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Table of Contents
- This report is available in Adobe Acrobat PDF format (1.8 MB). To view PDF files, you need the Acrobat® Reader®.
- MOBILE6 Impact on Project-Level Results
- MOBILE6 Impact on the Process for Project-Level Analysis
- MOBILE6 Impact on Screening Assessment Procedures
1. Summary of Objectives of Study
2. Project Approach and Discussion
- 3.1. Key Findings from MOBILE5 versus MOBILE6 Model Comparison
- 3.2. MOBILE6 Impact on CAL3QHC Validity
- 3.3. MOBILE6 Impact on Characterizing Start Emissions
- 3.4. MOBILE6 Impact on Project-level Results
- 3.5. MOBILE6 Impact on the Process of Project-level Analysis
- 3.6. MOBILE6 Impact on Screening-Level Procedure
4. Recommendation of Best Practices
- 4.1. Inputs to MOBILE6 Most Critical for Project-level Analysis
- 4.2. Recommendations on Local Screening-Level Assessment Procedures
- 4.3. Recommendations on Exceptions to Screening-Level Assessment
- 4.4. Revisiting current mitigation strategies
Appendices
- Appendix A: MOBILE5 versus MOBILE6 Comparison Tables
- Appendix B: Not available online
- Appendix C: Interview Questions
- Appendix D: Interview Summary Table
List of Equations
Equation 1. Calculation of New Distribution for Three-Years-Newer Fleet, First 3 Years
Equation 2. Calculation of New Distribution for Three-Years-Newer Fleet, Last 22 Years
Equation 3. Calculation of VMT Fraction Increased by 30% for Light-duty Vehicles
Equation 4. Calculation of New VMT Fractions for Vehicles Other Than Light-duty Vehicles
Equation 5. Calculation of VMT Fraction Decreased by 30% for Light-duty Vehicles
List of Figures
Figure ES-1. Maximum CO Concentrations Near Typical Intersections and Freeways Using MOBILE6
Figure 2.2.1. Cumulative Frequency Distributions of Light-duty Vehicles as Used in MOBILE6
Figure 2.2.4. Distribution of Soak Times for Vehicles Parked in a CBD Garage
Figure 2.2.5. Percentage of Vehicles Parking Duration Distribution
Figure 2.2.7. 2005 MOBILE6.2 CO Emission Factors versus Average Speed
Figure 2.2.8. 2035 MOBILE6.2 CO Emission Factors versus Average Speed
Figure 2.2.9. Maximum CO Concentrations near Typical Intersections and Freeways
Figure 2.2.10. Maximum CO Concentrations near Major Intersections and Freeways
List of Tables
Table 2.2.1.1. New York Route9A: MOBILE4.1 and MOBILE6.2 Idle Emission Factors (g/hr)
Table 2.2.1.2. New York Route9A:MOBILE4.1 and MOBILE6.2 20 mph Emission Factors (g/mi)
Table 2.2.1.3. New York Route9A:MOBILE4.1 and MOBILE6.2 30 mph Emission Factors (g/mi)
Table 2.2.1.4. Traffic Operations for Urban and Suburban Intersections
Table 2.2.1.5. Percent Change in 1-Hour CO Concentration from the Freeway Modeling
Table 2.2.1.8. Intersection Parameters Used for Start Modeling
Table 2.2.1.9. Peak Ambient CO Concentrations from Start Modeling
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