AQP Speed Correction Factor Study

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Motor vehicle modeling tools place tremendous importance on the relationship between emissions and vehicle speed.

Publications

"Spatial Applicability of Emission Factors for Modeling Mobile Emissions," Environmental Science and Technology, 36 (4): 736-741. 2002. D. Niemeier. abstract
"Conformity: How VMT-Speed Distributions Can Affect Mobile Emissions Inventory Modeling," Transportation, Special Issue (ed. D. Niemeier), 28 (4): 409-425. 2001. D. Ito, D. Niemeier, G. Garry. abstract
"Changing Speed-VMT Distributions: The Effects on Emissions Inventories and Conformity," Journal of Air and Waste Management Association," 50 (3): 459-467. 2000. K. Nanzetta, D. Niemeier, J. Utts. abstract
"Statistical Methods for Estimating Speed Correction Factors with Confidence Intervals for Mobile Source Emissions Models," Transportation Research, Part D, 5 (2): 103-120. 2000. J. Utts, D. Niemeier, L. Ring. abstract
"Validity in Chase Car Data: Issues of Variability and Implications for Construction of Emissions Cycles," Journal of Transportation Statistics, 3 (2): 1-14. 2000. J. Morey, T. Limanond, D. Niemeier. abstract

Research Reports

"Driving Cycles: A New Cycle-Building Method That Better Represents Real-World Emissions" September, 2008.
"The California Department of Transportation/Air Resources Board Modeling Program (CAMP): New Research to Improve Speed Correction Factors and Mobile Source Emissions Modeling," (abstract) (presentation)
"A New Grid-based Mobile Sources Emissions Inventory Model," Draft report prepared for the California Department of Transportation, UC Davis-Caltrans AQ Project Report Series, Davis, CA. June, 2001.
"Data Collection for Driving Cycle Development: Evaluation of Data Collection Reports," UCD-ITS-RR-00-3, Final Report, prepared for the California Department of Transportation, UC Davis-Caltrans AQ Project Report Series, Davis, CA. October 1999.
"Speed Correction Curves: Scoping Study," UCD-ITS-RR-98-12, prepared for the California Department of Transportation, UC Davis-Caltrans AQ Project Report Series, Davis, CA. 1998. (abstract)