models & Methodologies
• Training

Modifying Link-Level Emissions Modeling Procedures for Applications within the MOVES Framework

Table of Contents

• 1.0 Introduction
• 2.0 Preparation of MOVES Inputs
  • 2.1 VMT Pre-Processing
    • Processing of TDM-based VMT data
    • Processing of HPMS-based VMT data
  • 2.2 Use of EPA Spreadsheet Converter Tools
    • VMT Converter Tool
    • AADVMT Calculator Tool
    • Age Distribution
    • Speed Distribution
  • 2.3 Preparation of Other Inputs
    • Vehicle Population
    • I/M Programs
    • Fuel Formulation and Supply
    • Meteorological Data
  • 2.4 MOVES Model Setup
    • Model Option Selection
    • County Data Manager
• 3.0 Model Execution and Output Processing
  • 3.1 Model Execution
  • 3.2 MOVES Output Processing
    • MOVES GUI Summary Reports
    • Processing Model Output Using MySQL
• 4.0 Drive Cycle Development
  • 4.1 Preparation of Raw Data
    • Assignment of Road Types
    • Removal of Waiting Times at Test Center 4-
    • Blocks of Time with Stuck Speeds
    • False Trips
    • Engine Off Times
    • Assignment of Trip and Micro-Trip Starts
    • Binning of Continuous Variables
    • Criteria for Skipping Micro-Trips for a Cycle
    • Assignment of Micro-Trips to Road Type and Speed Bins
  • 4.2 Drive Cycle Development
    • General Methodology
  • 4.3 Development of the Twelve Drive Cycles for Inclusion in MOVES
    • Speed versus Time Traces for Candidate Cycles
    • Comparison of Statistics for Cycle and Target
    • MOVES Modeling of Kansas City Drive Cycles
• 5.0 Model Outputs
  • 5.1 Comparison of MOVES Outputs to MOBILE-6 Based Inventory
  • 5.2 Comparison of MOVES Default Drive Cycle Output to Alternate Drive Cycle Outputs
• 6.0 Conclusions
  • 6.1 Important Transition Issues
    • Proper VMT Derivation and Inputs
    • Vehicle/Source Type Characterization
    • Inspection/Maintenance Program Inputs
    • Vehicle Population Data Selection
    • MOVES Bugs and Errata
  • 6.2 Study Questions
• Appendix A Electronic Files Submitted
• Appendix B Additional Drive Cycle Development Documentation
• Appendix C MOVES Model Output Summaries, by County
• Appendix D MOVES Output Comparisons for Drive Cycles, by County

List of Tables

• Table 2-1. Example Harris County Tab-delimited 24-hour VMT (gasoline vehicles)
• Table 2-2. H-GAC Road Types Mapped to HPMS Road Types
• Table 2-3. Harris County HPMS VMT Example
• Table 2-4. Default HPMS VMT, Growth Factors, and 2006 Projected VMT
• Table 2-5. Default MOVES VMT Fractions
• Table 2-6. HPMS VMT by Source Category
• Table 2-7. H-GAC Road Types Mapped to HPMS Road Types
• Table 2-8. HPMS Road Types Mapped to MOVES Road Types
• Table 2-9. Example MOVES Default VMT Fraction by Vehicle Type ID
• Table 2-10. Summary of Inputs to County Data Manager
• Table 4-1. Road classification codes and definitions
• Table 4-2. Road Classes Mapped to MOVES Road Types
• Table 4-3. First Pass Speed Bins, Based on Default MOVES Drive Cycle Speed Ranges
• Table 4-4. Final Speed Bins, Based on Uniform Distribution of Trips Across Speed Ranges
• Table 4-5. Comparison of Cycle and Target Vectors for a Hypothetical One-Dimensional Example
• Table 4-6. Comparison of Cycle and Target Matrices for a Hypothetical Two-Dimensional Example
• Table 4-7. Comparison of Dataset and Cycle Operation Characteristics
• Table 5-1. Summary of VMT and Tons of Emissions, by County, Non-school Ozone Season Weekday
• Table 5-2. Percent Difference between MOVES and MOBILE6 Inventory Results
• Table 5-3. Summary of VMT and Tons of Emissions, by County and Vehicle Classification, Non-school Ozone Season Weekday
• Table 5-4. Percent Difference between MOVES and MOBILE6 Inventory Results, by Vehicle Classification
• Table 5-5. Summary of VMT and Tons of Emissions, by County and Emissions Process Classification, Non-school Ozone Season Weekday
• Table 5-6. Percent Difference between MOVES and MOBILE6 Inventory Results, by Emissions Process Classification
• Table 5-7. Comparison of Eight County Light Duty Emissions for Both Drive Cycles and VMT Bases (Overall tons)
• Table 5-8. Comparison of Eight County Light Duty Emissions for Both Drive Cycles and VMT Bases (Tons, by Source Type)
• Table 5-9. Comparison of Eight County Light Duty Emissions for Both Drive Cycles and VMT Bases (Tons, by Road Type)
• Table 5-10. Comparison of Eight County Light Duty Emissions for Both Drive Cycles and VMT Bases (Tons, by Emission Process ID)

List of Figures

• Figure 2-1. MOVES Input Data Flow
• Figure 2-2. Example Input of VMT to EPA Conversion Tool - Harris County
• Figure 2-3. VMT Output from EPA Conversion Tool - Harris County
• Figure 2-4. AADVMT Input - Harris County
• Figure 2-5. MOVES Interface Example
• Figure 2-6. County Data Manager Example
• Figure 2-7. MOVES Input Preparation Quick Reference
• Figure 3-1. Multiple RunSpec Creator
• Figure 3-2. Sample Batch File for Execution of Multiple MOVES Runs
• Figure 3-3. Sample MOVES Configuration Files
• Figure 3-4. MOVES Output Emission Process Selection
• Figure 3-5. Summary Report Input Dialog Example
• Figure 3-6. Summary Report Output Example
• Figure 3-7. Sample Query and Output using MySQL Query Browser - Emissions
• Figure 3-8. Sample Query and Output using MySQL Query Browser - Activity
• Figure 3-9. MOVES Execution and Output Processing Quick Reference
• Figure 4-1. Sample Assignment of Road Types and Data Points
• Figure 4-2. Waiting Times at Test Center
• Figure 4-3. Data Logger with Stuck Speed
• Figure 4-4. False Trips in Drive-Away Driving
• Figure 4-5. Highway Driving Interspersed with Unrestricted Cross Streets
• Figure 4-6. Vector Description of Comparing Target and Cycle Activity
• Figure 4-7. Visual Comparison of Vector Element